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Originally Posted by LBL
Thanks for the reading, as much as I am disapointed, at least I know what the problem is and can move forward to fix it. This is my first engine rebuild and I was quite happy that I had no leaks, or knocks and it fired right up so as soon as I get those pistons out and fix the problem, I should have a good strong running engine. If it is just a couple of rings in upside down, am I okay flipping tham or should I use new rings on those pistons? Thanks again
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If it is upside rings , turning them over may not fix your problem. It could be a combination of two or three issues which will need careful measurement with engine shop micrometers and gauges.
Factors which may also be your problem are.
1. standard cylinder..... glazed bore.
2. standard cylinder.....bore shape is oval rather than round.
3. rebored.......+ 030 etc.....-poor hone ( wrong grit or hone angle).... cylinder still has boring marks in it.
4 excessive piston to cylinder clearance
5 incorrrect ring set for your application.
When you pull it down as its your first build ,it would be well worth a trip to an engine rebuild shop to have it measured.
Putting it back together the second time to have the same problem would do your head in.
Al.