It's my understanding that you can get by with compression that's a
little lower than specs, as long as the compression in all cylinders is
pretty close to the others. That being said, I wouldn't worry much
about 1, 2, and 4, but 3 is a major problem. My first guess would be
head gasket. You could do the rings while you're at it, but if you
don't want to get into that at this time, don't worry about them. Check
that head gasket before you do anything else.
-NORY
Don't assume that because you have found one problem, you have found the
ONLY problem.
'74 Midget & '71 parts car
'94 Ford Ranger
'86 Ford Escort
'89 Ford Probe
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2 cats (handiest shop tools around)
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