Generation III Internal Engine - LS1 cam bearings?
05-05-2012, 07:58 AM
Was at this show/meet a couple weeks ago and this guy mention that LS1's had problematic cam bearings. :confused: I've never ever heard that before, but it got me curious. I've been through so much research on these earlier LS engines and I've been in this game for a while now.. but I figured I'd ask.
Ideas? The only thing I can figure is if you're an idiot when installing a cam and nick every bearing when installing it. THEN you'd have a problem.
05-05-2012, 08:10 AM
I replaced mine for safe measure when I had the engine on the stand. When I looked at mine I could see that some looked like they were worn out and it worried me so I put another set in. I guess I should have done better research because after I changed them I found a post on here that said the bronze that was showing was normal as GM clearanced them from the factory. I am fortunate to have the proper tools to change Cam bearings myself and my motor was out so I figured it was a safe measure for my motor, but not everyone can do it, especially with the motor in the car.
05-05-2012, 08:33 AM
They are problematic, and it is a good idea to change them if you are rebuilding the engine.
My 6L was removed from the truck it was in because of low oil pressure, a result of worn cam bearings. And when I took my LS1 out of my car the cam bearings were worn out on it also.
I noticed that the cam bearings had the slightest wear (31k) at 12 o'clock, & at 6pm. It wasn't enough to cause me to change them.
I can see though, how the application of torque to the cam gear could cause this wear.
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