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And who still uses the cork pan gaskets. Step up to the one piece silicon.
It at least has 20 hours left... Use emery cloth
Yea, cork on top of silicone. um wow...
Notice anything peculiar besides the trashed bearings?
Is the crank worth saving- if so how does it look?
Did a mega unobtanium crank demolish itself to save the inexpensive bearings?
Bores dont look trashed.
Cam looks like it might have worn down a lobe.
Scott, are you saying this thing had ample oil pressure but no filtering caused this damage? Either a long time running the same oil, high horsepower application (which I expect given the camshaft type and profile) or something introduced into the crankcase oil that sped up the process of destruction. Can we assume the rods were as bad or worse?
Did something finally fail or did he shut it down when the engine noise surpasses the header noise?
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This is a blown jet boat deal, and after seeing the curling of the main bearings, my only conclusion is detonation...big time. The detonation curled the bearings which them wiped the crank of any oil causing the bearing failure. At the same time, the cam gear was taking out the front of the block, which added more material to the mix. In the end, I found that the little phenolic valve in the filter adapter bypass was gone. The oil path was straight from the pump, across the top of the filter, right back into the engine. All that foreign material just circulated, taking things to their current state.
It's savable, but we're starting from scratch. The cyl's look good...the rings are trashed. The cam is OK, but needs a polishing. All in all, the damage is limited to the rings, bearings and crank, which has been replaced.
At least that's my take on it.
EDIT: I was writing this as Steel was posting. I pretty much knew what caused it. Just wanted him to explain it with out saying what caused! That is some serious ass detonation right there. He is lucky he still has a block!
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Last edited by gn7; 09-16-2010 at 09:57 PM.