" I recently rebuilt the power
" I recently rebuilt the powerhead on my 110 because it had low compression, and uneven compression. I miked the pistons and checked the cylinder dimensions when rebuilding and they were within wear limits. I therefore used standard rings. When I went to check compression after the rebuild all I can get is about 90 psi on each cylinder. The engine has not run for more than about twenty minutes total yet after the rebuild. (it seems to run fine). My question: do the rings need to "seat" themselves for better compression? I was expecting 100-110 psi. Any thoughts?
Thanks. "
" I recently rebuilt the powerhead on my 110 because it had low compression, and uneven compression. I miked the pistons and checked the cylinder dimensions when rebuilding and they were within wear limits. I therefore used standard rings. When I went to check compression after the rebuild all I can get is about 90 psi on each cylinder. The engine has not run for more than about twenty minutes total yet after the rebuild. (it seems to run fine). My question: do the rings need to "seat" themselves for better compression? I was expecting 100-110 psi. Any thoughts?
Thanks. "