comp r lifter issue
comp r lifter issue i used the comp r lifter for my rebuild, and set the preload according to comp cams on hot settings, no more than a 1/16th of a turn, they told me they would chatter too. but the werdiest thing is, when the car has been sitting for awhile and i start it up, you cant hear a peep out of them, they are qiet and you can here my cam loping, but when the car starts warming up then they start chattering, what would make them quiet on cold starts and start chattering when they are warm
TECH Fanatic
Joined: Jan 2002
Posts: 1,205
Likes: 0
From: harrisburg, pa
Sounds like everything is expanding and loosening up...
I would try the recommended .008-.010 preload cold and see if that makes a difference..thats about 1/5 of a turn...but measuring is better.
I would try the recommended .008-.010 preload cold and see if that makes a difference..thats about 1/5 of a turn...but measuring is better.
TECH Fanatic
Joined: Jan 2002
Posts: 1,205
Likes: 0
From: harrisburg, pa
humor me...im just curious and its easy to do is the correct thing to do. Curious to see if it does anything.
Did you remove the cosmolene from the lifters with mineral spirits and soak them in oil before the install?
Did you remove the cosmolene from the lifters with mineral spirits and soak them in oil before the install?
What rockers are you running?
Originally Posted by jason5
i used the comp r lifter for my rebuild, and set the preload according to comp cams on hot settings, no more than a 1/16th of a turn, they told me they would chatter too. but the werdiest thing is, when the car has been sitting for awhile and i start it up, you cant hear a peep out of them, they are qiet and you can here my cam loping, but when the car starts warming up then they start chattering, what would make them quiet on cold starts and start chattering when they are warm
Originally Posted by SAM98WS6
Did you remove the cosmolene from the lifters with mineral spirits and soak them in oil before the install?
i'll try it and see, this will be the 4th time i have adjusted these, i have gone from 1/2 a turn, 1/8, and 1/16, and 1/16 queiten it the most, but its worth a shot to see what 1/5 of a turn will do., is it possible why it is quieter on cold starts because the oil sits there and thickens up
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo If this is a newly-rebuilt engine, with no runtime since the build, you're actually troubleshooting more than just the Comp lifters.
If that's the case, and the rebuild has only been run w/ the Comps, they're not likely the problem given that it's not responding to all the variations in preload you've tried.
So...how does your oil pressure look when it's at op temp and ticking? How comfy are you that the oil pump o-ring is righteous?
If that's the case, and the rebuild has only been run w/ the Comps, they're not likely the problem given that it's not responding to all the variations in preload you've tried.
So...how does your oil pressure look when it's at op temp and ticking? How comfy are you that the oil pump o-ring is righteous?
Originally Posted by SAM98WS6
You arent hitting the valvecovers are you?
Can you measure with a dial indicator .008"? That is the proper way
Can you measure with a dial indicator .008"? That is the proper way
