560sl mixture adjustment. This is the screw that is I have done this (560SL -86) idle/mixture adjustment when I got my new FD. I'm also going to empty my gas tank because there is a fair bit of dead bugs and dirt in the tank. Alexandria, VA, USA . Also, Quadrajet air/fuel mixture adjustment aims Lets talk idle speed 560SL. The soft top is very quiet, but the hardtop makes a lot of noise. eurotec : Only turn the screw in very tiny increments. I *know* I need The screw sets the fuel air mixture at idle. The cold running is controlled electronically by some sensors and Once you get that, you need to adjust your idle mixture (meaning both screws in a balanced way) using a "Vacuum Guage". Heikkif. Congrats on the 560sl. Save Share New to the forum and the 560SL Just bought this car to semi-restore for daughter. You hook that up to a vacuum port that has full vacuum to it. Have bottled water in the car and it is steady at idle now. The Djet's MPS and ECU mixture adjustments are pre-set at the factory. Mixture screw adjust the starting "open loop" mixture prior to engagement of CIS-e closed loop mode just after starting. 048 5. Hi all In looking at the slightly sooty look of the plugs on my 560sl I'm thinking it may be running a little too rich. Yes there are various size pucks but your original ones won’t work so you will have to buy new. OL relay, 1987 560SL. Needs to be within . Johnnygar Discussion starter 178 posts · Joined 2009 Add to quote; Only show this user #1 · May 23, 2023. Sort by Oldest first Oldest first Newest first Most reactions. 560. IDLE MIXTURE SCREW: The idle mixture screw is the only externally adjustable carburetor jet available and controls up to 1/8 throttle only. Then put the relay back in and try it. Only problem is I can't reach the steering box. 560 Fuel Mixture Adjustment . When I reved the Engine while sitting on the garage floor it would leave a trail of black soot on the floor. e CO meter. 048, was equipped with the M117E56 engine from the Been noting quite a bit of Steering sloppiness in my 1983 380SL. Intermittent High Idle - Satan's 560SL | Mercedes-Benz Forum (benzworld. I was working yesterday on my CO mixture, since in was not I am explaining on how to set plate clearance in relation to fuel distributor plunger so car starts every time and has a baseline mixture set point. Mechanic installed 8 new fuel injectors on my 87'' 560sl. This is important in identifying what the eha valve Hello, Just picked up a 2006 ZZR600 and need to make slight adjustment to idle mixture as it appears it is running just a bit too lean. Start the engine and let run at half throttle for 5 minutes to bring it up to operating temperature. When I press the diagnostic button 2-4 seconds, the led blinks once, but when I press it again per BOSCH KE3-JETRONIC MIXTURE ADJUSTMENT it just blinks again instead of coming on solid, so I don't get it. One of the sources for these adjustment is the oxygen sensor, if present. I'm not sure I have that adjustment any more. The Marine Mechanic I'm going to connect you with knows all the tricks and shortcuts. Now some folks don't advise making this adjustment willy nilly and if you do make careful notes on I have an 87 560SL with 96,000 miles on it. Mercedes Mechanic: Marty . I have replaced the side window-to-hardtop seals but there is still some noise. A bad oxygen sensor could cause the mixture to go rich. There are those who advocate to never adjust it but I digress. How to fix a very old tractor. Share: 560sl steering adjustment. 0 32V You don't do a valve adjustment like on the old M110 on a M117 (560 SL) The valve clearance is automatically adjusted by hydraulic compensators. Something below 5% like 3-5%, I think, more Caution! Do not adjust the driver’s seat Do not remove head restraints while driving. Posted by barry s . And due to the sudden onslaught of your problem I doubt any adjustment will really do any good. Jan 21, 2005 3,290 UK #3 Iain, Oct 12, 2007. In segments of 1/8 turns, start to turn the S/S needle valve in. Slight random miss. Just gotta get them adjusted a bit better. Vacuum leaks are definitely a possibility. Normal adjustment for 2 needle carburetors begins with the L needle. HiCustomer I would start by trying to tweak the fuel mixture. When you adjust the fuel mixture screw underneath the passenger footwell which way is clockwise? If you’re looking straight ahead sitting in the car it would be normal but if your under it Door Adjustment for 560sl ! Jump to Latest 2K views 34 replies 8 participants last post by Ravi Singh Dec 31, 2023. The two primary adjustments for the CIS are the idle speed and the mixture adjustment. next I need to adjust fuel pressure since I just replaced EHA that sprung a leak. Lastly, it would be helpful if you filled out your entire profile. Free Shipping over $99! Lifetime Replacement Program; 310-626-8765; Selected Vehicle: SELECT A VEHICLE. My FD was changed last winter and during this summer the replacement FD showed to need more attention. I'd start with a smoke test of the intake system for vacuum leaks then a mixture adjustment and then a diagnosis of the fuel distributor for even fuel distribution to all cylinders. First fuel pump inlet was full of trash so that was obviously an issue To adjust the mixture you push down on the adjuster until it engages into the lower adjusting screw then rotate the adjuster clockwise to richen the mixture. Then it is used to set the relative position of the closed loop mode within the governing range (50% ish at Watch a step by step tutorial on how to adjust the idle mixture screw on a typical carburetor. L. Try a Search, lots of posts on how to adjust the mixture. As you turn the valve in, the Engine Tools for Mercedes-Benz SL-Class (1972-1989) R107 C107: Valve Adjustment Tools. thank you . look for a fuel line to it. Jonathan . If you have all of your adjustments for ignition, throttle linkage, and idle mixture air screw set up properly, and you can't turn your idle fuel mixture screw out any further, then your pump is set too rich and it will need to be leaned out. What tool(s) will I We work directly with brands listed on our site, which allows us to offer you the best prices. What this means most 560SL '88 Suzuki GS1000E '78 That happens occasional and lead of course to a rich mixture that you can't adjust well. My 1986 560SL with 200K miles does have slightly rough idle. I messed with the fuel mixture screw. Click here for a good article on the adjustment procedure. My mechanic recommended to replace my iron distributor to the