Compression Confusion!!!!!!!!
Please could someone possibly shed some light on the fact in my escort cossie just after being re-built, on bores 2, 3 & 4 the compression was between 11 & 11.5 bar but 1 was 14. This was because after only about 8 miles, all the water had gone from the header tank into the oil, this was then making its way into 1 increasing the compression. On taking the head off again 1 had water in it (not a mixture just water), and there was no soot and they looked just as new. Also a cometic gasket was used and this has left an impression on the head, not around the edge of the bore, it looks like two 8's joined together surrounding the bores. The head was torqued down to the figures I was given with the engine. Is this usual for these gaskets to do this? it doesn't look right to me. Please help. (I'll put some photo's tomorrow.)
Too many posts.. I need a life!!
Joined: May 2004
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From: in the garage fixing yet another oil leak
it looks like you've got long studs - did you plug the oil feeds from the block to the head? did you fit the O rings properely on the studs?
When it first started it sounded fine, but after a few miles it sounded like it was on 3, when I stopped to check I saw the water was empty. Yes the (new 200) block is long studded, but I didn't fit them so I don't know about the O rings, sorry. By the oil feeds, do you mean the ones running through the middle of the block up into the head if that is the case the block was new and the head was skimmed and chemically cleaned.
that end piston has never seen a spark - it must have run the 8 miles on the other 3.
it looks like you've got long studs - did you plug the oil feeds from the block to the head? did you fit the O rings properely on the studs?
Originally Posted by pgt
it looks like you've got long studs - did you plug the oil feeds from the block to the head? did you fit the O rings properely on the studs?
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