Hey, what the heck thread is a glow plug?

Thanks,

1/4 - 32 for standard glow plugs.

That brings on the rest of the story.

1/4"-32 is not a normal coarse or fine thread. It a extra fine thread. There is a tap available through hobby sources though. It is realitively inexpensive.

You can send your head to Clarence Lee and he can install a Heli Coil in it for you. It's not cost effective to buy your own set of 1/4-32 Heli Coils. This was just talked about recently in the last few days.

http://www.rcuniverse.com/forum/uh_o...1622473/tm.htm

Enjoy,

Jim

I haven't stripped one out, was just wondering.

Thanks!