Re-tension the head

[robevo]

def put some moly grease under the nut

 

[Hypo]

All done and dusted.

Hopefully this resolves my issue.

 

[JC evo1]

i doubt re-tensioning the bolts will fix a leak but its worth a shot i supose. Once the combustion pressure has found a way out it usually means the gasket is done.
U can buy a block test kit, it will tell you if you have combustion gass in the coolant. Let us know how you go.