FalconR3CT
.020 Over
I'll contact them to source the proper adhesive for the application. I was thinking 222 or 242 or a poly patch but the heat from the header must be considered. Header, nut, and bolt material may play a part due if different due to thermal expansion.Maybe Purple loctite would be a good compromise?
It also appears to be a blind nut so I might try a vented bolt.
The engineer in me wants to analyze the problem but the rider in me just wants to forget about it and ride.