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Is it re-bore time?
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UKdave2002
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PostPosted: Thu Jul 26, 2007 9:24 am    Post subject: Is it re-bore time? Reply with quote

The Morris 8 engine smokes a bit when cold. The engine is coming out as part of the rebuild and amongst other things Iíll be able to inspect and measure the bores.

Is there a rule of thumb regarding wear and ovaling that you can use to determine if itís either re-bore time, or just a set of new rings required?

Dave
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Uncle Joe
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PostPosted: Thu Jul 26, 2007 10:51 am    Post subject: Reply with quote

Uk, my own rule of thumb really is for this. If I can feel a ridge at the top of the cylinder with my thumb nail, then its time for a rebore.

Before I send it away though, I try to get hold of the correct tolerances for the particular engine and carefully measure all the bores with an internal micrometer.

UJ
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