Cascade Crew

91RSVert · Posted: Sun Jan 01, 2012 2:31 pm Post subject: Damn the roller rockers!!!!!!

Ive set these things 4 times now and they still keep coming loose. Even used lock-tite and they are rattling.

Back to normals I go. What a waist of 300+ bux.

chevymad · Posted: Sun Jan 01, 2012 2:55 pm Post subject:

Are they actually coming loose or is your valve train just noisey? or worse yet going flat.

91RSVert · Posted: Sun Jan 01, 2012 3:01 pm Post subject:

Coming loose. Some could be just that noisy.

I just read they MIGHT net me 3hp. Not worth the hassel.

chevymad · Posted: Sun Jan 01, 2012 3:05 pm Post subject:

If you have over 500 lift or fairly high pressure springs stock rockers wont take it. The rocker balls will gall and you'll even snap studs because of it.

I know you have lt1 cam.. but still whats the lift with 1.6s? and I dont know what springs you used.

Twilightoptics · Posted: Sun Jan 01, 2012 3:15 pm Post subject:

If they have poly locks, you need to set the inner jam screw better.

I've NEVER had a poly lock back off.

Also, better check that it's not the head stud pulling up. I had that happen. Acts like a loose rocker. Tighten the rocker down and a few miles later it's loose again. Look, and the stud is higher than all the others.

91RSVert · Posted: Sun Jan 01, 2012 4:15 pm Post subject:

Chevy, I'm only running 1.5 rockers. This exreamly similar setup had stock rockers for 2 years with no issues. It has a full manley valve setup.

Twilight, I did check the studs. I also used hi-temp locktight on them when putting in at 55lbs. (alumn heads)

Twilightoptics · Posted: Sun Jan 01, 2012 4:32 pm Post subject:

Ahh okay screw in studs. That's different :O)

Poly lock rockers or pinch nuts? Pinch nuts do wear out and can get loose.

91RSVert · Posted: Sun Jan 01, 2012 6:59 pm Post subject:

It has what I guess is poly locks. Has the center set screw?

chevymad · Posted: Sun Jan 01, 2012 7:19 pm Post subject:

Maybe I scared you and your being too gentle? I think Paul described how to tighten them in the last thread.

91RSVert · Posted: Sun Jan 01, 2012 7:50 pm Post subject:

I just flat didnt like this design in the first place. Ive never had luck with "double nutting" stuff Laughing

Ive held the nut with a wrench, and tightened the allen tell I swear it was twisting. Still not working.

Anyway I think I found some self locking nuts. which would you chose. This way I didnt waist some damn parts.

http://www.summitracing.com/parts/CRO-74523/

http://www.summitracing.com/parts/MOR-67110/

chevymad · Posted: Sun Jan 01, 2012 7:54 pm Post subject:

After you tighten the allen, you need to tighten the nut itself.. with the allen an additional little bit. People have used this style nut for eons.

One of those is to hold a stud girdle on, the other is for shaft mounted rockers.. neither will work.

91RSVert · Posted: Tue Jan 03, 2012 5:57 am Post subject:

Are self aligning rockers quiter then guide-plate rockers?

chevymad · Posted: Tue Jan 03, 2012 7:27 am Post subject:

I have a motor with self aligning.. I dont know what is making the racket. Tried 3 different sets of rockers, different pushrods, springs.. etc.. NOISE.. I hate it. I'll be taking it apart yet again soon.

rjmcgee · The Hammer Joined: 08 Jan 2004 Posts: 2328

91RSVert · Posted: Tue Jan 03, 2012 10:53 am Post subject:

Leejo2005 · Member Joined: 12 Jul 2009 Posts: 466 Location: Kennewick

With my ARP perma-loc rocker nuts I just turned the main body with a wrench to set preload, then held wrench while turning in hex screw to 'lock' it. Haven't had any issues with them coming loose.

As far as turning the nut to lock, I think there may be confusion with setting lash. Some engines where you set the lash with a flat blade then hold it and tighten the nut to lock it.

Dewey316 · Posted: Tue Jan 03, 2012 1:30 pm Post subject:

91RSVert · Posted: Tue Jan 03, 2012 1:41 pm Post subject:

Oh well, there off the car and on the floor in a pile.... Lesson learned.

Just like headers, 3rd set Ive owned and nothing but problems. Doubt I ever buy another set.

Twilightoptics · Posted: Tue Jan 03, 2012 2:03 pm Post subject:

LOL I gave you instructions in another post.

I have set these a zillion times and again the only issue is over tightening.

It really doesn't matter what you buy, if you don't follow the instructions. Now I read the polylock installation guide for the gold rockers and it says hold the nut and tighten the allen. That's not proper. Hasn't been for decades.

Re-read my post. Seriously. It's easy.

Go to zero lash. Tighten the nut to where you want it, then snug the allen.

Then hold the allen, back off the nut 1/8-1/4 (you'll get a feel for it.) And tighten them BOTH to your set lash point.

chevymad · Posted: Tue Jan 03, 2012 5:48 pm Post subject:

I think I tried to say the exact same thing. That is how you are supposed to set poly locks. Just about any good performance rocker is going to have poly's.