Stripped Threads Repair

[Paul M.]

Weve got stripped out threads on the thermostat housing on a 270hp, 61.
Does anyone know if there were studs or bolts originally? It has studs in it now but one is stripped out. What is the best way to repair?
Thank you
PM

[Dennis C.]

PM - They were studs...

...heli coil repair w/3/8" and replace w/stud/s. Should last longer than you and I combined... Best, Dennis

[Terry F.]

Re: Stripped Threads Repair

Better than helicoil is a thread insert. If done correctly it is stronger and has a better appearance than helicoil. Machine shop can do it easily. You can make them yourself if you have the tools. I make my own when I can. They can be purchased in a number of different metals. I avoid using helicoils for the most part unless I have to use them, expecially when around water jackets. Its a spring.

I used helicoils for years with out problems but inserts are the best.

Terry