Good morning all,

I have a situation with my 1990 Mercedes 560 SEL (221,000 miles). In the process of restoring this beauty to its original operating glory, I have been chasing a series of fuel and mechanical issues. The final hurdle involved the fuel distributor. I purchased a used unit that was supposedly in good working order off of ebay. After having the unit put on it was discovered there was an excessive amount of fuel being dumped into the engines and cylinders.My mechanic cleaned up all of the excess fuel and I was supplied a replacement unit. After installing the replacement, the engine now has a knock. My mechanic mentioned that the excess fuel may have damaged the engine and that a replacement engine may be required.

My questions

1. Does this pattern of thought make sense?
2. Can the engine be repaired, or is replacement the best answer?
3. The transmission has lost reverse. Am i better to buy a replacement for both?
4. Does anyone have or know of a good replacement unit?

I would greatly appreciate any input that is offered.The car is in excellent shape inside and out, minus the problems mentioned.

Thanks for your time,

Ron
Richmond, VA

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