Bosch K-Jetronic Fuel Injector Removal Testing Resealing Replacement

Рет қаралды 22,908

Жыл бұрын

The holders and seals on the C.I.S. fuel injectors can be a major source of intake air leaks. How do you inspect/replace them? I will also show you how I clean and test fuel injectors for proper operation.

Пікірлер: 39

@doncorleon9 Жыл бұрын

What a way to get your mojo back. Watching old merc videos is what brings back my mojo. A mojoception we have here.

@Mercedessource Жыл бұрын

Thanks for the support.. :-)

@Fernando-Garcia0685 3 ай бұрын

I am about to install new injectors on my 380sl of 1983, and your video has been extremely helpful to understand way is important to check the play of the injector's seals. Thank you!

@jeffmac3071 Жыл бұрын

A great idea to have some fun when working on your Merc. Great video.

@AshleyWragg Жыл бұрын

This tutorial series is absolute gold! Thanks. Wish I was confident enough to try all this. I was fooled into buying a 1987 Audi 80 1.8S b3 66kw with what I believe is the same k-jetronik as yours... Its not running well, not starting well, lacking acceleration, and idling all over the place. I live in Bosnia and mechanics here don't want to touch it even though the body and interior is nearly immaculate. Thanks for making this series so clear and concise and easy to follow.

@ValladolidArde Жыл бұрын

you can do it bro

@RuperScooper 3 ай бұрын

Great tutorial I’m going to tackle mine many thanks 👍

@inovahightechltd Жыл бұрын

Kent,it’s either your boat or the Fine Untertürkheimer Lemberger mit Trollinger 🍷………, 👍🏻👍🏻👍🏻 Your buddy from Kansas

@Mercedessource Жыл бұрын

That is my boat and it is a rush.... In places I am running in 2 to 3 inches of water...

@pablodidell Жыл бұрын

Wonderful explain about it. Thanks a lot.

@rustyrobinson8027 Жыл бұрын

Thanks Kent

@vintage76vipergreenBeetle Жыл бұрын

Great information. 👍

@alexsims3716 Жыл бұрын

Kent, have you ever used Hoppes 9 gun barrel cleaner to soak and clean injectors? I know the FAA recommends it for some recip aviation engines. I have had success with it myself on these KE injectors.

@Mercedessource Жыл бұрын

Hi Alex, I am familiar with the cleaner but have never tried it on injectors. I will give is a shot. Thanks for the tip. Kent

@georgesand4629 Жыл бұрын

It’s time for KE jetronic videos

@SuperMAZ007 Жыл бұрын

I would be interested in a video that explains the KE-Jetronic fuel accumulator. I can't really remember if you did one in the past or not? The different types that are out there, what happens if it fails and what maybe the consequences for the fuel delivery system when it's taken out from the equation. I will say from a personal experience that the car will work without a fuel accumulator however for the long run it will start ruining other parts in the fuel system.

@theundergroundlairofthesqu9261 Жыл бұрын

For funsies, start with this video by Kent. It's a diaphragm and a big spring! CIS FID Fuel Accumulator Opened Up: You Won't Believe What's Inside! kzfaq.info/get/bejne/o6piiNWCuL3XqH0.html

@theundergroundlairofthesqu9261 Жыл бұрын

Also, start at the 8 minute mark of Kent's video, where he starts discussing accumulators: Mercedes Gas Fuel Injection Delivery Systems 1959 to 1991+ Options for Repair or Replacement kzfaq.info/get/bejne/hct_rJCqnLCnk2g.html

@theundergroundlairofthesqu9261 Жыл бұрын

The basics of "why" for the fuel pressure accumulator: it keeps the fuel in your injection system under pressure, and this is good for hot restarts. The increased pressure raises the boiling point. Early Bosch K/CIS (pre "-E") cars, you could drive them, get them hot, park them, then come back later and have trouble getting them started because the gasoline had turned into vapor inside the fuel lines. Known as "vapor lock." (Also a problem for suction fuel pumps on carburetted cars, etc.) Early CIS cars had smaller accumulators, then had new, bigger ones retrofitted to fix that problem, new cars got bigger ones. Kent in the second video I linked, I believe he said they got smaller again when MBz went to the two pump concept. Fuel pumps running create pressurized gas which goes into a chamber in the pressure accumulator, pushes against a diaphragm seal, and then, provided the seal is not old and dying, goes nowhere. The diaphragm moves against a sturdy spring and now, even if the engine is shut off, that spring pushing against the diaphragm creates pressure throughout the system. (Uh... unless some of your injectors are dribbling! This all assumes no leaks upstream.) I may have solved a hot restart problem on mine recently with the replacement of the accumulator. Or, I've got two to five other problems and that wasn't it, and am still on the diagnostic hunt! You know.... For now, I've got good starting, cold and hot.

@pablodidell Жыл бұрын

Would post a video or a picture about the vacuum sistem of this engine? 110, please!!!!! Like we're it goes tubes from warmer to the warming valve and distributor with 2 diaphragm. Thanks a lot

@runningsushioo Жыл бұрын

An Ultrasonic bath can help to clean them imho

@azmike3572 Жыл бұрын

The opening and ending scenes in the boat----what if a few hungry mosasaurs suddenly popped up? Fast enough to outdistance them? 🙂

@Peter_Riis_DK Жыл бұрын

It's pretty impressive you still have a full head of hair, Kent. 😉

@Mercedessource Жыл бұрын

You didn't look close enough. :-). Should I turn myself in to the hair police?

@Peter_Riis_DK Жыл бұрын

@@charlesphiliparthurgeorgep4653 Are you not King now? 😁

@snoopy5736 Жыл бұрын

My dads 190e has been acting up on cold startup. Im trying to figure out the issue

@runningsushioo Жыл бұрын

look at the ignition system, may want to get one of these if there is an issue, look up for 123ignition

@paulbaker6233 Жыл бұрын

The boat ride reminds me of low-level-flying..

@ftarucco Жыл бұрын

I'm looking to buy this kit! (injector, seals, rubbers and silicone caps) Please, make it available asap :) Regards from Uruguay.

@Mercedessource Жыл бұрын

The kit is available now: Here is the link - mercedessource.com/store/1977-1983-280e-280ce-280te-280se-280sl

@Peter-gi3re Жыл бұрын

That boat is a blast …… only thing is I would feel like I was ripping around in a race car with no brakes. Please be careful…….. maybe a helmet to protect all those years of valuable knowledge 😅

@yodasbff3395 Жыл бұрын

Nice boat, too bad you couldn't fit a Mecedes engine in there. 😬

@ianatkinson8464 Жыл бұрын

😎👍

@jellevr1983 Жыл бұрын

How to create your Mojo on the river 👌👌👌

@dragonfarts4329 Жыл бұрын

My 89 300 ce coupe, cant find sleave seals??

@Mercedessource Жыл бұрын

I carry them on my website. Here is the link: mercedessource.com/store/search?keys=M103%20seals

@jellevr1983 Жыл бұрын

Where can i order a set injectors

@Mercedessource Жыл бұрын

mercedessource.com/store/1976-1980-450sl-450se-450sel-fuel-injector-replacement-kit mercedessource.com/store/1977-1983-280e-280ce-280te-280se-280sl mercedessource.com/store/1981-1985-380sl-380sec-380sel-fuel-injector-replacement-kit

@jellevr1983 Жыл бұрын

@@Mercedessource is the m117 450 the same as a 500?