Aluminum one. Replaced potentiometer. But after driven a few miles and is not restarted - Answered by a verified Mercedes Mechanic Reinstall the injector line, start the engine and adjust mixture when it reaches operating temperature. But if it ran well, and is suddenly running crappy, chances are you've developed a vacuum leak. 1989 560SL Rough Idle When Cold. Either you have the mixture way too lean and you were pushing the plate down too far or you have the mixture way too rich or the plunger in the fuel distributor is stuck. It's look like the air/fuel mixture on my DR need a bit adjustment but the screw is a bit hard to reach. _____ Fallow my advice below and try again. Hi Nick, the first thing I would do is a fuel mixture adjustment. Seat is just at the upper end of its adjustment. That said, you might be able to find the sweet spot with SMALL adjustments. Note reading, then start adjusting the Mixture screws. The cold start valve only Actually I did make a very slight adjustment to the idle mixture screw this morning using a 3mm allen wrench, turned the screw about 1/16th rev clockwise to enrich and the results were fairly significant. 018 => Daily driver 1981 300D 1989 560SL (Paragon) - 90,741 miles. If the mixture is adjusted too lean it could cause the hard starting problem. Ended up adjusting the fuel mixture through the air cleaner and car smoothed out perfect but is now running to rich which causes it to be hard to start when hot and plenty of black smoke, Any ideas here? Guys, that is not the EHA. I have spark and fuel. It was in the shop for timing chain rail replacment, etc. - sold If you carefully read my posts, you will realize that on a KE-Jetronic the adjustment that is done with what you call “mixture screw” does not refer to the mixture, but to the EHA operation range which is represented by the Lambda on/off-ratio (duty cycle). Any Good evening, I have come from the porsche world and now own an 89 560SL. Once the engine is hot, put your multimeter probe into the x11 port on pins 3/2 and check the reading. I followed MBNA V-8 Engine Service Manual to do this job. We have been at it for almost a year. 5 turns prior to installing the carbs. Over 35 That is one component of the idle mixture adjustment, setting the idle height of the air meter plate. I'm trying to push my window forward its hitting the b pillar seal it probably needs to be forward by an inch which screw needs to be loosen to adjust I have a 1990 300E 2. 87 1987 Mercedes 560SL Air / Fuel Mixture Adjustment Wrench - Fuel Delivery - Genuine - PartsGeek Guys, that is not the EHA. If the mixture is not adjusted properly the car may struggle to stay running until it warms up. At least on a 560sl. Problem is car runs super rich, lots of black smoke, won't go over 40 mph, "bogs" when you hit the gas. If the engine doesn't reach peak rpm until the screw has been turned more than two turns, it might indicate that the pilot jet is too small (lean). If the carburetor is too far out That tells me that either you have a fuel pressure problem or the fuel mixture is out of adjustment. First things first, your car needs to be running in 380sl mixture baseline adjustment. A proper mixture adjustment while monitoring current to the EHA valve on the fuel distributor and the oxygen sensor is imperative. 87 Mercedes Benz 560 SL oil leak off the back of the engine, when running we loosened the oil cap and the leak stopped. 6 x5ms scale duration = 23ms. The car runs so smooth, idles at 600 rpm in drive and 700 rpm in park. It has a couple of allen head bolts holding it to the intake manifold and a blue plastic electrical connection. This adjustment controls the fuel flow to the low speed or idle circuit. PeachParts Mercedes-Benz Forum. 0L 32V 87 Hammer 6. I have done other repairs such as a tune up, fluid changes, and repaired the odometer. My car was federalized and had a lambda box, O2 sensor and metering valve. How do you correctly set and adjust the idle RPM and the air flow (the Turning the 3mm will only effect your mixture up to 2500RPM. If out of spec, shims can be added (as mentioned above). 30K. The car has not been Begin with 1/8th of a turn CW of the main mixture screw. If the mixture is off it can cause this problem, even intermittently. If you carefully read my posts, you will realize that on a KE-Jetronic the adjustment that is done with what you call “mixture screw” does not refer to the mixture, but to the EHA operation range which is represented by the Lambda on/off-ratio (duty cycle). I have been searching for quite sometime now on how to perform the timing adjustment to the 560. Those suckers cost. miasman1. Jump to Latest 1988 560SL 1985 280TE 5spd. This is the device mounted on the pass side of the air flow meter. Ravi Singh Discussion starter 1177 posts · Joined 2019 Add to quote; Only show this user #1 · Dec 19, 2023 (Edited) Hey guys I opened up my door card to get the window adjustment 100% THIS TIME. Mixture adjustment on Strombergs. 668 posts · Joined 560sl window adjustment. In order to keep it running I need to adjust the air plate 2 extra CW turns ,so there is no 1-2 mm gap anymore . Save Share On Driver side of Fuel Distributor. As you turn the fuel mixture screw out, the slow speed mixture circuit is metering more and more fuel to the engine. Reeves) Initial setting is: Slow speed = seat gently, then open 1-1/2 turns. sdphill92 Discussion starter 27 posts · Joined 2012 Add to quote; Only show this user #1 · May 31, Hi, your problem is definitely with the fuel distributor or the mixture adjustment. My car is 560SL 1986. Thanks,Nick. In you case the sensor plate may actually be to low, because the sensor plate is to be pulled down by vacuum until it depresses the Euro M110 Idle Mixture adjustment. To eliminate the impact of EGR you can easily install a thin metal layer between EGR valve and exhaust manifold. Another problem could be a leaky EGR valve. For such a slight adjustment the engine is peppier and to me somewhat quieter and smoother on acceleration. org) Used ICVs are not a good choice and the commanding signal if is very tricky (see link). FD plunger depth position has also impact here. Car started idling rough when cold - once gets up to opertaing temp, runs great - slight hesitation, but nothing to complain about. 1972 MG MGB GT 1974 MG MGB 1976 Triumph TR6 1980 MG MGB. I have not changed the diagraph yet, my problem was partially blocked FD ouput for cyl 8. I'll try to pull it out this weekend. Do you know whats the problem the car will not start. Driving in cold weather, in stop- and-go city traffic, on short trips, and in hilly country also increase fuel consumption. 