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Old 09-02-2019, 01:23 PM   #4
BRENT in 10-uh-C
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Join Date: May 2010
Location: Eastern Tennessee
Posts: 11,521
Default Re: No Compression in 3 & 4 Cylinders

Quote:
Originally Posted by SimplyCosmic View Post
Purchased a 1929 Tudor in May and have been replacing worn our parts over the summer. I am very much a minimal shade-tree mechanic, but I've been able to do a surprising amount of work on the A, including replacing the old and rust-filled radiator.

A couple of weeks ago it lost a lot of power and I decided to test compression with a basic kit plus a spark plug adapter.

Cylinders 1 and 2 showed 57 when tested, but 3 and 4 gave me a zero.

How bad is this? I mean I know it's not good, I just want to know how much crying and wailing I am in for. And what are my next steps?

Yes, as others have indicated, I would remove the head and look specifically at the head gasket. I too would guess it is blown between them. At that time, report back and we'll advise the next step based on your findings.
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