My crank gear problem is resolved. So here is second question. Calipers on the lobes of a CC 564 lift cam says I have up to 14 thousandths variance in height. Comp Cam says 2 to 3 is maximum. Do you agree. Replacement time? The engine has very low miles on it. Probably less than 2000. Is this wear likely the result of improper adjustment upon installation or poor oiling? Insights? What the heck. Third question: Installing new hydraulic lifters with adjustable rockers. Before the lifters are pumped up, that means, upon initial installation and adjustment when I tighten down the adjustment stud, I have been going down until contact between lifter and rocker are achieved then adding an additional half turn. On fresh rocker I could keep turning until the spring in the lifter is compressed. Someone tell me how do you do it to get zero lash?