Broken Tella Terra... Again
Broken Tella Terra... Again Me and my wife went to get some dinner this evening and on our way home I heard a familiar ticking sound. I pulled the valve cover when I got home and found a rocker arm broke. This makes 2 broken Intake rockers and 1 cracked exhaust rocker.
Is anyone else having bad luck with these rockers?
Is anyone else having bad luck with these rockers?
I have beat the crap out of mine and no issues. Man that is weird I agree with post above to check for proper wipe and geometry. I did have to shim mine inorder for it to be correct. If I wouldnt have it would have put it in a bind and a failure would be inevitable.
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Cam is a custom grind Solid roller Cam motion 257/266 .649/629 112 on a set of Morel tie bar lifters. The rockers are shimmed to correct the geometry and get the wipe pattern where I wanted it. I'm running PAC-1521, We shimmed the springs are well but i cant remember off the top of my head what the seat pressure and open pressure ended up at. Ill have to pull the build sheet I did up on the heads. The springs are no where close to coil bind nor am I running into valve float.
To be honest with you, it appears that the rockers reached their fatigue rate and sheered.
To be honest with you, it appears that the rockers reached their fatigue rate and sheered.
Negative, It is custom Cam Motion ground on some of their milder soild roller lobes. FYI they are about on par with Comps LSL just a little more aggressive off the seat.
I've talked to a few people now and from what i've gathered they had a bad batch of rockers. These where purchased back in Late 09 when I had my LS2 H/C set up. I put 1300 miles on them before upgrading to the big motor.
You'd be surprised some of the **** people do on here.
