coolant leak around stud

[msfcarp1]

Can someone give me some advice? I just installed a NOSS head and I have a coolant leak around #4 stud. Did I incorrectly install the head? Or maybe not enough thread sealant on the stud?Any help or ideas would be appreciated.p

[theshee]

Did you forget an o-ring?

[msfcarp1]

Nope, I tore it back down and checked everything, I could not see any thing out of the ordinary. I pulled the stud and re did the thread sealant, and put it back together. I will try it after 24 hours I guess.

[inthemail]

Nope, I tore it back down and checked everything, I could not see any thing out of the ordinary. I pulled the stud and re did the thread sealant, and put it back together. I will try it after 24 hours I guess.

 

 

now thats performance....

how it works out.

[Stellar Performance]

I thought the purpose behind the NOSS Coolheads were that you still ran stock length head studs? Anyways, If you were able to torque it down properly, then I doubt it was the stud. It is fairly easy to pinch the oring on the threads of the stud while installing the top half of the head. That would be my guess......or you did not properly torque the head. Keep in mind, even when using an oringed head, you still want to tighten the head bolts in the correct pattern to make sure it seats evenly. The proper tightening pattern can be found in your Clymer manual. :wink:

[msfcarp1]

Thanks, I hope it went back together right the second time. I did not notice any damage on the O-ring though.