What do these compression #s mean?

[quk@isham-research.demon.co.uk (Phil Payne)]

In message <Pine.SUN.3.96.980427222758.17338H-100000@eskimo.com> Nathan Belo writes:

> Dry test:
>
> Cylinders
>  1       2       3       4       5
> 155     125     128     143     60
>
> 2 squirts of oil in each cylinder
>
>  1       2       3       4       5
> 165     127     200     170     90
>
> What the !@#$% is going on with cylinder 5?  Do I need a top and bottom
> rebuild?  Or do I have a bad valve at 5?  Ring job?  Is it better to just
> buy an engine from a junk yard and drop it in or rebuild?  Say it's just a
> bad valve!!

I've seen two of these.  Both have involved small water leaks from the
waterways through the head gasket right at the back of the engine.

One guy did an engine swap, the other is still driving around moaning:
"WHY ME???"

Theoretically, it's a rebore and oversize pistons.  And use a genuine
head gasket next time.

--
 Phil Payne
 Phone: 0385 302803   Fax: 01536 723021
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