valvetrain noise
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valvetrain noise
ok i have just installed a set a heads and a cam the cam is 580 lift now i have a pretty loud ticking noise i think it is from the lifters but not sure what is the best way to tighten down the rockers becuse i have read all kinds of ways i not even sure if that is what is wrong but i have no other ideas i have 50psi for oil but out of ideas please help
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#11
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Im having a similar problem...I used a length checker but its telling me that I should have a 7.405" pushrod for .080" of lifter preload. SO I should have .075" of preload which is ok. It is still very loud and only after warm up. I am going to check the pushrod cups on my yella terras to be sure one didnt fall out and maybe measure my pushrods with a digital caliper and after that I may buy the 7.425 pushrods just to see if it make a difference.
#13
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Im having a similar problem...I used a length checker but its telling me that I should have a 7.405" pushrod for .080" of lifter preload. SO I should have .075" of preload which is ok. It is still very loud and only after warm up. I am going to check the pushrod cups on my yella terras to be sure one didnt fall out and maybe measure my pushrods with a digital caliper and after that I may buy the 7.425 pushrods just to see if it make a difference.
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i just looked i am using 7.400 push rods so you think i should get some new ones the specs on my cam is 225/229 .580''/.590'' and ls6 style heads 2.02'' / 1.57''/64cc anything will help
#16
FYI, I have adjustable rockers & have experimented with setting pre-load from 0.080" all the way to.125" on LS7 lifters, without causing any problem w/ the lifters. So don't be weary of using a longer push rod that results in a deeper pre-load, on your non-adjustable set up.
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i am going to try to adjust the rockers and see what happens what is the proper way to do this i have no idea all i see is tighten to 22ftlbs and that is it anything else
#18
You can't adjust stock rockers. Only way to change wipe pattern/lifter pre-load is w/ different length push rods. This is why many people in this thread have suggested longer pushrods.
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