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Old 08-10-2011, 06:01 AM
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Well I was running a tuning log went wot, the tires slipped and I hit 7400 rpm. Ticking under the hood, drove it home with noise getting worse. Pull valve cover and YT rocker one bolt has broken the other has backed out. There didn't appear to be any damage other then a bit of a nick in one rocker. The broken bolt I was able to un thread it. One of the pushrods has a little bend in it. So I picked up some new bolts and ordered push rods. I'm going to put it together to make sure that it is okay then do a leak down when I can get it to a shop. I was going to using a medium grade lock tight on the two bolts.
Any thoughts.
Old 08-10-2011, 10:46 AM
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It should be ok. I'm not sure about the YT's but on the Harland Sharp rockers I found that the snap ring retaining the bearings break in situations like yours.
Old 08-11-2011, 06:24 PM
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Did you remove the rev limiter?
Old 08-18-2011, 10:35 PM
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since i do alot of high revs while drifting. i opted for the lingenfelter lnc003 two step. ive herd alot about the harland sharps breaking also. i opted for arp hardware and i keep the revs right at 6600. did you recover the broken part of the bolt?




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