4 upper and 5. The electronic service manual isn't very clear on what the values should be, since it a potentiometer ther are 3 connectors on it and I should have a resistive value across any 2 connectors, but mine is Carb air fuel mixture adjustment. You can test the mixture by measuring the plate position at the potentiometer which is the small black box on the left side of the fuel distributor. location etc, etc. sendi Read less. Like. Just make sure to note how far you I've been chasing down a rough idle/stalling issue on my 1988 560SL—which, aside from this one problem, is running great—for a while now. 0 1986 560SL: '84 500SL: '84 280SL 5 speed: other 107s ALL SOLD Joined Jun 14, 2008 · 32,795 Posts #25 Once it is hot, then it will try to adjust mixture. The earlier cars have more iron, chrome, and brass. My car does a similiar thing to the other guys. First fuel pump inlet was full of trash so that was obviously an issue Idle adjustments should be done at idle speed around 900 RPM. You will need a 4mm allen wrench. Start engine and set the rpms to where it just stays running. Tank was dirty too so I cleaned it out well with muriatic acid mixture, rinsed a few time and coated tank with two stroke gas to prevent rust. Past MBs: 1986 420SEL (Bismark) 1988 300E (bondobuggy) REPLACE YOUR FUEL FILTERS. Further t 560SL '88 Suzuki GS1000E '78 That happens occasional and lead of course to a rich mixture that you can't adjust well. sending unit. The screw is indexed so that it should click when you Docsouce: sorry I don't have that explanation for you. sdphill92 Discussion starter 27 posts · Joined 2012 Add to quote; Only show this user #1 · May 31, The mixture is adjusted via the mixture adjuster between the air flow sensor plate and the fuel distributor. Is it difficult for a novice to do? 2. I solved my issue purchasing another used FD, now the air plate should have home position adjustment and further the mixture adjustment It was tricky to adjust this plate at zero free play and same time not too tight. faulty fuel pressure regulator. The EHA is part of the KE Jetronic fuel injection system and makes minute adjustments to the air/fuel mixture. The car has 125,000 miles on it and has recently had. According the annual emission inspections the job was done well, all values are within even This #R107, #560SL Video: Installing Mixture Control Unit In this short video, I install the Mixture Control Unit. The 560SL, which went by the name 107. How to fix a very old gas tractor. But as sensors, fuel supply systems and the engine age, the ECU can start to get things wrong. Turn clockwise to richen mixture, CCW to lean. Topic List Forum List Newer Older Start New Topic. 22890 posts The adjustment was suppose to be 1/4 turn at a time, but when I broke the jam nut loose my allen turned too. Adjusting air/fuel mixture. MERCEDES BENZ R107 560SL 1986-1989 Complete authorized Workshop Service and Repair Manual. i. and while looking into the injector port in the top of the fuel distributor turn the mixture adjustment screw clockwise until the port just starts to fill with fuel then turn the mixture screw 1/2 turn And when the control plunger is set to a lower position by turning the adjustment screw ccw, leading to a leaner mixture, the o2-sensor immediately reacts with voltage not overshooting 450 mV, upon which the ECU immediately reacts by sending a current fluctuating around a more positive mean value through the EHA’s coil in order to enrich the mixture I purchased recently an 88 560SL, a time bubble, 27,500 original miles. Save Share Carb air fuel mixture adjustment. sometimes i get the 85% fixed thing. 1989 560SL (Paragon) - 90,741 miles. I have replaced the EHA Valve (two screws and a plug) - and now the car is stalling when cold. Full of information for professional technicians and DIY mechanics. I think the answer you may be seeking is "woodruff keys" and not the real explanation of how 560sl timing works. Turn the idle mixture screw ([A] Fig. (2) Air metering plate - remove air filter and check air metering plate in intake. - I also noticed smoke coming from the fuel mixture 3mm adjustment hole, not sure if the air filter covers it, but may have to buy a new one later if the problem comes up again, or if it closes up when the car is on. Choose top quality brands Genuine. Car runs great but has loap at idle which is un changed by idle adjustment. 18682 posts · Joined 2005 Add to quote; Only show this user Hi, I can get the my Mercedes 1989 560sl to start but when it starts to idle it dies after about 7 seconds. Adjust the correct operation point by the mixture screw. Don't forget to subscribe and like :) I also had idle issue and then first hot start issue and later became cold start issue as well on my 560SL. you can see it thru an aperture in . 0x = same idle mixture The idle mixture screw is a special component on the engine’s carburetor controlling the air and fuel mixture while idling. To simplify things, press the red button and it flashes and in a way to tell what’s up and points to the direction of needed adjustment. Sign in to contact. 023 = Marty,In addition to the 1987 MB 560sl, we also have a 1984 MB 280sl ("110 series" German specs). Lastly, it Mercedes Ke Jetronic- CO/mixture screw adjustment (air-fuel ratio adjustment) Sensor plate adjustmentIn this video we are going to talk again about the mechan There is an Air-Fuel mixture adjustment. Therefore, do not use The field mixture adjustment is performed with the screw in the tower located in front of the FD. When I purchased the car it ran like crap so I Question. The ECU has a mixture adjustment knob. For now you can just turn the screw a little clockwise to richen up the mixture. Car won’t start without putting a 1986 560sl: glove box. The EHA can leak either because the o-rings between the EHA and the fuel distributor have gone hard, or because of internal leaks in the EHA itself. Reason for changing a I'm not sure how to check the valve without a manual. The CO range is I took my 560SL out for a test drive and she still runs great and the idle seems slightly smoother. it's in the same position as an idle speed adjustment and has a large head. One type is called a fuel screw because it regulates the flow of fuel into the idle circuit. using a hex bit socket attached to a 12" swivel extension and a 19mm crowsfoot wrench on a universal with a 12" extension. Important Note:Once the plate resting position is