Camshaft broke in half

KillerofRice · Post by **KillerofRice** » Sat Mar 17, 2007 2:57 pm

I'm just throwing this out there. My neighbor just had a camshaft break in half on his 95 Grand Prix 3.1L. I don't know how a cam would be put under that much stress to break in half. I would have thought the timing chain would have snapped before the cam. My neighbor was a mechanic and he's never saw anything like this before. I just wondering if anyone knows what caused it possibly or if no one has never seen this before either.

zach82 · Post by **zach82** » Sun Mar 18, 2007 12:53 am

I've seen the lobes snapped off before and cracks in cams, but I don't recall seeing one broken completely through.

1988GTU · Post by **1988GTU** » Sun Mar 18, 2007 7:22 am

3100? Sure, it happens. No oil, internal coolant leak, high miles.

Post by **heavywoody** » Sun Mar 18, 2007 11:39 am

Yeah, I've heard of it happening too... usually a result of the lower intake manifold gasket failing.

Post by **Cliff8928** » Sun Mar 18, 2007 11:28 pm

It's a typical failure on the 3100. Has to do with how the cam is made. The new (3500) camshafts are made better.

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