ARP Crank Bolt?
#1
TECH Junkie
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ARP Crank Bolt?
I'm about ready to install my ARP crank bolt, and luckily a saw a few posts with people breaking them or having issues.
I put the pully on, with the stock bolt and my impact cranked up.
So,
1) Using the stock bolt, torque to 235ft/lbs and remove stock bolt
2) Tighten ARP bolt to ????ft/lbs
3) ?
Could someone answer this, who has used ARP. Sounds like people tried to torque the ARP to the OEM torque spec and ran into trouble.
I put the pully on, with the stock bolt and my impact cranked up.
So,
1) Using the stock bolt, torque to 235ft/lbs and remove stock bolt
2) Tighten ARP bolt to ????ft/lbs
3) ?
Could someone answer this, who has used ARP. Sounds like people tried to torque the ARP to the OEM torque spec and ran into trouble.
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Good little dab of loctite on the end of the threads and hammer it on in with the impact. Never had any problems either. I dont really get crazy with it, just once it seats, let it hammer a couple times and go on. I do the same with the stock bolts too without a problem. I used the stock bolt with this method 6 or 7 times before I replaced it just because I had another one laying around and didnt want to push my luck.
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I have some of the blue loctite...I think I ran out of red. 242 or something like that? Or should I run buy more red?
Thanks for the help, my engineering side makes me paranoid sometimes.
Thanks for the help, my engineering side makes me paranoid sometimes.
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#10
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Yes, use the washer, pay attention to it, the curved side goes toward the bolt head.
The washer prevents contact/damage to the surface immediately under the bolt head (where the bolt's cross-section changes)... any damage/scratches in this area of the bolt may lead to a failed bolt.
The washer prevents contact/damage to the surface immediately under the bolt head (where the bolt's cross-section changes)... any damage/scratches in this area of the bolt may lead to a failed bolt.
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I'll prolly need this thread in a couple months and won't be able to find it.. Also prolly taking up a lot of space with all my bookmarked threads.
But I usually just use a 1/2" breaker bar and a cheater bar and just sock it down till I feel I'm gonna break the 1/2" drive snub. Did that a bunch of times already (using the big bar) and it hasn't failed yet. But I've ALSO got a BMFTW and I think I'll try using it this time.
But I usually just use a 1/2" breaker bar and a cheater bar and just sock it down till I feel I'm gonna break the 1/2" drive snub. Did that a bunch of times already (using the big bar) and it hasn't failed yet. But I've ALSO got a BMFTW and I think I'll try using it this time.