corrected by properly adjusting pin, thenThere is no more “gap or play” in the plate and Allen screw should Intermittent High Idle - Satan's 560SL | Mercedes-Benz Forum (benzworld. Gently drive guide pin down into housing if plate is high. Jump to Latest 2K views 7 replies 4 participants last post by Turbo510 Oct 10, 2021. Hi all. I was really annoyed with the window noises after Turning the 3mm will only effect your mixture up to 2500RPM. 1 2) in until you feel it just make contact with the seat. Porsche / BMW / If so, you may need a new o2 sensor and a mixture adjustment. Read that adjusting the box or coupler will tighten it. Dick *The metering needle has a keyway slot that accepts this spring loaded screw. Rear Axle Shaft Flange Removal, adjustment of bearings and installation; If needed I can scan and send instruction page to you. The frequency valve will then enrich or lean this setting depending on engine needs. Always starts right back up. By chatting and providing personal info, you understand and agree Hi Nick, the first thing I would do is a fuel mixture adjustment. What you're describing sounds like the zama carb on my stihl fs250, just one adjustment screw that appears to be an idle speed adjustment. Over 35 years experience. Fuel pressure was 6 bar, swapped ina good used fuel distributer and pressure regulator, set idle mixture and car ran great. All the ones I have read between . If you need to change a rocker arm, the basic position of the hydraulic element should be checked with a go-no-go gauge. The idle mixture screw is only one facet of overall carburetor jetting, however it is one of the first places to start Stalling 1988 560SL. Door Adjustment for 560sl ! Jump to Latest 2K views 34 replies 8 participants last post by Ravi Singh Dec 31, 2023. 6L V8; 88 560sl: 88: Starts easily, accelerates OK. Save Share. Jump to Latest That is one component of the idle mixture adjustment, setting the idle height of the air meter plate. Page 3 Owner’s Manual 560 SL Model 107 1986; Page 4 Printed in Germ any We reserve the right to modify the technical I think you were OK making that adjustment to the Air-Fuel Mixture screw. Free play of . Well after the 2nd time doing the 1/8 to 1/4 turn to dial it in, the car idled very poorly, then the car died out 560sl idle problem. 1 The mixture adjustment is accessed with a long 3mm hex key through a hole in the "tower" on top of the FD '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe #5 04-21-2008, 10:01 PM 82gray380. This topic is about my 1976 Triumph TR6. Steering box freeplay is easiest adjust when the box is out of car. 1986 560SL, red/white, 190K mile. org) So, I'd expect that I could richen the cruise with 1 size larger (42) pilot jet (size of pj is 75% of cruise mixture) and the "trim" the fuel screw "in" for best mixture for best idle (size of pilot is 25% of idle mixture). You need to get the mixture adjusted so that the car will stay running. First fuel pump inlet was full of trash so that was obviously an issue My 17 year old son and I have been working on a 1987 560SL that we bought not running. On the 560SL, I was able to do this job by accessing the bolt and jamb nut through the exhaust manifold. Just upload your photo, and download your perfectly resized image. If we can't get it true by adjusting the stops, then we put a put a folded towel on the low side and push the hood down on the high side. All this is assuming that the ignition parts are in good order. 0x to the 42. Marty, I have a 1988 560sl. So in doing this fuel adjustment on my m103 12v, a 1/4 turn richer started to make it run much smoother (had a lean condition after eha was swapped last summer). I don't know though, and that answer if mine just refers back to your other thread Just like Rowdie inferred. A search on google for 560sl cold start valve should provide you with pics of what it looks like Interference Information This equipment generates and uses radio frequency energy and if not installed and used in strict accordance with the manufacturer’s instructions, may cause interference to radio and television reception. Before the engine was idling rough, I played around with the fuel mixture screw I pressed it on the way in. Full throttle condition cold start injector sparys extra fuel into intake manifold and all cylinders will get fuel/air mixture. For example X11/1 or the W9 ground point. But even VERY small adjustments make a big difference. Only turn in 1/8th turn increments at a time. Chuck Taylor Falls Church VA 1998 SL500 1959 220S 1970 280SL. If it's not, that would indicate that your pressure differential is off. At the moment I know only one aftermarket part which can be used but even this needs adjustment. 1986 560sl: glove box. I will imagine I won't be getting There is an Air-Fuel mixture adjustment. Can give a couple quick snaps to throttle and vehicle runs Now crack a fitting on top of the fuel distributor and see if you get a dribble of fuel. I have included the wiring diagram have a close look to see if you can find anything which could cause no voltage or no ground at the X11. Question about a Mercedes 560SL, Sure. It will restart without ether as long as it is warm but not when cold. Discovered adjustment procedure. Turn the air/fuel mixture adjusting screw counterclockwise for a leaner air/fuel The screw you are turning adjusts the sensor plate within the air horn, affecting the A/F mixture at idle only. 0 Reply. R107. But the set screw in the side of the air valve doesn't have to be touched to adjust the mixture. Learned here that the Steering Box Adjustment nut was on the Rochester 2GC idle mixture adjustment. Save Share Reply Quote Like. Discover more answers . H. Way off now. Turning the mixture screw clockwise moves FD plunger up and opening the mixture screw CCW moved FD plunger down. PDF Download. littlecody8 Discussion starter 108 posts · Joined 2010 Add to quote; Only show this user #1 · Jan 17, 2015. however it doesn't contact the throttle lever and is threaded left handed and is actually a mixture adjustment. barry s Barry Stoll. try 2. I've pored through the forum, found some posts that describe something close to my issue, and done what others have done before me, but I still haven't been able to solve it. Car runs very rough, especially when Page 1 Owner's Manual; Page 2 • have all maintenance work per­ formed at regular intervals by an authorized MERCEDES-BENZ dealer. Our catalog features detailed pictures of I think I'm going to go ahead and pull the carb off again to get to the mixture adjustment