Does anyone know where I can get a fuel distributor piston spring? I managed to lose mine while trying to clean the fuel distributor (V8)

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With best regards

Al

* "Fuel distributor piston spring"! What are you referring to? There's no spring on a K-Jetronic plunger (what you're calling a piston?). Or are you talking about the spring in the line pressure regulator? That, along with some shims, is probably available in a pressure regulator kit from MB.
* Disassembly of the fuel distributor (splitting the halves), if that's what you're doing, isn't particularly a good idea. The major parts are lapped in and precisely assembled, something you're unlikely to duplicate on the bench. Better to run a strong cleaner through it. Most likely whatever symptom you're trying to cure is caused by something else anyway. The fuel distributor isn't a very common replacement item (yet it gets blamed for a multitude of sins).

Hey there, thanks for responding.

I'm talking about this part. I did not split but in an effort to clean it the piston came out and so did the spring. I cannot find the spring.

__________________
With best regards

Al

* I got out a KE-Jetronic Bosch manual and looked for that spring on the central plunger. You're absolutely right! There it is. The Bosch manual says that "In some versions a pressure spring is used to assist this hydraulic force (line and control fuel pressures). It (the spring) prevents the control plunger from being drawn up due to vacuum effects when the system cools down." So the good news is that the spring is an engine-off assist, and that you could probably adjust out the pressure-effect difference, with the engine running, caused by the spring (if you couldn't find another spring).
* I would try to find a core fuel distributor off the same model MB. Tell the dismantler/junk yard/independent that you don't necessarily need a FD that works because you just need that spring. Then again, if your initial problem was fuel distributor related, a good used FD should take care of both problems. Don't forget the o-ring and the fact that you'll need to reset duty cycle (idle mix).

I may have one for a 380 , i'm not sure if it will fit your V8 what model do you have , also , I'm curious as to how you could take a picture of a spring that you can't find .

Hey there and thanks for your offer. The picture was taken from the web and is not from my distributor. I was fortunately able to find the spring while cleaning up the shop and quickly put it back in the distributor.

Thanks again.

__________________
With best regards

Al

glad to here that , i'm sure you went through some frustration until you found it .

Brian

I had to step away before i head butted something!

__________________
With best regards

Al

I know that picture...;-) Pictures detailing the complete tear down are available on my site.

Jonathan

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Jonathan Hodgman
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Enthusiast Service, Restoration & Tuning.
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Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines.
Mercedes Repair Atlanta

Yep, credit goes out to Jonathan who provides a detailed description of the tear down. One of the many times that his resourcefulness has helped me in the past.

__________________
With best regards

Al