Another ARP Head Bolt Retorque Question

[Richard Le]

Let's say the ARP bolts on my Vortec heads have RTV sealant applied to their threads and then torqued down to 75 ft-lb. If I want to retorque the bolts, can I just back each bolt out 1/2 a turn and then retorque or do I need to remove the bolt from the head and apply new RTV?

 

[Quickstop [UK]]

Re: Another ARP Head Bolt Retorque Question

Remove, clean and reapply. If you break the threadlock then it won't reseal. Why are you tightening past 75? Stock is only 65 and I haven't seen any manufacturers advising tighter than that. If you're too tight then there is no stretch left and you could break something. My 2 pence.

 

[EcSy#2671]

Re: Another ARP Head Bolt Retorque Question

Why did you use RTV and not ARP stuff?

 

[NecroWolf]

Re: Another ARP Head Bolt Retorque Question

probably should clean the threads in the hole too