screw. In case anyone else is trying to troubleshoot this, I found that a 1/2in everbilt rubber screw protector which is a stock item at home depot works as a replacement cap for the modulator (at least temporarily to troubleshoot leak). On most Zama carburetors to help find the correct adjustment there is a small L beside the Idle mixture screw and H beside the High speed mixture adjustment. I set them at 2. Was at another shop, $1500. Buy a 1987 Mercedes 560SL Air / Fuel Mixture Adjustment Wrench at discount prices. I just turned the allen set screw ccw until I felt something inside touching Ihave a 1986 560sl when car warms up it starts to run fat or i have changed many parts with no changes please help. The adjustment of this screw plays an effective role in increasing or decreasing the idle speed and supporting the engine running smoothly, preventing high RPM when starting the car. Voltage only shows that a current is present whereas duty cycle shows a percentage of on and off over a period of time. Jump to Latest Could the fuel mix be too high and I am running too rich? Thanks Dwight . If plate is low, remove mixture control unit. Jump to Latest 1K With the valve put back in, I then adjusted the fuel mixture in the eha valve. Just don't make it the first thing you do. Either your compensator is not holding pressure as it should or you have abnormal wear of either the cam or Hi, the mixture adjustment screw is located between the fuel distributor and the air flow sensor plate. Post Sep 09, 2009 #7 2009-09-09T23:27+00:00. 7 volts on hot idle. The main input to the control unit is the oxygen sensor. If the duty cycle is pegged at 95%, then richen the mixture (clockwise). This video is relevant to all #M116, #M117 Mercedes-Benz 8 Push the adjusting device down with the screwdriver against the spring force, and turn it slightly until the hex head engages in the air/fuel mixture adjusting screw. After test driving the bike, I can tell that the idle mixture is a little lean as there is a little bit of popping in the mufflers (unfortunately free flowing mufflers all thanks to the previous owner who sawed off the silencers). If not, richen the mixture (clockwise) until you see some. My 560SL was running so Rich it would leave soot down on the Garage Floor, and pin 3 of the Diagnostic Port was pegged at +12v. 0L 32V 86 560SEL AMG 6. usually does better when warmed up. J. To move the latch down, we whump the According to the workshop manual, the correct idle speed of Park is 650 +100/-50. 560sl are a little more complicated and have a little more plastic. The mixture can be adjusted by turning a small hex screw that is located in-between the fuel distributor and the sensor plate. Hi Everyone, I hope as usual I might get some answers to a problem I am having with my 86 560SL. DO NOT EVEN THINK ABOUT ADJUSTING THE AIR / FUEL METER!!!!! That is not air fuel mixture. It has no Hi there, just had entire coolant system radiater water pump and therm replaced, 1983 hardtop 380SL, and I live in cool climate. Can adjustment to mixture screws be done with carbs on the bike? 3. Normally it's suppose to be easy to reach, somewhere on the side of the carburator, but on my DR650 2003, the screw is located under the carburator and I synced the carbs today, but did not take the time to adjust the air mixture screws. while driving could cause the For this purpose refer to “Practical driver to lose control of the Hints”, page 90. Jump to Latest it was still tricky to adjust correctly but we got the car to run very nicely, we adjusted the mixture to slightly richer from the adjustment screw inside the tower (tube) that runs all the way up through the air filter. 1988 560SL Pine Bluff, Arkansas. Contrary to widespread misconception, no matter whether the duty cycle 1988 560SL Pine Bluff, Arkansas. The guide shoe is present to adjust preload. The warm up regulator, also called the control pressure regulator is responsible for controlling the A/F ratio at Page 52 To adjust the tone characteristic Volume adjustment Bass and treble can be adjusted independently. This is found on all non catatalyst models. Nutz 4 Benz. I checked the RPM signal on pin 1 and got a waveform of 4. Customer: 1987 560SL stalling upon reaching operating temperature -- intermittent and difficult to recreate. It tells you how about your mixture and which way to adjust your mixture at any rpm. Adjusting Idle Mixture RPM. 04-. First and foremost it is a totally mechanical system save the EHA to trim the mixture by the ECU. If you FD is shot, we can get you a proper reman for about 550. Go in 1/2 turn increments as the tolerance for adjustment minimal. Mixture adjustment on Strombergs #1. Glenn when we adjust fuel mixture it did not lean out should we be testing with upper chamber or lower chamber? readings are 6. 1989 560SL- sold 1994 E320 wagon- sold 1995 SL500- 46,000 mi. Marty. When the car bogs down it sounds like the mixture is changing and the car is running too lean or possibly too rich. 0 201. There wasn’t, and I leaned it out a little bit and put it back in the car. I've attached a picture below for you. Some cars use 3ft, 10ft, 15ft and many 25ft for adjustment. Hi, the mixture adjustment screw is located between the fuel distributor and the air flow sensor plate. I just turned the allen set screw ccw until I felt something inside touching 1983 380SL, ivory/dk brown, 46k miles, dual roller timing chain. Browse by Make. Move throttle to SLOW. It's not like messing around with idle Marty,while checking fuel pressure on a 1986 560SL, because of a no start condition,the pressure gauge maxes out at. Hi Guys, A friend of mine has a 380sl 1985, it was running rich so they adjusted the 3mm allen screw behind the air intake, now it won't start or run at all, and the adjustment of this scew is way out, I figure it gets adjusted with a duty cycle meter or similar with the engine running but I cannot get it to start, is there a ball park method I am doing my 1986 560SL season service, today I managed the FD air plate Basic and Zero position adjustments. My question of the day is re that adjustment (allan key type screw) in the top of the fuel distributor. Probably a coin or something like that in the mechanism. I have an 86 560sl with a ton of wind noise. slik560. Checked/compared with the passenger seat to be sure when was up/down. If you do do adjustments, make small 1/4 turns, document what you did, and take your 560SL for a test drive to see if it is shifting the way you like. The issue - Answered by a verified Mercedes Mechanic Hi, it sounds like the fuel mixture needs a slight adjustment. Will do that shortly. Rotate it about 1/2 turn CCW to lean the mixture. The mixture when car is under load (throttle plate open) is adjusted by a small screw on the MPS. Hi Scott, the check engine light will come on if the O2 sensor is out of range. It’s nice to have the O2 sensor still functioning in the system but with the base fuel mixture set the engine will run fine without. First fuel pump inlet was full of trash so that was obviously an issue For my 450SL 79, it doesn’t start smoothly delay and I feel it overburns fuel black plugs. You can start with ¼ turn clockwise. 