IP Destroying Injectors, GP, and Prechamber? [long] - Page 2 - PeachParts Mercedes-Benz Forum

vstech · #1 11-17-2006, 04:13 PM

Quote:

Originally Posted by Tymbrymi

I don't have a compression tester, nor a boroscope. So I can't really tell just yet. All I can do is my best to get it running again and hope for the best

for what you have put into it so far, I would go to the nearest Harbor freight and get a compression tester. at least pull the PC back out, and look around in the motor for debris, and see if you can find a broken piston crown or something.
I bet your motor is a goner.
John

Dubyagee · #2 11-17-2006, 04:51 PM

I have seen injectors look like that with contaminated fuel (Someone dumped some unleaded in one where I worked. About 50% mix). And I agree on the GP still being in the PC when removed.

#3 11-18-2006, 02:15 AM

Quote:

Originally Posted by Tymbrymi

Put in the new injectors, and actually thought to poke around at the prechamber ball and it was loose. The clank/clink noise was that ball bouncing around in the prechamber... Wanted to see if it would run decent enough for my brother to drive while we waited for the prechamber and tools to come in. Fired it up and it ran just a little bit better. Thought that it wouldn't be great for the engine, but would be alright for a few days. He drove it for about a week, after which I had second thoughts and parked it.

About another week later (this Tuesday) prechamber tools finally came in. I replaced the prechamber, GP, etc. I noted that the injector's pintle was still intact (was worried the bouncing ball would have damaged it). Fired it up with new prechamber and it ran WORSE!!! It knocked really really bad, smoked like crazy, and rocked really bad as well. I thought that it was just all the built up crap from that cylinder not being run for a week. So off to the italian tune up! The knock slowly went away, but the car never really go

All I can say is

michael cole · #4 11-25-2006, 01:41 PM

those prechamber shots look familiar infact identical to several i pulled out of my 300sd about 10 years ago.damage is almost identical.never did figure out why this happened but it was suggested that use of starting ether could have led to this