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| Forum name | Performance/Engine |
| Topic subject | Best way to retorque head w/ ARP studs |
| Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=61158 |
61158, Best way to retorque head w/ ARP studs
Posted by etx, Oct-10-03 07:55 AM
I seem to be leaking a very little bit of oil from the back of the HG. I am going to retorque the head this weekend. The first time i followed the order in the overhaul manual, and torqued them to 60 ft/lbs per the instructions from ARP. I want to torque them to about 90 ft/lbs this time around. So should I open the valve cover and just torque them to 90 ft/lbs in the order illustrated in the overhaul manual? Or should I remove all the nuts on the studs and start over? This is my weekend project, along with finding that wicked vibration above 3.5k rpm. :( thanks guys!
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61179, RE: Best way to retorque head w/ ARP studs
Posted by WickedESi, Oct-10-03 10:52 AM
Definately don't torque them to 90 lbs, you'll warp the head!
You will have to re-do it to get an accurate seal.
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61183, RE: Best way to retorque head w/ ARP studs
Posted by Dave_FL, Oct-10-03 11:30 AM
The ARP head bolts are supposed to be torqued to 100ft/lbs if I remember correctly. I think its actually 105. Thats what they are made for.
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61184, RE: Best way to retorque head w/ ARP studs
Posted by Dave_FL, Oct-10-03 11:30 AM
The ARP head bolts are supposed to be torqued to 100ft/lbs if I remember correctly. I think its actually 105. Thats what they are made for.
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61185, RE: Best way to retorque head w/ ARP studs
Posted by Kirby, Oct-10-03 11:46 AM
Mine are at 90ft/lbs and everything is cool. Just go in the proper order and leave it all together.
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61202, RE: Best way to retorque head w/ ARP studs
Posted by WickedESi, Oct-10-03 02:28 PM
Oh...
Ignore my post than, I thought I read the torque settings for those somewhere to be 60 lbs/ft
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61206, RE: Best way to retorque head w/ ARP studs
Posted by dougie2, Oct-10-03 02:59 PM
Actually... ~70 ft lbs is within the specs. I torqued mine to 90 ft lb. Why the hell would the head warp if they're torqued to anything? Start tightening from the center bolt and spiral outward. Re-torque 3 times. You'll be fine. I hope your headhasket is okay... that would be a major concern of mine.
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61256, RE: Best way to retorque head w/ ARP studs
Posted by Strauss, Oct-12-03 03:23 AM
Mine are torqued to 90 as well.....no problems here.
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61263, RE: Best way to retorque head w/ ARP studs
Posted by WickedESi, Oct-12-03 07:28 AM
I've just heard that it can warp the head in between the studs from too much pressure at the studs (aluminum is soft).
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61267, RE: Best way to retorque head w/ ARP studs
Posted by etx, Oct-12-03 10:20 AM
cool,thanks guys. so i can pull the valve cover and torque to 90? should i torque to 75, then to 90? im going to do it tonight. :thumbsup
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61323, RE: Best way to retorque head w/ ARP studs
Posted by Kirby, Oct-13-03 08:19 AM
Yes you need to do it in steps. Don't forget to follow the sequence.
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61361, RE: Best way to retorque head w/ ARP studs
Posted by etx, Oct-13-03 12:25 PM
cool, but should I loosen them all and retorque? or just torue them to 75 then to 90? thanks!!
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61371, RE: Best way to retorque head w/ ARP studs
Posted by Kirby, Oct-13-03 02:07 PM
No No don't loosen them at all just do the 2 step torque method to get up to the 90FT/LBS but you have to do them in sequence.
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