If a camshaft carrier is bad, you would need to replace the cylinder head assy as cam carriers are cylinder head specific.
If you do not replace the cylinder head, you would have to test the bearing clearance for the camshaft journals. Install the camshaft carrier without the rocker arms first and tighten to specification. Manually turn the camshaft to test if it turns easily. It MUST.
Tightening sequence is not the main cause of you breaking the cam carrier. You did not tighten them evenly. You should be tightening them a few turns for each screw and ensure the carriers are seated correctly.
Tuesday, August 21st, 2012 AT 6:35 PM