Crank bolt
Team Owner
Joined: Sep 2001
Posts: 23,283
Likes: 906
From: Lake Elsinore, CA
Re: Crank bolt (Mehfoud)
Yes and yes. It's a torque-to-yield spec. so a new one is required when you pull the old one.
FYI, ARP sells a reusable version.
[Modified by Patches, 3:49 PM 7/16/2003]
FYI, ARP sells a reusable version.
[Modified by Patches, 3:49 PM 7/16/2003]
Melting Slicks
Joined: Oct 2000
Posts: 2,726
Likes: 24
From: Freehold, NJ
Re: Crank bolt (Patches)
Yes and yes. It's a torque-to-yield spec. so a new one is required when you pull the old one.
FYI, ARP sells a reusable version.
FYI, ARP sells a reusable version.
Race Director
Joined: Sep 1999
Posts: 12,435
Likes: 918
From: CONCORD NC
Re: Crank bolt (Eric Fischer)
I would suspect the torque-angle is the same, but the bolt is made of a material that is below its' yield point at that spec. I think you still need to use a threadlock and the proper spec to keep if from backing out. Also, make sure you let the lock-tite set before running the engine. Trust me on this one!
Team Owner
Joined: Sep 2001
Posts: 23,283
Likes: 906
From: Lake Elsinore, CA
Re: Crank bolt (davidfarmer)
:iagree: totally with David. ARP supplies torque specs for all their hardware on their website or you can call them. The GM bolt comes with pre-applied loctite just like some of their other hw.
I would apply loctite to ARP's as well. Just like their other hw, the crank bolt is stronger than the stocker so it never reaches the yield point - it remains in the elastic range and returns to original length when removed so it can be reused many times.
I would apply loctite to ARP's as well. Just like their other hw, the crank bolt is stronger than the stocker so it never reaches the yield point - it remains in the elastic range and returns to original length when removed so it can be reused many times.
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Tech Contributor
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Re: Crank bolt (davidfarmer)
I think you still need to use a threadlock and the proper spec to keep if from backing out. Also, make sure you let the lock-tite set before running the engine. Trust me on this one!
Safety Car
Joined: Dec 2002
Posts: 4,010
Likes: 1
From: SE Idaho
St. Jude Contributor
Re: Crank bolt (SpinMonster)
When reinstalling the balancer, use the old bolt, tighten to 330 N.m (this sets the balancer on the crank), remove old bolt, install new bolt and tighten to 50 N.m then an angle of 140 degrees. Usually a special tool is required.
