New motor, noisy valvetrain

[rob350]

I have the comp 212-212 flat tappet cam with the Comp 869-12 lifters. It seems that I have some valvetrain noise at idle/lower RPMS. I'v been reading around the forum, and a few people say that the comp cams lifters are noisy. I'm not sure if I was suppose to get new pushrods due to the bigger cam, but i'm running the stock pushrods and rocker arms. Is it possible my pre-load is incorrect? Any advice?

Thanks,

Rob

 

[Boost231]

im running the same setup as you. mine was noisey for awhile but after 3k miles or so its started to quite down

 

[mikestertwo]

It's possible you don't have enough preload with that cam. The base circle is most likely smaller. What is the valve lift on that cam?

 

[Boost231]

i dont have my cam card to post.

 

[ttaowner]

I have the comp 212-212 flat tappet cam with the Comp 869-12 lifters. It seems that I have some valvetrain noise at idle/lower RPMS. I'v been reading around the forum, and a few people say that the comp cams lifters are noisy. I'm not sure if I was suppose to get new pushrods due to the bigger cam, but i'm running the stock pushrods and rocker arms. Is it possible my pre-load is incorrect? Any advice?

Thanks,

Rob

i have same cam fresh motor 2k on it also noisy.sounds like the way your descrbing it.

 

[rob350]

Here's some info. on the cam on Comp's site-

COMP Cams - Cam Details


Are you guys running the Comp 869-12 lifters they recommend? Thats what i'm using.

 

[boostedbuford]

I have a 218 roller, and it sounds like a sewing machine- I only have about 300 miles on the new motor though. I figured that it's just something turbo buick owners have to deal with.