Lifter?

[Forzfed]

My number 5 lifter keeps collapsing on me.  I was running low oil pressure and turned it up and it seemed to help.  Yesterday I did a quick blast, revving it to 5800rpm and no knock.  I then let off and it started knocking and I could here the lifter clicking away really load.  It has the comp roller lifter in it.


What do you guys think?  Change out the lifter?  Or could there be an oiling issue?  And if I change it out should change them all and put some morels in?

[Steve Wood]

would not be the first time.  Guess you could swap it with another one and see if the location moves  to eliminate the oiling wonderment.  Cheapest route would be to buy a single lifter.  Best would be to buy a set of Morels and show us how high you roll!  David probably has a few dozen spares in his garage.

[Forzfed]

That's what I thought Steve.  I've heard of comp lifter problems.    I just remembered that the morels are a different height than the comp, so I'd need new push rods.  Maybe I'll just put in a new lifter.

[Scoobum]

Dan had a couple of roller lifters that collapsed. We swapped 'em out for new ones. All's well.

[Forzfed]

Can I buy just one lifter?  And where can I get them from?

[Steve Wood]

I would call Comp

[Forzfed]

I see full throttle sells them in pairs for $83.00.

[Just a Six?]

Make sure you soak them in thinners overnite then stand them up & push the plunger down to the very bottom with a pushrod. Add a few more drops of Clean thinners & do it a couple more times. You will be amazed at the Crud that comes out! 
Then add the oil & same thing a few more times. Out of a couple sets from Comp I had & including the set I use now there was always 1-2 that were much harder to compress than the others. Forcing the plunger down was easy with a vice to hold them after I wrapped them up in a few layers of shop rags.
Having adjustable rockers makes it real easy to be sure they bottom out.

[Forzfed]

Thanks for the tip, Dave.  Never thought about cleaning them, just pumping them up.

[Forzfed]

Changed my lifter out, but I don't think that was the problem.    Oh well, now I have a new lifter.  Turns out the shims(?) on the roller rockers weren't installed right.  So the back ones were binding.  You know the metal washers or what ever you want to call them, separating the aluminum rocker from the steel shaft.  It was causing the valve springs to bind.

Car runs way better!  The tranny use to shift funny and now it shifts fine, don't know if that is because it was running on 5 cylinders.  And I did the valve seals, car doesn't smoke anymore on start up!

[Steve Wood]

Who cares?  It's running right! 

[SuperSix]

Whoo!