ARP retorque questions

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blkram

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Apr 13, 2007
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I have recently had a o-ringed head installed, we did the initial torque down in steps up to 125, got the the truck up to temp then let it sit overnight, did another re torque and drove easy for about 500 miles 12lbs max, then did another re torque, I now have gone about 1000 miles and seen 30 psi by accident a few times:doh:, my question is I need to do one more re torque so should I back em all off again as done the previous times? or should I just pull em down to check for movement? I have always thought the correct way was to loosen each one and then re torque, however I have seen a bunch of guys post that they just pulled em down to make sure they didnt have any movement, I know im gonna get a few different answers but what do the majority think is the correct method? Thanks
 
I did 5 retorques [5 heat cycles] & torqued to 140lbft. I didn't loosen, just kept checking them.
 
I did 3 re-torques without loosening them and haven't had any issues. Only have about 7k on them right now though. Within the first 1000 miles, I saw 75psi boost once and decided to go with a smaller injector. Now they see about 45-50psi boost pretty much everyday the truck is driven.

Since then I've read a bit about line torquing though, and that is probably what I would do. There is a whole thread on it here somewhere if you search it.
Sean
 
Loosen, re-lube, re-torque. Anything else is just wasting time.

Paul
 
Thanks guys, that's what the machine shop that did the head told me this morning, so why do so many people opt not to re loosen then do the process again?
 
blkram said:
Thanks guys, that's what the machine shop that did the head told me this morning, so why do so many people opt not to re loosen then do the process again?
Click to expand...

Maybe they just want to double check to make sure they didn't miss any the first time
 
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