pushrods to long

Reply Subscribe

Thread Tools

Search this Thread

Oct 25, 2007 | 06:18 PM

#21

mrclean200518

Thread Starter

On The Tree

iTrader: (89)

Joined: May 2007

Posts: 121

Likes: 0

From: louisa

i have a pretty good amount of pre load on it with the pushrod checker on 7.350 the tick just starts to disapear at a 7.275 so i adjust it to a 7.350 and it is nice and tight but i can push the rocker arm down and feel the lifter cup colapse. it dont do that with a 7.400

Oct 25, 2007 | 07:31 PM

#22

Phil'sC5vette

TECH Fanatic

iTrader: (4)

Joined: Feb 2004

Posts: 1,074

Likes: 0

From: Tampa

Rarely do I hear of guys going under 7.40. Alot go to 7.425 to get rid of valvetrain noise if you have milled heads.

Oct 25, 2007 | 09:03 PM

#23

mrclean200518

Thread Starter

On The Tree

iTrader: (89)

Joined: May 2007

Posts: 121

Likes: 0

From: louisa

bigger pushrod would put more stress on the motor making it louder wouldent it it would give a nosie off like a coplased lifter or make a valve hit the top of the piston

Oct 25, 2007 | 11:03 PM

#24

Dan_the_C5_Man

Launching!

Joined: Apr 2005

Posts: 205

Likes: 1

From: Atlanta area, GA

Quote:

Originally Posted by mrr23

i was refering to valve diameter. he did say bigger and not longer. but, i stand corrected on the valve stem length. either way, as you stated, the pushrods are still 7.400" long, because he is using the LS6 cam.

That's cool, my dumb-butt typed "lobe center" when I meant "base circle".

Anyway, I think the original poster might seek out someone with a bit more experience to check his work.

Oct 26, 2007 | 07:17 AM

#25

vettenuts

TECH Senior Member

iTrader: (4)

Joined: Jul 2004

Posts: 8,092

Likes: 13

From: Little Rhody

Quote:

Originally Posted by mrclean200518

OK, if at 7.275 you get a tick when lifting the rocker and at 7.350 you don't, you are close to zero lash. Try 7.300" on the adjustable and check. If the "tick tick" is gone, then add 0.100" to the length for preload and you end up with 7.400" pushrods.

Reply Subscribe