sensor plate height adjustments

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[@zenjamin6262]

HOW CAN YOU NOT LOVE THIS GUY ! BETTER YET HOW CAN YOU NOT SUPPORT HIM ! I have tried to explain this to people so they could do this themselves... now I can send them this link ... thank you so so much ! Keep these cars on the road !

[@123superpoop123]

Just got my 1982 380sl idle fixed because of this video. 7 minutes of time no more jumping at stop lights! Thanks

[@tonyreyes9969]

On K-Jetronic Downdraft-flow design of the air-flow sensor. If the sensor plate is positioned too high, an adjustment can be made. To do this, drive the guide pin for the leaf-spring-stop deeper (as mentioned on this video ) using an appropriate size pin punch and a light hammer. CAUTION: Make this adjustment very carefully so that the guide pin is not driven in too far. Be absolutely sure to avoid repeated adjustments in both directions because this can loosen the press fit of the pin. A serious engine damage can result if this pin should fall out. I hope this friendly reminder helps. I am a big fan of this channel. Very technical and informative in many ways. All the best, cheers!!!

[@johnzito125]

I took your advice and adjusted the throttle plate via vacuum gauge on my 80K mile 1990 300Sl. I used a port right behind the TB that goes down to the trans modulator I believe. Car has never run smoother and more responsive in the 8 years I've owned it. Freakin amazing. I haven't even checked the duty cycle because if it runs this good who cares what numbers are on a meter. Thanks alot. Smoothest idle I've ever had and power right off idle and through the rpm range.

[@bobsmith3055]

Best video on this I’ve seen!!! Hopefully this allows me to fix my no-start condition as previous owner turned the mixture screw wildly out of whack

[@doca8792]

You’re the best Just did this on my 68kKM 190e 2.3-16 and it’s sooooo good now

[@sergiop2207]

Thank you so much Pierre for sharing this valuable information!! God Bless you!! Regards form Guatemala!!

[@mariocaja3279]

Thank you, Pierre!!!

[@anthonytsui7821]

thank you for the tip, be the best mechanic

[@saadalghamdi3203]

Thanks for this .

[@grantbellinger7403]

Wonderful thank you

[@robertbrooks3934]

Thanks!

[@jjlily599]

You are a helpful young man

[@Her_Wilde]

Thank master 💪💪💪

[@vijaywaingankar8352]

Good job sir...

[@ceecee8429]

Thank u very much

[@josephhertzberg2734]

Dear God, thank you!!

[@lucasjampolsky9038]

Pierre, where do you like to measure vacuum from? would one of the vacuum ports on the ends of the intake manifold work?

[@runelarsen5769]

Thank you for the video. I have KE-Jetronic. If I ghange the free play on sensor plate from 2.0mm to 1.5mm will that change the volt on potentiometer. (0.7v)?

[@zilizopendwa4644]

Insightful video, thank you! what do you do if the 3mm adjuster is stuck? Can you replace it? or do you have to replace the whole sensor unit?

[@salehudinification]

nex vidio can ur show how to open flip amd seting standard

[@Hellblazzer]

Hello. I've discovered your amazing videos while trying to interpret an issue with a w124 200e I'm probably buying soon. The owner says the mixture is too high and it gets flooded. And when they disconnected the return line and got it spilling to a container, it was ok. Is it possible to have the return line clogged? Any hints on what should I do? A 1989 200e with 122hp is a k ejetronic, right? Ot a kjetronic. Thank you very much in advance.

[@daveknowles2911]

Thank you for the channel. Have you ever have a the adjustment screw lock-up? Can no longer adjust and air flow flap binds up. No start, 1989 300te?

[@Johnathan_Waters]

Yes, replace the whole assembly if you cant free it up.

[@racistinfidel5118]

Can you explain the basic operations of the IAC and the Meter Plate controlled operation and the transition from idle to run?

[@davidkenney2053]

Is the adjustment made without the fuel pressure against the plate?

[@oscarvenegas2420]

Hi, would love to have my car my 89 560Sl tuned by you for optimal results. Have idle issues after car sat for 3 years, love your content.

[@cav4290]

Thakn you! On a KE can you do the "flow test" at the injector lines/distributor head by deflecting the sensor plate with the engine off and the fuel pump running?

[@thisisnightshop2037]

you can test to see if all of the plungers have fuel delivery

[@hermannweinzierl356]

You can tune with an oszillograph, 50% moving!!! for Ke.

