Smokinnjokin
Well-Known Member
Gentlemen,
My tired 360 (smog, probably rebuilt but looks mostly stock) has a ticking sound coming from under the front passenger side of the valve cover, sounds like a lifter ticking. Gets better after a long drive (several hours at freeway speeds) but does not go away. I have done MMO in oil and gas to no avail.
I have the intake off and front end apart (fresh timing chain) so now is the time to address this. What am I looking for? None of the pushrods in the noisy area seem overly loose, nothing looks amiss with the lifters or cam. Rockers seem fine too. I don't want to mess with the valvetrain if nothing is really wrong. Is there a procedure to check each lifter in sequence? I assume that with the valve closed and pressure off the lifter, the pushrod should spin freely but have no slop, correct?
My tired 360 (smog, probably rebuilt but looks mostly stock) has a ticking sound coming from under the front passenger side of the valve cover, sounds like a lifter ticking. Gets better after a long drive (several hours at freeway speeds) but does not go away. I have done MMO in oil and gas to no avail.
I have the intake off and front end apart (fresh timing chain) so now is the time to address this. What am I looking for? None of the pushrods in the noisy area seem overly loose, nothing looks amiss with the lifters or cam. Rockers seem fine too. I don't want to mess with the valvetrain if nothing is really wrong. Is there a procedure to check each lifter in sequence? I assume that with the valve closed and pressure off the lifter, the pushrod should spin freely but have no slop, correct?