Quote:
Originally Posted by 400 Lemans
Check the original pistons very carefully for cracks in the ring lands. Almost sprung for a re-ring job cause the bores were still decent but after another careful inspection i found three cracks on no. 7 piston. So since i had to buy new pistons anyway, i went ahead with .030 overbore and forged pistons. Some of the cracks are really hard to see. I used a magnifying glass to spot. From now on i run octane booster and 93 gas.
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You are all knowing. Yes, my #7 piston has a crack in a ring land too. How is it possible that we both had the crack on #7? Does that cylinder have weird thermal characteristics that would cause this or just dumb luck that it happened on that one for me. Then again, there might be cracks on other pistons too. When I found that one, I stopped looking closely at the others figuring I need to now go to plan B, whatever that turns out to be.
Today is my birthday, so I can't say this is much of a present. Then again, I haven't accidently hurt myself on this teardown, so I guess I'll have to accept that as the consolation prize.
OJ