Thread: bad lifter....

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Dumb question: How can you tell if the lifter is actually not pumping up? Do you have to run it without the valve cover to actually see it?

Quick answer..........A lifter that doesn't pump up will cause the rocker arm to make a lot of noise.

Originally Posted by Smiliesafari

Quick answer..........A lifter that doesn't pump up will cause the rocker arm to make a lot of noise.

even if you have the correct valve lash and preload dialed in?

Originally Posted by Gusaroo

even if you have the correct valve lash and preload dialed in?

look across the rocker arm studs if intake or ex the rocke nuts all should be about the same height .now if the one is making noise and its not loose then it could have a bad rocker arm this sound may go away and come back in has lash is taken up rocker arm under the valve stem will have a mark that looks like this ) in it this is wear from the valve tip and will make noise . but if the rocker arm nut is past all others then 4 things bent push rod. very bad valve job .bad lifter . cam is shot. last to go hand in hand

Thx pat, I always wndered about that