This is coming from a Student who is going to school to get his A&P...

To answer the question about how long before having an A&P Relook at
your engine and co another compression check.. If I remember correctly
it should 150 hours of flight time to allow the engine to be run in and
allow the rings to reseat and break in properly.

A Lieberma wrote:
Newps wrote in
:

If it's passing the rings then it's coming out the breather line, not
likely to get better. Everybody thinks the rings move during
operation, no way. You don't just happen to get unlucky and have the
rings lined up at the annual.

Since he got the compression up to 65, I am willing to give it a go.

With this in mind, how many hours down the road should I get him to run
another compression test?

He did have me change the oil from 15 weight to 20 weight. Do you think
this will mask the problem any?

Allen