CC 1.6 RR set screw backed out at high rpm! 2x!
#1
CC 1.6 RR set screw backed out at high rpm! 2x!
As the subject says it, my #1 cylinder exhaust valve's roller rocker adjustment has been a nightmare. I've adjusted all the valves to 3/4 turn past zero lash, and I am using brand new Crane OE lifters and a CC 305 cam. On the Comp Cams rocker arms, I adjust the nut to zero lash, go 3/4 turn, then screw down the set screw tightly with a 3/16" alan key. I go WOT to about 6000-6200 rpm for a couple gears, then when I'm idling, I can tell by the tap that my rocker arm has come loose again. The set screw backs ALL the way out (to the very top of the nut). I am thinking I may have to replace the whole nut and set screw, because the threads on the rocker stud look fine. Any suggestions?
Thanks in advance,
JR
Thanks in advance,
JR
#4
Good idea shoebox, I'll try that next time... in the process I'll check the tips of the rocker studs. I'd rather not use Loctite because if something's wrong there, I don't want to mess up anything else in the process. In the meantime I'll cross my fingers and hope it doesn't break at the wrong time.
Peace,
JR
Peace,
JR
#6
The last guy that used threadlocker posted on here that he could not get them unlocked. I don't recommend that. The torsion lock of the set screw should work. Since you only have one that is not staying locked, obviously there is a problem with it, only.
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