5.9L 24V Performance Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps Related To Performance And Longevity

ARP Head Studs

Old Aug 30, 2009 | 08:51 PM
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rodneydiesel2's Avatar
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Default ARP Head Studs

Just Put in a new set of ARP Head studs. Torqued and retorqued 4 times like instructions said. Do these need to be retorqued after the engine has been heated up?
 
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Old Aug 30, 2009 | 08:56 PM
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yeah run about a week of normal driving and do it again.
 
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Old Aug 31, 2009 | 08:51 PM
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well I would say easy driving. As "normal" depends on the person. I wouldn't trust my "normal" driving on a new set of studs.
 
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Old Sep 1, 2009 | 09:01 PM
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The studs don't really tend to stretch or loosen up. Re-torquing is usually saved for when doing rings and giving the rings a chance to seat. When I did my studs I didn't re-torque them until recently and then I took the torque up to 140ft. lbs. Also, I hit 75psi boost within the first week of having them in.
Sean
 
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Old Sep 1, 2009 | 11:15 PM
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Originally Posted by sstockton
The studs don't really tend to stretch or loosen up. Re-torquing is usually saved for when doing rings and giving the rings a chance to seat. When I did my studs I didn't re-torque them until recently and then I took the torque up to 140ft. lbs. Also, I hit 75psi boost within the first week of having them in.
Sean
if they held up; that's great... but i'd be abit pedal shy for awhile; atleast until the truck has a good weeks worth of heat cycles and a retorque
 
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Old Sep 1, 2009 | 11:58 PM
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I installed my ARP studs drove 60 miles and entered a sled pull
8000 miles latter I still haven't re torqued and don't plan to.
 
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Old Sep 2, 2009 | 12:07 AM
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Originally Posted by Hummin Cummins
I installed my ARP studs drove 60 miles and entered a sled pull
8000 miles latter I still haven't re torqued and don't plan to.
i guess i'm just cautious; i wouldnt like to make a hobby out of replacing headgaskets so i think i'd do everything nice and gingerly; then put my foot through the floorboard
 
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Old Sep 2, 2009 | 12:25 AM
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I agree it's not worth the mess I did a week of easy driving no boost over 25psi then had them re-torqued. They moved a lot but then again it was o-ringed too.
 
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Old Sep 2, 2009 | 01:15 AM
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i torqued mine about 6 times befor i ran it, ran it for close to a week the torqued them straight up to 155ft-lbs, hit 60psi all the time with no issues
 
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Old Sep 3, 2009 | 10:50 PM
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If I retorque them iguess I need to do them in the right order like the book says? I didn't do anything to the head. Used same head gasket that has only been on that engine for about 6,000 miles just took out one bolt at a time and retightened.
 

Last edited by rodneydiesel2; Sep 3, 2009 at 10:53 PM.
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