Arp crank bolt keeps coming loose???
#5
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Is the damper spining? Mark it to make sure and pin it if needed. If the damper rotates counter clockwise it will break the bolt loose. I'd pin the crank and use a little red loctite. I know ARP wants you to use there lube, but it's not worth it if it backs out later (ask me how I know). When you need to remove the bolt you can heat it some to break down the loctite and it will come out easy.
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#9
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loctite is not really a solution to unproper torque, but i hope it holds. I would do the same if i didnt have access to a torque wrench that must be about 3-4 feet long in my shop
#10
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250 foot pounds of torque should keep that ****** in there. I had a stock one come lose on me several times. Finally took my torque wrench and cranked it down to 250 like a bear in heat. No issues after that
#13
Absolutely. ARP lube used here and no issues ever. Proper (manufacturer recommended) torque provides some degree of stretch on any fastener based on the material, diameter and pitch of the threads. The stretch is what keeps tension on the bolt and prevents it from backing out.
#14
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I never had a problem with mine for years with arp lube and torque specs, but after I spun the damper on the road course I decided to all a little insurance and pin the crank and use loctite. I think the ARP lube with a pinned crank would have worked fine, but doing damper on a vette is a pain (for what it is).
#15
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Ive torqued this thing proper every time, First time a new stock bolt and went for a test drive, when I got back the bolt was gone. Then used Arp bolt with lube, then went to the loctite.
Last edited by mr_biscuitz; 02-23-2011 at 09:50 AM.