Crankshaft replacement
Thread Starter
Navigator
Joined: Oct 2019
Posts: 9
Likes: 3
From: Cape May, NJ
Crankshaft replacement
OK so back in December I purchased a 2012 C6 with the LS3 76,000 miles. I’ve put 4000 miles on the car and my oil pressure has suddenly dropped to 10 psi at idle and occasionally I get a crankshaft knock on start up for a couple of seconds. at 2000 RPMs I can hear the lifters chatter a little bit, and I can also see flakes of metal in the oil. My question is can you swap out the crankshaft with the engine still on the car? Or does the engine need to be pulled on the C6 to get the crankshaft out? I have not had the car up in the air yet so I am not sure what is removable and accessible. I will be taking it into the shop next Tuesday putting it up on the lift and checking it out.
Supporting Vendor
Joined: Feb 2011
Posts: 3,527
Likes: 885
2024 C6 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (track prepared)
2019 C6 of Year Winner (track prepared)
OK so back in December I purchased a 2012 C6 with the LS3 76,000 miles. I’ve put 4000 miles on the car and my oil pressure has suddenly dropped to 10 psi at idle and occasionally I get a crankshaft knock on start up for a couple of seconds. at 2000 RPMs I can hear the lifters chatter a little bit, and I can also see flakes of metal in the oil. My question is can you swap out the crankshaft with the engine still on the car? Or does the engine need to be pulled on the C6 to get the crankshaft out? I have not had the car up in the air yet so I am not sure what is removable and accessible. I will be taking it into the shop next Tuesday putting it up on the lift and checking it out.
Your original question isn't entirely invalid though because on two separate occasions I've replaced pistons out of the bottom of the engine while it was still in the car. The first time was a single one that had a cracked ring land and the second time was all eight after it was rebuilt incorrectly with half of the oil rings installed upside down.
