ARP crank bolt torque
09-28-2006, 12:41 AM
#6
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Since it was recomended to use the ARP lube or oil on the threads, head and washer, I couldn't really use loktite. I've had it on and off a couple times and I torque the pulley first with a used stock bolt to 240 lbft. then the the ARP bolt to 240 lbft., It won't come off 
.
Dan
.Dan
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09-28-2006, 05:09 AM
#8
I went through this also, no specifications with my bolt. Per ARP, 190 lb-ft with ARP Moly lube on the threads and the head of the bolt.
If you go to 240 lb-ft, since ARP uses 75% of material yield as thier bolt preload, you run the risk of yielding the bolt and it either breaking during installation or later during removal.
If you go to 240 lb-ft, since ARP uses 75% of material yield as thier bolt preload, you run the risk of yielding the bolt and it either breaking during installation or later during removal.
09-28-2006, 07:45 AM
#9
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Originally Posted by vettenuts
I went through this also, no specifications with my bolt. Per ARP, 190 lb-ft with ARP Moly lube on the threads and the head of the bolt.
If you go to 240 lb-ft, since ARP uses 75% of material yield as thier bolt preload, you run the risk of yielding the bolt and it either breaking during installation or later during removal.
If you go to 240 lb-ft, since ARP uses 75% of material yield as thier bolt preload, you run the risk of yielding the bolt and it either breaking during installation or later during removal.
Cool thanks! There was no info card with the bolt + washer
09-28-2006, 12:40 PM
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Originally Posted by vettenuts
I went through this also, no specifications with my bolt. Per ARP, 190 lb-ft with ARP Moly lube on the threads and the head of the bolt.
If you go to 240 lb-ft, since ARP uses 75% of material yield as thier bolt preload, you run the risk of yielding the bolt and it either breaking during installation or later during removal.
If you go to 240 lb-ft, since ARP uses 75% of material yield as thier bolt preload, you run the risk of yielding the bolt and it either breaking during installation or later during removal.
. I went to 200 lbft. I checked the threads last time it was out and they were not overly streched.Dan
09-28-2006, 06:34 PM
#12
I really think a lot of guys that have problems with the balancer getting loose is because of the balancer itself, in that the inner diameter doesn't have enough of an interference fit when re-used if it was marginal to begin with. Just a pet theory I guess.