2nd and 3rd would over “rev,†on rpm’s until dropping into gear. To fix this problem could be a myriad of complications (welcome to the M117 engine), but I suggest starting at the idle air valve (top front of the engine under the air cleaner housing) and clean it out with some carburetor cleaner. If that doesn't work, you probably have fuel pressure issues. Whether your a professional mechanic or a novice this video will show you all you need to know to properly set the idle mixture. Tell me a bit more about what's going on so the Marine Mechanic can help you The method for adjusting is given here => SG-Motorsports Air Flow Meter Potentiometer Replacement . I tried techron , it didn't do anything , i checked the vacums , they were ok , untill i adjusted the air fuel mixture 1/4 turn clockwise and now all the problems solved and the car runs like a champ. I wouldn't touch that screw unless you have a way of measuring Indy said fuel adjustment is off and to adjust fuel enrichment screw. By playing with it, you've overwhelmed the frequency valve's ability to do its job. Page 3 Owner’s Manual 560 SL Model 107 1986; Page 4 Printed in Germ any We reserve the right to modify the technical 1983 380SL, ivory/dk brown, 46k miles, dual roller timing chain. Insert the wrench and push down on the spring loaded adjuster until it engages into the adjusting screw below. The method for adjusting is given here => SG-Motorsports Air Flow Meter Potentiometer Replacement . Thanks Frank, so the adjuster is actually on the FD and not on the EHA itself? (1) Air fuel mixture - if this is incorrect, hard starting will occur both hot and cold engine. Lean or fatten to get the highest vacuum reading over all (do NOT touch the idle speed screw to get higher You can pull that rubber cap off and it will reveal a key that you can turn to adjust the pressure. As you turn the valve in, the im not sure if the computer is adjusting the idle higher to compensate for the issues or there really is a hidden vacuum somewhere. Page 34: Heated Seats Turning off heater: Heated Seats If one indicator lamp is on, press in The heaters can be switched on 560sl window adjustment. 1986 560Sl had rough idle - did the usual - checked all plugs wires cap rotor etc. The other possibility is that someone has tampered with the mixture adjustment at some point, you can look down the adjustment hole and see if the tamper proof plug is missing. 1406 posts · Joined 2019 Add to quote; Only show this user New to the forum and the 560SL Just bought this car to semi-restore for daughter. First fuel pump inlet was full of trash so that was obviously an issue Guys, I am trying to test the air flow position sensor or potentiometer on my 1986 560SL. The first thing that I would do is have a fuel mixture adjustment performed. Then when close take the car out to verify and fine tune. Let me know if you have any questions. #FarmallFanatic #farmall Yeah, I pushed and pulled on the lever real hard. Said control doesn’t seem to give all of the proper codes in certain modes. 1989 560SL will start briefly, then die, as if the key is cut off I have replaced the following items: EZL, crank sensor (rear one), ignition switch, plugs, wires, distributor cap, coil, EHA valve, and fuel pump relay. Hi, the mixture is controlled by the KE Jetronic control unit by way of the EHA valve on the fuel distributor. Porsche; Mercedes; BMW; MINI; Audi 1986 Mercedes-Benz 560SL Base Convertible 107. Interaction between potentiometer 560sl window adjustment. and while looking into the injector port in the top of the fuel distributor turn the mixture adjustment screw clockwise until the port just starts to fill with fuel then turn the mixture screw 1/2 turn counter 4. I hadn't done any recent work on the car, and nothing out of the ordinary happened. . 2. Want to search the Index? View all US models by Chassis: View all US models by Model 1989 560SL will start briefly, then die, as if the key is cut off I have replaced the following items: EZL, crank sensor (rear one), ignition switch, plugs, wires, distributor cap, coil, EHA valve, and fuel pump relay. That's a better description than "the valve". Ravi Singh Discussion starter 1177 posts · Joined 2019 Add to quote; Only show this user #1 · Oct 7, 2021. I've attached a picture showing the location of the mixture adjustment, it's between the fuel distributor and the air flow sensor plate. All the control modules behind the glove box, found a faulty fuel pressure regulator replaced the cold start valve and sending unit about all the fuel related stuff. Ravi Singh Discussion starter 1177 posts · Joined 2019 Add to quote; Only show this user #1 · Dec 19, 2023 Customer: I have 1986 Mercedes 560sl. Iain F1 Rookie. The only real way to accurately adjust it is with a CO2 meter. Wait a few seconds for the engine to respond. Bosch Certified Master Tech. Sounds like you need to adjust your CO mixture and make it a little richer during engine normal temperature (around 80 degrees on your temp gauge). Very smooth. To go back to ~ the same idle mixture, after going from 40 pj/4. But it only adjusts the mixture at idle. A full turn is NOT small. Contrary to widespread misconception, no matter whether the duty cycle oscillates around a low value or How the KE -Jetronic from Bosch works, what happens when the idle speed actuator/idle speed control valve is de-energised. My question is: . 0L 32V 87 Hammer Coupe 6. ) and on a part with its manufacturing variability, then I think the the adjustment most likely is a bit more complex than just a simple depth measurement like "one glove size fits all", especially that the EHA is the "final adjustment" of They get better MPG, and they are faster too. 6 lower with eah connected or not connected have same readings. Use a long hex key, or the special mixture adjustment tool to turn the screw. We take care of the stocking, packaging, and shipping, meaning that our shipping and stock info is always accurate. 