Dead cylinders 77 spider

Keep it on topic, it will make it easier to find what you need.
TheBreadMan27
Posts: 9
Joined: Tue Apr 27, 2021 10:09 am
Your car is a: 1977 124 spider

Re: Dead cylinders 77 spider

Post by TheBreadMan27 »

Nut124 wrote:
TheBreadMan27 wrote:Okay, to those who are curious this is what I've found (sorry it's been a bit) I took the head off and the head gasket is basically brand new and so are some of the other gaskets. The thing I found the most wrong is none of the shims are correct, not even remotely. The cylinders all had too big of shims so a lot of the valves are always open no matter what. My guess is the PO took off the cams and mixed up the shim cups. I ordered new shims to make them correct and cleaned everything else up. Nothing else looked wrong or bad so once I have shims I'm going to re-do a compression test to check my piston rings but it should all be good now. Thanks for all the help
This something that could have been diagnosed w/o removing the head, with a feeler gauge. Removing the head is not a minor job.

How did you figure out what shims to order?

Yea I realize that I just wanted to double check the head gasket. One of the shims was small for every spot in the cams so I measured off that one to find them all. Also just reassembled the whole head and such. Re timed it and adjusted the carb it runs great now, thanks for all the help
Nut124
Posts: 748
Joined: Wed Oct 25, 2017 6:39 pm
Your car is a: 1978 124 Spider 1800

Re: Dead cylinders 77 spider

Post by Nut124 »

Sounds like you know what you are doing.

Let us know how it turns out.
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