Thread: camshaft gear vs my timing cover

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some of the crome china built stock type covers do not fit so hot.did you check your top and bottom gear are they leve/ square if not you will have to fix this. if off no thrust button will stop this with a tin cover will just move .you did not say if you have a thrust shim under the top grear. you could add another timming gasket but then your button will not work with out some work .

so i got rid of the hitting problem. i used an aluminum timing cover. no mor hitting. now i have a bigger issue. #8 exhaust valve does not have as much lift as the other exhaust valves. it was starting to make noise after i fixed the timing cover issue. this is a # 7162 flat tappet edelbrock cam. i wanted a roller but this is how the top end kit came. this engine is driving me crazy. i will be pulling the intake tomorrow to check wear for a lobe worn off. it only has 2 hours of running time. this shouldn't be happening

Originally Posted by Jason383454

so i got rid of the hitting problem. i used an aluminum timing cover. no mor hitting. now i have a bigger issue. #8 exhaust valve does not have as much lift as the other exhaust valves. it was starting to make noise after i fixed the timing cover issue. this is a # 7162 flat tappet edelbrock cam. i wanted a roller but this is how the top end kit came. this engine is driving me crazy. i will be pulling the intake tomorrow to check wear for a lobe worn off. it only has 2 hours of running time. this shouldn't be happening

sorry to hear that . sounds like it wipe the cam .i have seen them go faster then that . i have built big blocks for many years it only takes one time .well for me four times over 20 years and many builds .never put flat lifter cams in big block chevys all roller cams solid or hyd