Thread: Lazy Tappet
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Old Feb 22, 2007 | 05:57 PM
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RST Ski
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Originally Posted by SafeChav
Originally Posted by RST Ski
Originally Posted by SafeChav
Originally Posted by tabetha
Tappets can knock if bad enough, as clearance between cam and follower/valve head bang together but must be really bad.
tabetha
How can a cam follower of such small size make a "knocking" noise similar to that of a worn bottom end.
i had a tappet not moving at all once, after i changed stem seals, the valve spring tool compressed the lifter and it didnt return itself, when i started it up that one tappet KNOCKED very loudly, i removed the rocker cover n removed that lifter and kept crushing the lifter back n fourth in a vice untill it free'd up again, put it back to together n it was silent again.
I know what you mean exactly, but i wouldnt say that was a knocking noise!

If your having problems with the top end i would inpect the oil ways on the head, and remove the lifters and soak them in some petrol or thinners, you'll find the oil inside seeps after not very long
il give that a go
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