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cam damage...big time.

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Old Oct 9, 2009 | 09:58 PM
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Default cam damage...big time.

well my motor let go a while back broke a valve spring, piston meet valve, cracked the cylinder wall/sleeve and then broke the rod.

well today I pulled the cam not expecting to see this...the lifters and push rods look 100% fine...I don't understand how this damaged occurred?













Chad
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Old Oct 9, 2009 | 10:04 PM
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Looks like that cam was used as a hammer before it was installed.
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Old Oct 9, 2009 | 10:08 PM
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The same thing happend to me. Broken valve droping in cyclinder, hamming in between piston and block. Long story short, total lose. Look at the bright side, time to upgrade. Good luck with you're next built.
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Old Oct 9, 2009 | 10:16 PM
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Originally Posted by SuperSam
The same thing happend to me. Broken valve droping in cyclinder, hamming in between piston and block. Long story short, total lose. Look at the bright side, time to upgrade. Good luck with you're next built.

oh yeah I knew everything else was busted but to damage the cam I just didn't think how it would happen.

got a 6.0/4l80E waiting to go in...PRC LS3 heads and now a custom cam

Chad
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Old Oct 10, 2009 | 11:02 AM
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I bought a GN parts car with a blown engine (threw a rod). The cam was busted into 3 pieces and the rearmost part exited the block and was jammed into the flexplate so hard it was bent to a 45° angle! Loose parts inside a spinning motor are a no-no...
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Old Oct 10, 2009 | 11:06 AM
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Originally Posted by S10xGN
I bought a GN parts car with a blown engine (threw a rod). The cam was busted into 3 pieces and the rearmost part exited the block and was jammed into the flexplate so hard it was bent to a 45° angle! Loose parts inside a spinning motor are a no-no...
wow! do you happen to have any pictures of that, sounds nuts!

Chad
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Old Oct 10, 2009 | 11:19 AM
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Originally Posted by Nimitz87
wow! do you happen to have any pictures of that, sounds nuts!

Chad
Yeah, but I'm vacationing in Colorado right now and those pix were "before digital" and are home in a drawer somewhere. I'll try and remember when I get home...
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