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twisted off glow plug
- Thread starter chevyCowboy
- Start date
Joey D
Member
- Messages
- 528
- Reaction score
- 8
Easy as pie, have the machinist do it
Try an easy out or weld a nut over it and turn it out
chevyCowboy
I might be crazy but i ain't dumb
Easy as pie, have the machinist do it
Try an easy out or weld a nut over it and turn it out
ya i tried calling him he didnt answer but i know it would be alot easier to do on his mill table.
jrsavoie
Recruit
I would heat it and put Sea Foam on it, then try an easy-out. maybe reheat and retry once, then off to the machinist.
And use neverseez at least every 2 years
And use neverseez at least every 2 years
chevyCowboy
I might be crazy but i ain't dumb
i really dont think an easy out is ganna do it but maybe with heat i had about 20in of leverage on it befor it twisted off. im pretty sure it turnd alittle and then quit and i tried harder and then it twisted
SmithvilleD
Active Member
I'd heat the cast around it, then lay either a nut or washer of appropriate size over it & weld together.
The heat's the key to breaking the corrosion bond & expanding the cast iron around it so there's less friction or interference/tension fit. If it starts to turn with the surrounding cast hot, but then tightens up - just stop, reheat, & go again, 'til it's out.
I sometimes find a washer a more comparable thickness, so easier to weld to something thin walled like this.
The problem w/ EZ outs is usually that when they break, they're a much harder material so that much harder to drill out.
You could also try tapping/spinning it out with a chisel after heating the surrounding cast iron.
The heat's the key to breaking the corrosion bond & expanding the cast iron around it so there's less friction or interference/tension fit. If it starts to turn with the surrounding cast hot, but then tightens up - just stop, reheat, & go again, 'til it's out.
I sometimes find a washer a more comparable thickness, so easier to weld to something thin walled like this.
The problem w/ EZ outs is usually that when they break, they're a much harder material so that much harder to drill out.
You could also try tapping/spinning it out with a chisel after heating the surrounding cast iron.
fastjohnny
Member
Been there, tried all the above, didn't work. BUT, I ultimately conquered. I'm sure every little bit helped, tried all the penetrating oils, heat/cool, easy out-broke that. Couldn't get a welded nut to hold either. (Did get the easy-out out by welding a nut to that) I would suggest melting parrafin wax into the threads with light heat (not cherry)
My little used set of left handed drill bits were what completed the task. Drill in about 3/8" IIRC, not into the seat, first with 1/4, then 5/16, then 3/8. The 3/8th bit is barely smaller than the threaded diameter of the glowplug, it caught and spun the rest of the glowplug out cleanly. I was able to thread the new one by hand to finger tight.
Good luck.
My little used set of left handed drill bits were what completed the task. Drill in about 3/8" IIRC, not into the seat, first with 1/4, then 5/16, then 3/8. The 3/8th bit is barely smaller than the threaded diameter of the glowplug, it caught and spun the rest of the glowplug out cleanly. I was able to thread the new one by hand to finger tight.
Good luck.
fastjohnny
Member
At least it's off the truck, I had to pull the manifold to get to it.