[@ghassanwidad2523]

I have 380Sl 1985 I have problem when it is cold it is start directly but as soon as I push the gas paddle the engine stalls till it is warm then it is great what you think the problem . thank you so much

[@carloshumbertocazenavescaz4595]

My 300sl r129 ke jetronic air plate is not closing all the way up. It is any way to give more tension to the spring to force it to close the air vent plate? Thanks in advance

[@binagarten4667]

Ford uses the K jetronic have a something called a "auxillary air valve control unit" could you please do a video and explain how to if it possible adjust this? Many thanks in advance.

[@jikian1]

Do you have a video of how to replace a Fuel Distributor Air Flow Meter CO Mixture Adjustment screw for a 1991 300 CE?

[@edwardricho2661]

Just want to tell you because of your videos I was able to get my 1990 420SEL running today after replacing airflow plate assembly ……however the car runs poorly after the cold start injector stops, the car sat for more than 4 years before we purchased it and we replaced , fuel pumps ,accumulator,airflow plate assembly ( the original seemed to have restricted movement and causing an over fueling issue) new plugs,rebuilt fuel distributor, cap and rotor ,wires …..we also tested pressures between the upper and lower fuel distributor ( 4 bars separation upper being the higher pressure, we also did an extensive smoke test and believe all vacuum leaks are repaired. Can you steer me in the right direction on what we should check next ? The car has 32000 original miles we also checked several cylinders and all had 120 or better Please help

[@vitocarnazza9373]

how can i replacde the air flow adjusrtment screw ? i believe i damadged it by turning too much? possibly strpped the head of the allen

[@wesleybrubaker767]

1985 380SL why does the fuel tank under positive pressure when I remove cap, thanks Wes

[@muzac43]

Hi Pierre, My 88 w124 230e, won't idle and it had to start, it will run at higher rpm, this has been happening for sometime, I rebuild the KE Jetronic with new seals, new fuel injectors, new plugs, new distributor cap. Can you help with improving the idling, thanks

[@NimaMansouri]

I love you. ❤

[@goorgenta]

Hello i have been watching as many as videos as i can however my issue is not mentioned in any of them , when i turn the 3mm allen wrench i can never get 1to 3 mm free play , i think i have messed up and turned it way too many times and done some damage , please help ?

[@Uc9uE3pKsS6uQ]

ke-jet is my biggest nightmare

[@thisisnightshop2037]

Your biggest nightmare should be hfm SFI on an s600

[@muundashatimwene489]

Pls I Wana ask?is this wht people also call butterfly?can this be the cause of my car to mix fuel and engine oil if not properly udjusted?I have a w124 mixing fuel and engn oil bt mechanic says it's the butterfly issue I took it t hm bt just take few weeks moving thn it does the same again pls help me?thnk u

[@LilyoftheValeyrising]

Mine is a little sleepy! Doesn’t quite close all the way when engine is off. 80’ 450SL . Hmmm I’m thinking probably a good cleaning... I’m really hoping it doesn’t mess with my 20 MPG highway consumption. Fascinating and very interesting!

[@thisisnightshop2037]

When you say it doesn't close all the way do you mean the fuel delivery doesn't stop?

[@thisisnightshop2037]

If it's working well don't feed a bunch of cleaning chemicals

[@LilyoftheValeyrising]

Pierre Hedary thanks!

[@LilyoftheValeyrising]

Pierre Hedary I saw this part of the comments. The fuel does stop. It while the car is off its open a bit.

[@hojjatzare2483]

Hi, I'm following your videos everywhere. I need your help

[@towrnghrybear]

He could read me the owners manual - or the phone book.....WOOF!!

[@ace7821]

Remember doing this in 2004 when there was no KZbin and there was just common sense. Got the idle speed down to a quiet and smooth 600 rpm’s. How low can you go with the rpm’s with videos like this?

[@user-mg6cm8gx7f]

Hi Pierre, jumping the fuel pump relay is very difficult. Is putting a positive lead to the pumps not a much simpler way to ? Just a thought.

