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In your experience, do you see the damaged cam to be the intake or exhaust more often than the other? Curious because the cams I’ve ordered, one has been shipped but the other is on back order. Hoping I may get lucky to get the one that may fix the issue first and not have to wait on the back...

I did the leak down test on 4 different rotations of the crank at TDC to make sure it was at least once done on the compression stroke. It failed miserably every time. I even kept air pressure flowing while slowly turning the crank and never found a position where it held any pressure. New cams...

Thank you for the help. Yes, I had a catastrophic valve to piston collision while traveling around 80 mph due to a timing change guide breakage. After the rebuild I am getting right at 90psi across all 4 cylinders. I’ve opened the front cover and valve cover to reset the timing chain thinking...

My 2013 Equinox will not start after an engine rebuild. The timing chain guide had broken causing valve and piston collision. I replace all pistons and rings, all valves, ground in the valves, replaced timing chain and guides, new camshaft sprockets, new head gasket, new exhaust manifold (the...