6L V8; - Mixture beyond leaning limits EHA The last one doesn't apply for you (yet) as engine OFF / ignition ON should be 70% DC regardless of the mixture setting. This needs to be adjusted using the correct meters, i. One person noted that his 500SL needed adjusting around 40K miles too - so I highly suspected mine needed a Steering Box adjustment too. The symptom varies from little to none, to almost stalling. 57chevynut May 31, 2023. S. 1988 benz 560SL ran out of gas won't restart fuel was leaking out of regulator fuel inject replaced this part. Gently drive guide pin out from below. It's the base mixture screw. Planning to delete my cat soon my o2 sensor is before the cat so any reprogramming or adjustment needs to be done ? 1988 560sl . isthisdave. 1988 560SL What would you call it? EHA Engine Tools for Mercedes-Benz SL-Class (1972-1989) R107 C107: Valve Adjustment Tools. 5x 40 pj / 4. Jump to Latest 15K views 13 replies 6 participants last post by yka Jan 17, 2015. Try the next larger pilot and retest the fuel mixture adjustment. I adjusted the Duty Cycle to a more lean mixture using a 3mm Allen wrench. I just started the 560SL, with ether ,and let it warm up. DoktorNo Discussion starter 501 posts · Joined 2006 Add to quote; Only show this user #1 · Apr 12, 2010. Sent from AutoGuide We talk about carbs and timing then tune up the M#farmall#antiquetractors#carburator Turns out the leak was from the rubber cap, not internal to the modulator. Unplugging the vacuum line from the valve won't help, if the hot If the engine runs smoother with full throttle, it supports the diagnosis of damaged FD. #11 Probably if you put a scope in there, one might see square waves and might visually adjust the duty cycle. all ok. Conversely, if peak resize image in px without losing quality. Fuel economy seems to be getting worse too. If it is more random, then injectors and seals would be a reasonable next step (Carburetor Adjustment – Single S/S Adjustable Needle Valve) (J. org) The only mixture adjustment a Mechanic would/should make on an assembled engine is done on a single screw that affects all 8 cylinders equally -- see jpeg: Image Unavailable, Please Login . 1 2. 45 size. I tried to adjust the air fuel mixture on the fuel distributor of my 560sl however the screw turns freely like it is broken. Probably one thing you should have done before adjusting that screw was to make note of the But my gorgeous 560sl (86') just started running really rough the other day. Hoping y'all might be able to Later ones AKA 560SL has a tower in front of the plate that you must extract a lead sealed plug to adjust. To reduce volume, press the volume control button downward; To set the radio to a “flat” tone setting (bass and treble The engine coolant is a mixture of the lower heat transfer capability of your car: MERCEDES-BENZ Anti­ water and MB anticorrosion/anti­ the solution. New O2, plugs This time my nagging issue with my 88 560sl has to do with the fuel/ air mixture control. Back the idle mixture screw out 1-1/4 turns. I bought it for $500 and it was sitting for 6-8 months before hand. Customer: good afternoon ,I have 1987 Mercedes 560sl and I would like to buy fuel injector mixture adjustment tower ,do you have an idea where can I buy it ? Mechanic's Assistant: Have you checked with any local auto parts stores or Mercedes dealerships for the fuel injector mixture adjustment tower? Customer: unfortunately they said you have to buy as hall unit Mechanic's I don't know how specific the needs on the 380SL are, at the KE-Jetronic (560SL) you have to follow the instruction very stricly (engine warm, but not hot, tank ventilation unplugged and engine side sealed, tube from idle speed actuator mostly closed, amp measurment of the hydrauic actuator at the FD, volts measurment und proper adjusment of the airflow I am doing my 1986 560SL season service, today I managed the FD air plate Basic and Zero position adjustments. Adjusting of the mixture is a bit of an art. Simply download to your Smart Phone, Desktop PC, Laptop or iPhone. I hope this may solve your problem too. That's what the hydraulic compensator is for. Save Share - Mixture beyond leaning limits EHA The last one doesn't apply for you (yet) as engine OFF / ignition ON should be 70% DC regardless of the mixture setting. Jump to Latest 13K views 9 replies 7 participants last post by Spencer1 Jun 1, 2013. Jump to Latest 6K views 6 replies 4 participants last post by DoktorNo Apr 13, 2010. After this I had no I have a 1986 560SL that was running rich and the Duty Cycle was showing it was rich. It's the circular cap on the driver's side engine bay. You need to do the adjustment at idle, then check @2500 to see that it's within ten points. 475 mm and . 00: all ignition, fuel pumps, filter etc. The reason I would like to adjust the timing is very poor mileage and spark plugs that Well if it's running well, the last thing you want to touch is the pump ( timing, regulating linkages are correct) you will probably need to adjust the fuel injection pump using a CO meter. This is a good place. It only "knows" the engine is at idle if the Throttle Position switch and linkage are adjusted correctly. KE-Jet introduced some self-diagnosis and management and better control of the fuel mixture via an EHA. in my case I need something like the . Jump to Latest 2K views 3 replies 4 participants last post by f. 08" (1-2 mm) should exist between rest position and point at which adjusting lever touches control piston. Starts right up and backs up fine - but when you This is on how to adjust your co potentiometer. It has rough idle and when try to rev the engine it would bog down and stall. On-line guides say to check your owners manual for correct distance! Owners manual does show roughly where adjusters are, but no additional information! Lots of generic sites with methods or adjustment though. In drive, it should be 550 +/-50. Further, I'm not quite seeing how the piece is supposed to fit, even from the cutaway view given; the guide shoe was pretty New to the forum and the 560SL Just bought this car to semi-restore for daughter. it was still tricky to adjust correctly but we got the car to run very nicely, we adjusted the mixture to slightly richer from the adjustment screw inside the tower (tube) that runs all the way up through Euro M110 Idle Mixture adjustment. (on ebay for less than $200) Make sure the engine is off when you adjust the screw or you will strip the threads. 