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Author Topic:   Poly Locks
Dirt Freak

Total posts: 430
posted June 28, 2002 02:23 AM
Got some polylocks today on the advice of a fellow racer to use polylocks on my rocker arms. Last year I just used the nut and the most it would loosen up in a week was a couple thousandths. This year with different heads I can't get them to stay tight. Now here's my dumb question. How do the polylocks go on there and whats the best way on adjusting and locking things down. Looks to me there are two ways it could work and I don't really know which is right. I really could use some help on this before Sat.
P.s its a solid cam if that matters any.

Dirt Maniac

Total posts: 174
posted June 28, 2002 07:53 AM
First of all, you need to have the ends of the rocker studs ground flat for the inner allen set ***** to tighten flat against. Quality studs like ARP and others are good to go out of the box, but stockers and cheapos need to be ground. Otherwise there's not alot to it; set lash with a wrench in one hand, and tighten the allen with the other. Use the correct allen socket and a 3/8 ratchet instead of a small allen wrench which may not give you enough leverage to tighten enough.

Dirt Full Roller

Total posts: 67
posted June 28, 2002 12:16 PM
i agree with rangerover on the poly locks thats how i do it also and as far as adjusting the valves i go bye my cams spec sheet some times the have same tolerances on intake and exhaust then some has dif from intake and exhaust all u have to have is spec sheet for the cam and a filler gauge thats how i set mine and never had any problems.hope this helps

Dirt Full Roller

Total posts: 57
posted June 28, 2002 09:34 PM
Tighten allen set ***** then turn the polylock with your 9/16 wrench. Trying just to tighten the allen set ***** will always come loose. Find another racer to show you how to do this if that doesn't make sense. Any engine builder or knowledgable racer will know how the show you(usually easier to demostrate this than describe it)

Dirt Freak

Total posts: 247
posted June 29, 2002 11:18 AM
Something nobody has mentioned is that the cam could possibly be going flat or if you have stock press-in studs they could be pulling out. Just something to check !!

Dirt Freak

Total posts: 430
posted July 01, 2002 12:46 AM
Yeah Birdcage the first time I tried to do it with just the allen set s.c.rew , then I talked to a guy at the race shop and said pretty much what you said and it works now. Darn things should have instrucitons. Thanks

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