arp head studs...check yours!!

[spoolme]

ok, so i made a pst a while back about my car smoking and shit wondering if i blew my head gasket. well tonight i took the valve covers off and i was going to retorque them and see if they needed it....well WTF!!! a couple of them were at like freakin 24ft lbs!!!! i torqued it to 80ft lbs last xmas. and a coupler were still at 80 but i torqued them all to 85ft lbs now. so i will see if that helps anything...

 

[IJ.]

I retorqued mine after 1000 km's and found a few not as tight as the rest.

Going by Cometic's info if new hardware has been used it should be checked after a few heat cycles, I've always done this out of paranoia but it was good to see it in writing.

 

[hot dayam mk3]

i'll sure retorque mine even though i torque it down to 90 just to make sure.

 

[CPT Furious]

Yes, I posted about this awhile ago. Mine had also loosened somewhat.

 

[empera]

yea i've been meaning to re-torque mine, even tho i torque them at 95-100lbs, got me paranoid now...

 

[malloynx]

hmmm, i thought studs were good to go.. i put mine at 100 ft lbs.. maybe this weekend i'll give them a check just to be sure

 

[figgie]

hmmm, i thought studs were good to go.. i put mine at 100 ft lbs.. maybe this weekend i'll give them a check just to be sure

they are actually

see i never have to retorque mine.

why?

simple I FOLLOW the instructions of ARP and actually measure the stretch after three torque downs. It should be within the guidelines that ARP set. If not. Torque down 3 more times until proper stretch is acheived. This is the part that I have seen no one ever do.

 

[lagged]

ive checked mine after 3 different uses and they have never loosend up.

 

[IJ.]

Ummm up there in my last post I said you need to retorque only if you have "new" hardware so if you've done a trial assembly and backed the nuts right out I guess this would be considered used hardware.

Scenario 1: Brand new stud kit, install torue to spec then after some heat cycles retorque.

Scenario 2: Old stud kit, install torque to spec and forget.

Scenario 3: Brand new stud kit, install torque to spec and forget and have a few in the middle back off a touch and suffer another BHG and wonder why.

I'm not saying it's certain this will happen but it's small insurance to do a retorque for the added peace of mind.

 

[figgie]

Ummm up there in my last post I said you need to retorque only if you have "new" hardware so if you've done a trial assembly and backed the nuts right out I guess this would be considered used hardware.

Scenario 1: Brand new stud kit, install torue to spec then after some heat cycles retorque.

Scenario 2: Old stud kit, install torque to spec and forget.

Scenario 3: Brand new stud kit, install torque to spec and forget and have a few in the middle back off a touch and suffer another BHG and wonder why.

I'm not saying it's certain this will happen but it's small insurance to do a retorque for the added peace of mind.

oh no what I am saying is that ARP recommends to install and reinstall 3 times and then measure for stretch. It has to stretch otherwise the heat cycling will do it for you.

 

[IJ.]

LOL this would make it #2: then

I do the ARP Rod bolts and Mains this way as there's no way I'm pulling the motor to do a retorque but have never done it with head studs.