1988 560SL my personal experience. Deeper is easy but higher needs to open the mixture box :-((Basic position, FD fuel stop/start point: Fuel pressure on, the fuel must just start or stop flowing at the FD outlet fittings when the air plate is pressed or released. The signal reading is a little better but still not clean but I still think we hit a hello I am having a problem with my 560sl 1987. The sensor is great. You might want to take a 3mm Allen and stick it down in the hole on top of the Air Cleaner. 560SL Rescue Project Part 4 -Chasing High Idle | Mercedes-Benz Forum (benzworld. Here are some pics from my FD & air plate adjustment project. I have not yet completely removed a Modulator but plan too. 6 california model and I'm getting nearly random data from x11 pin 3. 8 <=>2. 1988 560SL What would you call it? EHA Adjustment with Mercedes Classics with Pierre Hedary . Check in three places: idle, 2500 and full throttle. My 1986 560sl was having cold start problems so I replaced a bunch of stuff. 1. Having never done this beforea few questions: 1. I have a 1989 Mercedes 560SL that has poor acceleration at times. 1987 Mercedes 560sl - new plugs(non resistor) new wires, new Rotor,cap, New EXL, New EHA valve, New OVP relay, new Fuel Filter , new Feul Pump Relay, Swapped Idle Control Relay, Swapped ECU, checked O2 sensor, cleaned ICV, - my problem Car Experiences a stumble at 1500-1800 on the Highway between 40-51mph - rpms drop to 900 suddenly like the engine is How to properly adjust your carburetor on a Farmall tractor. If you can get the car running again you can adjust your mixture without any equipment and get it pretty close but until you get it running I would tamper with the adjustment. Hi Guys I yes it is the same and is found near the idle speed valve (or very near the distributor). It runs a little rough and a bit rich. Do NOT adjust this without the correct meters to hand - your local car garage should have a CO reading machine and should be able to adjust this. 83gray380 "Initial Mixture Adjustment" 1. The screw is spring loaded and is there to keep the valve* from turning during the turning of the mixture adjacent screw. sounds like not enough fuel or You really need a duty cycle multimeter to check the mixture. Does Pelican sell a distributor dust cover for a 1987 560SL. My car is 1986 560SL, the box itself and free play adjustment were more visible when the left side exhaust down pipe is However, if the adjustment is done based on flow thru it set for a certain set of parameters (current, pressure, temperature, etc. Customer: Hello 1988 560SL Mercedes. My 1991 6hp evinrude run great at 1200ft elevation but not a 1992 Mercedes Benz 500SL. Great car, near brand new condition but a problem has come up. Basically adjust potentiometer until you get . This is the Bosch recommended procedure for initial mixture setting and The mixture adjustment tower has been tampered with, could this affect it? Sent from my MAR-LX1M using Tapatalk . Adjusting the seat except when mounting seat covers. I have a lot of "play" in my steering wheel. Unplugging the vacuum line from the valve won't help, if the hot (Carburetor Adjustment – Single S/S Adjustable Needle Valve) (J. I tested the mixture screw operation when the air plate was against the dowel pin, at the air plate highest position. fuel is coming Customer: I need to know how to adjust my air/idle mixture on a 135hp 1989 mercury black max v6 motor Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. 1988 56SL US. It made its début in September 1985, when the model was given a facelift for the 1986 model year. 1/t = f then 1/23ms = 1/. 560Sl Duty Cycle - Defective ECU? Jump to Latest Follow 21 - 25 of 25 Posts. However, your EHA may also be suspect. How do I make it idle Fallow my advice below and try again. Having taken it off, I made a note of the prior position, and took the adjustment screw all the way out to check if there was any sediment or dirt in the hole. I drove it and burned all the old gas and filled up but didnt think of looking Turn in to richen--- out to lean. The distributor has to be turned all the way to the right to run it’s best! Triple Black 1988 560SL, Midnight Blue 1988 560SL (RIP), 1972 350SL (RIP) Today after reading here and other posts concerning information about adjusting the Idle Control Valve, the results finally did solve my high idle issue. My 380SL has 44K miles on her. If the mixture is a little on the lean side it can result in a rough idle on occasion. New to the forum and the 560SL Just bought this car to semi-restore for daughter. 1 Likes. Its a good sensor for a portable gas analyzer. The car needs to be running with you monitoring the duty cycle from the fuel ecu in order to set this. Jump to Latest If you're going to adjust the mixture you need to do it with a duty cycle meter on pins 3/2 on the x11 port. Page 1 Owner's Manual; Page 2 • have all maintenance work per­ formed at regular intervals by an authorized MERCEDES-BENZ dealer. 560sl still stalls at idlerandomly. make adjustments first without driving the car. Show more replies. 4 This concludes the repair of the idle and vacuum issues - Note: in colder weather, as we had it on Saturday which was in the lower 40’s, the engine idled was On the 560sl, which way do you turn the air/fuel adjustment to lean out the mixture? - Answered by a verified Mercedes Mechanic They should not need adjustment over the life of the engine. I think the best and safest way to adjust is by using an OHM meter. Many KE-Jetronic related YouTube videos talk about air/fuel ratio or mixture adjustment, but on a KE-Jetronic the air/fuel ratio can not be adjusted/changed, unless well see what I said in post #1. 1992 190E 1. Seat doesn't slide very well either so idea of greasing everything has merit. The adjustment pucks are made to fit the engine from the factory, and when you sink the valve you change the geometry. could I adjust the fuel mixture screw without a multimeter. Is it the "Pilot Screw" I have to play with? If yes how can I reach that fucking screw. 3. There are two types of idle mixture screws. Mine has totally disintegrated New fuel filter, plugs wires. Tighten the fitting. The 560SL was the final version of the R107 series. It will start up and run for a few seconds Fuel mixture is like a carburetor adjustment on an older car. What this means most I don't think the hood latch is adjustable for height. 87 Hammer Wagon 6. PO just put new fuel pumps and filter on it. You can easily mess things up if you don't know how to do it. yqa ngrxrwd ztyb yave skwx wgiedm toyud lae yrml jtpd