[@kalfoogaltmimi5043]

What are the symptoms of a malfunction? Engine Crankshaft Position Sensor Fits For Mercedes 560SL 5.6L

[@georgewells8344]

Have 1986 560 sl runs and idles bad sets overbite runs good for about 10 minutes what’s wrong

[@micmac9853]

when you say the air vane moves just enough to allow fuel in when starting how would this be related to the idle fuel hole just below the metering slit.i just read a manual saying something about how important the 0.6 mm recess on reinstalling the screw retainer on the plunger..i presume at 0.6mm the plunger just close this idle fuel hole..then as soon as vacuum pulls on the air vent( or fuel from the csi)the engine fires, and the correct co adjustment will be the position where the plunger is open on the idle hole but below the start of the metering slit..this may be key to my hot start problem give ive changed all except the fd assembly

[@mercedesclassicswithpierre1753]

Hello, Mic Mac and thank YOU so much for your question(s), we want to answer you as quickly as possible. By signing in our Patreon www.patreon.com/thomaspolk page and making a donation of $10 your are assured of a 24 hour email response from Pierre. If you are already a $10 member please mention along with your question.

[@wungabunga]

When you, and others, say 'free play', how exactly do you identify the point of deflection? I can't feel exactly where it is.

[@slopoke68]

hi , i replaced all fuel parts and my 84 380se and the rpms goes hi on an Idil around 15 1600 and stays there how can i bring it back to 900

[@pedrohenriques35]

Hi, good video. My problem is that the air flow sensor plate is not stable and that changes the engine idle. Some other times it get stuck down and the engine revs to 3000rpm. Do you know how to fix this?

[@tonyreyes9969]

Pedro Henriques: Sir what type of vehicle are we talking about?

[@vmlelectronics]

Once you've said to me that closing the fuel pressure accumulator inlet would make the engine stumble when changing speed; although I didn't made it I feel some stumble around 1800 RPM that ceases when I pump a little more, should it be the accumulator? Is it readable in a simple gauge attached at the fuel distributor inlet or the pressure surge is very fast for it? I thought about checking the potentiometer position too but get a little unconfident about doing it, as it doesn't have much clearance to move it while the engine runs. Thanks!

[@gusibrahim6961]

I have the very same rumbling at 1800 rpm. Now, I found out that the fuel pressure regulator is leaking badly at the vent nipple. I ordered new regulator so let's see if it will cure the dreadful stumbling!!

[@thisisnightshop2037]

I don't recall giving you the advice about the fuel pressure accumulator.

[@vmlelectronics]

@@thisisnightshop2037 Sorry, I would say that I've asked you "If I did It what could happen" and you talked about the stumbling, It was not an advice from you. In fact you've desencouraged me of doing It. I don't like to modify the systems, It was a curiosity about an emergency situation at the road side and certainly you'd never suggest kinda stuff. Regards!

[@vmlelectronics]

@@gusibrahim6961 I'll check mine but last time I saw It there was no leak, maybe It could be with lower pressure on it's spring...

[@gregmenego2200]

Hi there...very interesting. My 380E was running until I started messing with the air screw adjuster. How do I set it at default? (If u get my drift)Do I adjust it down until I hear the fuel flow ? Had it running with groping in the dark but very roughly....now she wont start even with priming.

[@bobsmith3055]

Ever fix your issue?

[@gregmenego2200]

@@bobsmith3055 Hi....yes. Eventually discovered my HT leads wr put back one position of to the right if u understand what I mean when I replaced them with new once. Fired up straight away. .

[@jikian1]

How do you adjust mixture of fuel and air when it is too rich on a 1991 w124 300 CE?

[@mercedesclassicswithpierre1753]

Hello, @jikian1 and thank YOU so much for your question(s), we want to answer you as quickly as possible. By signing in our Patreon www.patreon.com/thomaspolk page and making a donation of $10 your are assured of a 24 hour email response from Pierre. If you are already a $10 member please mention along with your question.

[@faizrahman7671]

at 4:27 you described the technique for K jet, not KE, but when u ended the description and said you would get more power off the line you said KE....DID you mean K Thanks bud

[@thisisnightshop2037]

Actually applies to both. If the air flow metre is out of adjustment then you will lose some power. If you could set it up for the smoothest idle you should have the most power

[@TheRvh70]

On my European '92 w201 1.8 I cannot press an Allen key into the tube that you show. It feels like there is a plastic thing blocking it. Could that be true?

[@sockpuppets7256]

i know in my 560sel w126 there was a ball bearing in the hole that was pressed in by mercedes so regular mechanics don't mess with it..i'm thinking maybe your car has something similar?

[@keithwhited-zw9zv]

My 1989 560 SEL has the same ball bearing blocking the adjustment port. But it’s running very rich and high idle. Should I remove the port and press out the ball?

