glow plug threads stripped
 

Does anyone know how to rethread stripped engine head glow plug holes. The plug is loose and the threads have come out. You can push the plug in and pull out alittle, it is loose and won't tighten. I saw some adapters and rethreaders on an old add for ISC which is now out of business. Help.

In the back of RCM magazine
 

Clarence Lee does a helicoil repair - they're BETTER than new.

Helicoil repair
 

Depending on how mechanical you are & if you have a good drill press or a freind does, you can do the repair yourself. If not take off the head, purchase helicoil and take to a good auto mechanic for the fix. Any one riding a older Harley can usually fix also. I almost forgot, if the cylinder and head is one piece, the engine must come apart also as shavings will go down when plug hole is drilled out for helicoil and get inside the engine.

Thanks
 

Thanks for the info. I will send it out to Lee for this heli-coil.

glow plug threads stripped
 

I also can help .I have a small machine shop in my basement. The plug is a 1/4-32 and can be fix with no problems. Let me know if i can help
Ken

Thank you Machinist Man
 

Thanks for the offer to help. I sent the head off to Lee to have a heli-coil placed. It cost 12.50 (my engine was a .91, if it had been a .90 or smaller, it would have been 8.50). I will let everyone know the end result when it arrives in a few days or weeks. Thanks again. Rick