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Anybody Have Problems With Threading Their ARP Crank Bolt?

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Old 04-13-2010, 07:10 PM
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Default Anybody Have Problems With Threading Their ARP Crank Bolt?

I cant seem to get my bolt to thread into the crank, my buddy couldnt thread his ARP bolt into his engine either. Im wondering if this is a more widespread problem.
Old 04-13-2010, 09:33 PM
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Do you have your old one? If so lay the threads over each other and make sure they are the same.
Old 04-13-2010, 09:50 PM
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yup, its an ARP issue. The thread on the ARP bolts are cut "sharper" if you will then the stocker. It doesnt want to thread in there at all. Ive put 3 of them in, and each time i had to re-tap the crank snout before even trying to put the ARP in. Then it went in with ease.
Old 04-14-2010, 01:36 PM
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Hmmm, I put a new ARP crank bolt in and never saw any of these problems. It threaded right in and fit great, just as you'd expect it to...
Old 04-14-2010, 01:38 PM
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I've never tried to put an ARP bolt into a stock crank but put one in my Eagle. It went right in without any drama.

I wonder if it has something to do with the factory thread lock.




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