Quote:
Originally Posted by THEFERMANATOR
Yep, sounds like some broken rings. Problem is the newer 96+ metric hyperautic pistons seem to crack a lot more so than the early style cast pistons did when run hot. I've scrapped out a few, and the 96+ engines seem to have cracked pistons in them when run hot whereas the early cast pistons would be fine.
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Ugh. Never thought about cracked pistons. Figured that since I still had compression of 75 and above on the bad cylinders that I had not melted a hole in them... One more thing to look at. Still, with the pistons out to look at the rings replacing the piston itself should not be a problem.
Now it gets down to the "do I do the necessary work on the present engine or do I do a transplant?" question. <sigh>
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1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer
1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer
1996 V21 w/1993 200HP Mercury on a Shoreline Trailer
All towed by a 5.7L Hemi Durango.
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