Roller Lifter Question
Thread Starter
Melting Slicks
Joined: Jan 2002
Posts: 3,293
Likes: 79
From: Jackson MI
Roller Lifter Question
I'm putting new roller rockers on and I noticed that SOME of my lifters seem to have a spring in them when I push down on the pushrod. When I tighten down the rocker arms should they have that little play from the spring in the lifters or should it be solid? Thanks
Burning Brakes
Joined: Aug 2000
Posts: 984
Likes: 1
From: Cincinnati OH
Re: Roller Lifter Question (mn_vette)
They all have a spring in them. The ones that feel "springy" have bled down, happens sometimes and makes it a little harder to adjust. When you determine zero lash, make sure that you have NOT compressed the spring at all before doing your "x" number of turns of pre-load.
Racer
Joined: Oct 2001
Posts: 465
Likes: 26
From: Hendersonville tn
Re: Roller Lifter Question (Vince Ivanc)
Ageed, if you adjust say 1/2 turn down from zero lash and come back to that same rocker later the pushrod will feel loose again. It doesn't take long for the lifter to bleed down.
Race Director
Joined: Oct 1999
Posts: 13,298
Likes: 14
From: Somers NY
Re: Roller Lifter Question (BryanC)
I've always adjusted my lifters with the motor running.. I'd back off until I'd here it ticking then tighten it until the ticking stopped & then go 1/2 turn more..
You have to be a little careful of oil spraying from the other lifters, but it can be cleaned up..
You have to be a little careful of oil spraying from the other lifters, but it can be cleaned up..
Race Director
Joined: May 2001
Posts: 14,165
Likes: 9
Re: Roller Lifter Question (mn_vette)
I've adjusted them with the motor running and without. Without here is what I do. Tighten the nut until you just barely start to see the spring compress, I'm talking 1/128th of an inch here. Then I back off half a 1/4 turn, tighten the center allen down, then tighten the nut as far as it will go, which is usually about 1/4 to half a turn back. This locks them so they won't back out as quickly. If you just try to tighten the allen nut with the outer nut already tight you'll never get them to stay.
[Modified by Nathan Plemons, 7:12 AM 2/24/2002]
[Modified by Nathan Plemons, 7:12 AM 2/24/2002]
Thread Starter
Melting Slicks
Joined: Jan 2002
Posts: 3,293
Likes: 79
From: Jackson MI
Re: Roller Lifter Question (BryanC)
Well, the car isn't in running condition at this moment so that makes it kind of hard.
What is "zero lash"?
AAAAAAAAAAAAAAAAHHHHHHH! My computer is smoking crak again! :crazy:
[Modified by mn_vette, 12:12 AM 2/26/2002]
What is "zero lash"?
AAAAAAAAAAAAAAAAHHHHHHH! My computer is smoking crak again! :crazy:
[Modified by mn_vette, 12:12 AM 2/26/2002]
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