LSA engine smoked and scratch behind flexplate
#1
LSA engine smoked and scratch behind flexplate
So i was at a roll race event with my newly tuned 2013 CTS-V, the car was running fine and with no issues, at the first race in the event at 4th gear the boost dropped from 15 psi to 9 psi and smoked. When i stopped there was an oil leak. The car drove fine and everything. When the engine was pulled out pistons 4 and 6 were damaged. But there was a scratch at the back of the block behind the flex plate. The block looks fine except for the scratch behind flex plate. Can i just grind it off and reuse the block?
Thank you
Thank you
Last edited by LS1TA76; 01-07-2019 at 12:24 AM.
#2
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That's also behind the rear cover. There must have been some foreign object get caught between the crank and the block. The engine builder didn't find anything in the else in the tear down? Could be something simple like a washer. Are all rocker arm needle bearings accounted for? That rear main bearing isn't looking so hot either.
#4
That's also behind the rear cover. There must have been some foreign object get caught between the crank and the block. The engine builder didn't find anything in the else in the tear down? Could be something simple like a washer. Are all rocker arm needle bearings accounted for? That rear main bearing isn't looking so hot either.
#5
Crank thrust is flawless. Nothing on it. My main concern is if i can reuse the block or not
#8
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I would clean up the gouge and reuse the block. Probably wouldn’t be a bad dea to check for cracks in that area either.