Does your roller rockers & lifters make noise?

[TurboBuRick]

Got a roller cam and roller rockers. You would thik this would not make any noise. Sound like a loose rocker. It runs fine but I was thinking on running through the adjustment.
The motor was built for me, I did'nt set lash, the guy who built it did. He's out of buisness.

Anyone know how to set the lash on these?
Should I try to adjust?

 

[boostingbuick]

If you have a T&D shaft roller rocker then they my not be tight enough. I have mine set to 1 1/4 turn. Ran mine at 1/2 turn and they made noise. Rare, but the a lifter maybe bad.

 

[TurboBuRick]

If you have a T&D shaft roller rocker then they my not be tight enough. I have mine set to 1 1/4 turn. Ran mine at 1/2 turn and they made noise. Rare, but the a lifter maybe bad.

GN1 Champion 1.55 roller rockers. 1 1/4 seems like alot. I just came from the grage and mine seem to be set at like a 1/4 past 0. If I crank it 1 1/4 it looks like the valve opens.

 

[SWOOOSH]

If you have a T&D shaft roller rocker then they my not be tight enough. I have mine set to 1 1/4 turn. Ran mine at 1/2 turn and they made noise. Rare, but the a lifter maybe bad.

1/8 to 1/4 should be all you would need.
1 1/4 i would think the plunger would bottom out

 

[disco stu]

Roller cams are not silent. Mine always sounded like a sewing machine. I believe it is the tie bars clacking around. Got noisier with roller rockers. My lash was always 1/4 turn.

Now I run a solid cam. Makes my hyd roller seem quiet.

 

[boostingbuick]

Ithought the same. I spoke to mike at full throttle and he told me thats what to set it at. sounds like stock now. call him. can't hurt.

 

[GN/GTO]

I just installed a Comp Cams 218/218 roller with their Pro Magnum lifters. The way I was told to set them as follows, (I did this with engine out of car)prime the oil pump until the lifters pump up, you know they are pumped up when oil is dripping from rocker arm onto springs, crank engine until lifter is on the baseline, (lowest point of lobe/valve closed) tighten rocker adjuster until it is at zero lash, push rod gets tight then about a 16th of a turn. Comp says two thousands pre load. They make a little noise but no more than the 206/206 roller with standard Comp lifters I took out which had a lash of 1/4 turn.

 

[Blown&Injected]

Ithought the same. I spoke to mike at full throttle and he told me thats what to set it at. sounds like stock now. call him. can't hurt.

Mike told you 1.25 turns? That seems like lots of pre load; sure he did not say 1/4 to 1 turn?

My roller cam and rockers did not make noise until some lifters started sticking. I went about 3/4 turn past zero lash but because of how hard they pump up, I am thinking that 1/4 to 1/3 turn is more appropriate. There is a lot of motion within the lifters - lots more than 1.25 turns, but it seems like that would be enough to hold the valves open a bit.

 

[TurboBuRick]

Thanks for all the input. I am going to try 1/4 turn now and see how it sounds. If still noisy I'll try 1/2.

 

[Mike Licht]

I always use at least 1 turn on 853 lifters or they make noise. the plunger has more travel than you think and needs .030 or more to be quite
Mike

 

[m233roller]

IF the lifters are GOOD ONES !!! Mike is right on. Mine are 1 full turn and sounds nice. Some people think some of the clicking is a lifter when really some of it is the tie bar on the lifter.

 

[GN/GTO]

The lifters I am refering to are the Comp 885

 

[Mike Licht]

Comp 885 are designed as a race lifter they must be installed with .003 (which is almost none) preload or they will fail. They are going to make noise, they were never designed to be quite like the 853's The standard ones should have been at least 1 turn to get to .030 preloard where they are designed to run
Mike

 

[Blown&Injected]

What are the threads on the T&D's? With the Harland Sharp Roller Rockers, one turn equals about .052" of pre-load. I went with about 3/4 turn and that is a solid .035 on the high side but under .040". 1.25 turns would be about .065".

 

[Mike Licht]

Which is why we need to be using a dial indicator and not threads. FYI I have run the 853's at over .060 preload with no problems there is a TON of travel in them
Mike