Snapped stator bolt,Gpz750

[Guest]

Being down inside the cover makes it hard to get at
So far I've tried:
Heating with propane torch then PBBlaster.
Slotting with a dremal and a impact driver
And of course a few sets of vice grips all to no avail
Thought about doing
Left handed drill in my drill press.Don't think it will fit in the vice and I'm horrible doing it with a hand drill
Having something welded on.
I have an exposed stub,it really shouldn't be this hard.Other suggestions?

[Oldman99]

If you could get a nut started (Properly on the treads or otherwise) You could weld it on the inside to the broken bolt. Let it cool of on its own and carefully back it out with a socket.

[SVSooke]

If you could get a nut started (Properly on the treads or otherwise) You could weld it on the inside to the broken bolt. Let it cool of on its own and carefully back it out with a socket.

No room for a nut with the lip let alone a socket,remaining threads are trashed now to.

[JTGS850GL]

Weld a bolt to the remaining screw to elevate the head in order to get a socket on it. Worst case is you'll have to grind it flat, center punch it and drill it out. Either you can collapse it in and save the original threads or re-tap it.

[Cipher]

friendly local machine shop
20 bucks an an extra large double double

[SVSooke]

Weld a bolt to the remaining screw to elevate the head in order to get a socket on it. Worst case is you'll have to grind it flat, center punch it and drill it out. Either you can collapse it in and save the original threads or re-tap it.

I think your first suggestion's worth a try for sure.I really am terrible drilling out bolts so that really is my last resort

[JTGS850GL]

If option on doesn't work and you find yourself having to drill it out, then the suggestion of taking it to a machine shop is best.

[Nessism]

There is enough nub there to grab with vice grips. I'd hit it with PB Blaster and then heat the nub with a torch until it approaches red hot. Hit it with more PB Blaster and try to turn the nub out, turning both directions until it busts loose.

[posplayr]

There is enough nub there to grab with vice grips. I'd hit it with PB Blaster and then heat the nub with a torch until it approaches red hot. Hit it with more PB Blaster and try to turn the nub out, turning both directions until it busts loose.

Isn't that going to make the bolt bigger than the hole? I would think you would heat the aluminum or alternate and cool to break the oxidation on the threads?

[chuck hahn]

I have drilled a hole down the center and used a left handed tap and bolt. The left handed bolt will screw in and tighten..thus removing a right hand thread bolt.

[Nessism]

Isn't that going to make the bolt bigger than the hole? I would think you would heat the aluminum or alternate and cool to break the oxidation on the threads?

It's about breaking down the oxidation. Lots of times when guys weld a nut onto a broken bolt nub the heat from welding does the trick and the broken shank turns right out.

[posplayr]

It's about breaking down the oxidation. Lots of times when guys weld a nut onto a broken bolt nub the heat from welding does the trick and the broken shank turns right out.

Yes, done that. Got 4 for 4 exhaust bolts out with my trusty HF welder(another guy's bike). Just don't recall trying to twist it out when it was red hot.

[SVSooke]

I don't think my propane torch will get it hot enough Ed.Don't know if it makes a difference but screw appeared to be a stainless Allen(hex head).

[posplayr]

I don't think my propane torch will get it hot enough Ed.Don't know if it makes a difference but screw appeared to be a stainless Allen(hex head).

Use MAPP gas. When you weld the metal gets pretty hot

[SVSooke]

At this point I'll skip the MAPP gas and keep soaking it in penetrating oil for a few days.If that doesn't work and I don't really think it will it will be going to work to have a bolt MIG welded on.