Quote:
Originally Posted by Stretch
Sorry about getting that wrong.
I think the point is that you had a head gasket failure and it was "fixed" by magic goo. Doing a compression test as you suggest could (re-)highlight this problem again but to my mind it seems that you already know what is wrong.
I think it is time to remove the head and see what damage has been caused. I don't think you're going to get much further by adding additives and adjusting valves this time. I'm sorry to bring you bad news...
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Actually, no, I don't know what is wrong. Are you proposing that the head gasket failed on its own, which caused the loping/shaking at idle, and then that precipitated the coolant loss and overheating? That would make some sense. The car has 200k on btw.
The gasket sealant is irrelevant to the symptom I'm trying to diagnose- the shaking, since it was applied long after the shaking began.
In any event, a compression test should reveal something.