Yeah, have them attempt to do that. The new Comp R's aren't designed for that type of plunger retainment so it's not possible. Been there done that, sent them back, bought Morels.

Steves396lt1, yes they are hard to adjust but zero lash with a slight amount of preload is all you really have to do.

Bret

 

Thanks. What woudl it take to get the clips heat treated? Can a machine shop get it done. It cant cost that much?
My preload etc is done per there instructions. We shall see.

 

It's not necessarily that the clips weren't heat treated, it could be that they were not done properly. Trying to re-engineer the clips is a losing propositon IMEO (In My Engineering Opinion).

Trying to get the clips back to the condition they were prior to their initial heat treatment is more difficult than making a girl back into a virgin. The metal still remembers what was done to it especially if it was decarbed

Also, if you were to retreat the clips and they still failed, who's buying the failure? It's not worth the liability for anyone to try to rework them.

As designed, the clips are to retain the plunger from popping out of the lifter when it isn't loaded. If the plunger is compressed enough in use (which many aren't), it never hits the clip in use except during loft. I'd try to prevent loft here, not only for the clips, but because that would allow thE lifter to pump up, wouldn't it? If that held the valve open slightly you'd either have a built in rev limiter (the way the factories did in the 60's), or burn exhaust valves, and maybe break retainers. Bummer.

OK, so if the lifter is designed to run virtually fully extended where it really isn't a hydraulic lifter, but a pseudo-solid, the retaining clip needs to be strong, impact resistant and fairly beefy. I don't remember what the Morel's look like, but Ace might.

 

So these lifters pre load is actually set up to be psuedo solids , as they are loaded light and that causes the plunger to hit the clip. And since the clip isnt very strong, they tend to eventually break.
I guess its time to get some new lifters.

 

damn it. now im starting to think twice.....are there 2 designs for the Rs?i got mine as soon as they came out, threw em in, no problems.is it a later batch with QC issues?

if it's all comp Rs: do i want to chance it once a real cam goes in? morels might be better [if you get what you pay for is anything to go by!] but do i need to stay hydraulic bad enough to pay the same for what i would get a set of the triple throwdown Crower SR lifters?
[these are ?s im asking myself out loud, but i think are relevant enough to be discussed]
and if i drop the cash on morels for a new setup and it still goes into float, im assed out cuz i have to swap to SR.
i have a pretty light valvetrain and im not talking about putting a BGN cam or anything in, just speculating.

also i am not doubting the quality or ability of the morels, just whether it would be prudent in my application.




maybe i should guinea pig the Rs whenever i stab a new cam in just to see what theyll take.im looking for an excuse do an 18deg motor anyway.start saving for my hogans now i should be able to afford it just before they outlaw gas vehicles

 

If you've got an original set of Comp R's then you had better just get rid of them and send them to me.

 

If we could get an idea of dates etc that would be nice. Mine were sent to me from Comp Cams around March.

 

Comp R's went on back order for months about 2 years ago. Word back then was that there was no one to build the lifters and they were looking for a new company. So i don't know if any Comp R's made in the last 2 years are bad or if its only a more local thing. Mine were bought probably almost 1 year ago and were junk.

 

Thanks, That helps allot. How did your fail? Clips break?

 

Yeah a total of 4 of them were missing clips and 5 more had cracked or damaged clips. The first time i had my lifters adjusted they were probably wrong. I damaged a total of 8 of the Comp R's so replaced the 8 lifters and set them about 1/16 of a turn past 0 lash. When i ripped my intake off again to replace all the lifters with OEM's another Comp R had already blown up. This was probably in a total of 300 miles.

 

I called comp when my lifters went bad, talked to one person at customer service, and one person at the cam tech line.

Both said that they had never heard of anyone having a problem with the clips breaking.

 

Ya, but I bet they tell that to all the girls.

 

lo, nice one Denny.

The clip design now is much different than the previous c-clip design. The older lifters are great, but the newer design is the ones that break and there IS NO WAY TO FIX THEM! As the old man said, don't try to fix them, don't try and re-engineer something (this comes from one with 30+ years of experience) that's broke, plain and simple JUST DON'T BUY THEM.

This thing is a dead horse, there really ain't much to talk about here anymore.

Bret

 

Bret , it may be a dead horse to you, but sometimes there are other people who havent heard about this, and maybe have just jpined the forum. If you dont like talking about it, make a tech tip section in the forum and post it as you are a senior guy here. Then the horse wont be beat anymore.
I am just trying to assist allot of people that havent heard about this as CompCams isnt apparently going to help, and not everyone is on here everyday.
There are 3 people here on the island, including our one and only speed shop that had no idea of this. SO, it is nice to get all the data possible.
So, I am sorry for stepping on your forum.

 

It's not a problem, but if a shop hasn't heard of this problem maybe they should keep up with this stuff more and more. That's why we specialize in what we do. I had this problem with a customer over a year ago, I realize I might be in the loop more than most.

There should be a sticky about these things, true but in reality we don't need a thread on both advanced tech and LT1 tech about these things.

Your not stepping on anyone here, you and I have equal rights in this forum and country which is great, it should just be one thread IMHO.

Bret