[@mansdahlberg2613]

Please help. The plate feeling loose without resistance and it have been screwed too much I think so dont know how to get it stiff again and how much mm gap to start with.. what to do? :(

[@mercedesclassicswithpierre1753]

Hello, @mansdahlberg2613 and thank YOU so much for your question(s), we want to answer you as quickly as possible. By signing in our Patreon www.patreon.com/thomaspolk page and making a donation of $10 your are assured of a 24 hour email response from Pierre. If you are already a $10 member please mention along with your question.

[@daveknowles2911]

Did replace air/fuel adjuster twice. 1st& 2nd adjusters drilled out screws/rivets things? Second time messed up one of the threads of mounting adjuster to air flow body. So when I adjust I hold down adjuster, adjust, remove, and cover hole with duct tape. Vac. leak. I know 👎. But should work? Thanks again.🤗

[@andrewdrevdahl2329]

Got a 84 rolls royce 6.8 with k jet is it the same as benz?

[@johnconnor812]

Hey mate my sensors plate is rock hard even if I turn my mixture screw all the way anti clockwise it has heaps of pressure?

[@martinburke3755]

Hi, what were the symptoms (mine is staggering and choking almost) and did you get it right since?

[@faizrahman7671]

does all this apply to K Jet cars such as my 500 sel euro

[@faizrahman7671]

nevermind

[@eri197395]

Im have Rolls Roy 1982 silver Spirit Problem With The Air Flow i’m Donna no How To Cali Break

[@genesteele204]

Can I bring my 190 e to you for service ?

[@adriatikozoreanu8987]

Buongiorno

[@Ozkan_Ozturk]

so with the 3mm allen key, you don't press it down but just turn left/right to adjust the gap, right? you press "down & hold" to adjust the fuel/air ration? am I correct? (KE system)

[@taylorbushnell5838]

What was the answer?

[@martinburke3755]

@@taylorbushnell5838 Did you ever figure it out?? I tapped down the pin in situ today 2/3mm, that the plate is sitting nicely but it is so tense, no give hardly, stumbling and nearly backfiring so left it fairly frustrated, If I'm understanding the process, now with the engine off I can adjust it at the 3mm barrell without pressing down and that will give it the few millimetre free play, Then turn on the engine, KE jet will figure it out from there except for the finale when I press down on the 3mm allen and adjust the fuel air ratio.

[@taylorbushnell5838]

@@martinburke3755 Hey you have to push it down to make any adjustment. There is no other adjustment.

[@princexkhalik]

Man these bosh C.I.S injection systems are a pain....I have a 190E with the M103. my problem is the cars not starting it used to start and idle but loose power n die soon as you hit the gas peddle , so i got the fuel distributor refurbished and i replaced both fuel pumps and fuel filter now the cars not starting and im not getting gas to the injectors. so i disconnected one of lines going to the injectors and started cranking........Still nothing!! soo i have somebody try and start the car while i manually press down on the meter plate......still nothing. i can hear my fuel pumps priming when i turn the key.....and again when cranking. when i remove the fuel line going into the C.I.Severywhere so theres plenty pressure iv also replaced the fuel pressure regulator. and when i remove the return hose from the regulator nothing comes out at all, but when i remove the small skinny line that goes from the distributor to the regulator i get fuel....... i got fuel going into the regulator but nun coming out? literally plz help

[@mercedesclassicswithpierre1753]

Hello, Burko Media and thank YOU so much for your question(s), we want to answer you as quickly as possible. By signing in our Patreon www.patreon.com/thomaspolk page and making a donation of $10 your are assured of a 24 hour email response from Pierre. If you are already a $10 member please mention along with your question.

[@belisioglipet4655]

Mine is inaccessible, looks blocked by a ball bearing.

[@ace7821]

Sears? Where is that still in business?

[@Johnathan_Waters]

It looked like you were checking the centering of the plate with a feeler gauge, but then you didn't talk about it? You should mention that too!

[@thisisnightshop2037]

Yes I need to make a video about centering the air filter plate.

[@tonyreyes9969]

There is a special tool for cantering the air flow sensor plate available from Bosch dealership.

[@user-yk6ud6rp4u]

Друг а можно перевести на русский полезное видио но не понятно

[@keabot]

Never touched mine in 17 years 🤷🏽‍♂️

[@thisisnightshop2037]

If the car is running well you shouldn't have to

[@christophermarshall5765]

HAHAHAHAHAHAHAHAHAHAHAHAHA Great way to screw up the air/fuel ratio adjustment!!! Set this using a CO2 analyser!! With the engine running, the plate should be about 3mm depressed. With engine stopped, there should be ZERO gap. The steel bridge must never be straightened. The plate MUST move up to the rubber stop on the steel bridge.