The principle and procedure is the same. 110 PSI is closer to normal on
a small engined car, but maybe still a shade low.
Lew
-----Original Message-----
From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net] On
Behalf Of Kendel McCarley
Sent: Sunday, May 25, 2003 10:44 PM
To: mgs@autox.team.net
Subject: Re: Piston rings or valve guides, how to tell?
Sorry, I'm talking about a 1275 engined Midget.
Lew Palmer wrote:
>The first step is to repeat the compression test. 110 PSI seems on the
>low side for an MGB. First measure the compression on each cylinder
dry.
>That will give you a base line. Then squirt some engine oil in each
>cylinder - a couple of teaspoons worth is all you need. Then repeat the
>compression test. If the compression goes up significantly, rings are
in
>order. If the compression is about the same the culprit is valves.
There
>are some subtleties and variations here, but this will at least point
>you in the right direction.
>
>Cheers,
>Lew Palmer
>=============
>What does frighten me is having to get into the bottom end of the
>engine, mainly because I'm running out of time before I take this car
on
>
>a thousand mile drive.
>
>How can I determine whether I have a ring problem or not with these
>engines?
>
> - K
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