too soon for hg retorque

[corewitz]

hey everyone i just got my motor started on sunday and i have had it heat cycled about four times, from sunday through wednesday i drove it to operating temp and cooled it down overnight, the car has about 5 miles on it so far. is it too early for a retorque with arp studs?

 

[drbowser3]

What torque did you go to, I have 3000 miles on my MHG with ARP studs. I haven't re-torqued them and dont plan on it, and thats running with 17psi. With studs I dont see the need. There are about 7 7Ms running in the area with arp studs that havent been retorqued, most with over 10,000 miles on them. But if you want too, I woul go a bit longer.

 

[Big Wang Bandit]

How much torque are yours down to drbowser?

 

[johnathan1]

With new or used hardware?

 

[drbowser3]

90 ft/lbs, I torque the sequence @ 60 ft/lbs, then thru the sequence again at 90, loosen till they spin freely, then run them back to 90.

 

[jdub]

90 ft/lbs, I torque the sequence @ 60 ft/lbs, then thru the sequence again at 90, loosen till they spin freely, then run them back to 90.

The ARP spec for studs is 81 ft/lbs using moly for lube...105 ft/lbs using motor oil. You DO NOT want to over torque.

 

[drbowser3]

Like I said above, no problems, and at least 7 7Ms running the same way. One running over 25psi....

 

[corewitz]

i got brand new arp studs, installed them and torqued to 80 pounds with moly lube, and have about 4 heat cycles with a cometic hg

 

[s383mmber1]

I gotta agree with jdub here.

 

[johnathan1]

retorque just to be safe...do you know the proper procedure?

 

[shaeff]

on new hardware, it is necessary to re-torque because even ARP studs will stretch to a point. after they've been heat cycled and re-torqued, they're not supposed to have to be re-torqued ever again, but why chance it?

it took me a beer and an hour and a half to re-torque... (while carrying out a full conversation with my friend, who happened to stop by)

-shaeff