Probably the worst grenading I've seen in a SHO yet...

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SHOTIME

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I told them all I had spare pistons and some super glue...

I could make that work.
 

Blast7

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Hey, at least he can be one of the few to say he blew up a SHO engine. Oh wait...I think there are more than a few people who can claim that. :D
 

SHOTIME

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Blast7:
Hey, at least he can be one of the few to say he blew up a SHO engine
wavey.gif
 

drivinhard

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Std rod bearing width is about .057" I believe. On the SHO, once you remove this from the equation, the rod/piston travel .057" higher up on the stroke, which is enough for the piston to hit the cylinder head area around the CC. Keep driving the piston breaks apart, and the rod/pin are doing their own thing. Probably lost oil to those bearings, bearings took a vacation, piston started dating the cylinder head. Cylinder head won.

The motor I pulled out of the wife's 91 (bought blown up) was pretty much same deal, piston left the rod, pin went through the block, rod bent into an "L". Holes in the block, oil pan, main cap girdle was busted in 3 spots, crank seized, and the oil pan looked like a nuke went off in there. The crankcase vented so much junk to the intake, I literally found piston fragments and piston ring pieces in the intake surge tanks (honest to goodness).
 

Yamaha V6

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Ok, here are some of the bearings. Note the points on the rod bearings indicated. The bearing has been flattened extra-thin, with razor-sharp "flanges" up the sides, and the oil hole is smushed, almost closed off.

Of course, the other ones show copper also, but which came first, the chicken or the egg?

bearings.jpg


<small>[ October 07, 2002, 02:01 PM: Message edited by: Yamaha V6 ]</small>
 

93MTXSHO

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I have a question. Is that sensor on top of the block between the cylinder banks the knock sensor? Also what purpose does the hose serve? Just trying to satisfy my curiosity.
 

Lupo

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93MTXSHO:
I have a question. Is that sensor on top of the block between the cylinder banks the knock sensor? Also what purpose does the hose serve? Just trying to satisfy my curiosity.
The sensor is the knock sensor, and the hose is the crankcase PCV hose.
 

Denny

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OMG! That's horrible! :( WAAAAAAAAAHHHHHH!

Those are the bearings?!??! Those the little pieces of shit that killed my engine?!? :mad: bearings shoot squint
 

ArkanSHO

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Of course, the other ones show copper also, but which came first, the chicken or the egg?
I would have to surmise from those shots that the smashed bearing lost oil pressure from the loss of the pump or through a blockage of the oil passage. The lack of blackening on the other bearings would lead me to lean to the later. The copper would indicet the oil pump was to low on pressure or the mileage was real high though. I saw a duratech motor that somebody had left regular dino in for 21,000 miles that didn't look that bad by the way.
Really should be posted on Rotten.Com or molestedcars.com
 

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