Seized starter bolt

You need two people, get your long breaker bar back on the bolt and apply as much torque as you can while the second person hammers the socket or the casting near the bolt. The shock from the hammer blow, plus the torque should break it free! Fingers crossed!!!

 

You might think I'm crazy, but try heating up again and find a candle before you heat it up. Take the candle after u heat the bolt and shove it on the hot bolt let the wax melt on it and it will release the rust. I had a bolt stuck and broke off in the coolant jacket of a 1929 wakasha engine and I had tried everything under the sun to try to free it and when I tried the candle trick NO BS it worked.

 

I had one do this .... I cut it off.. and tapped it out took about an hour but.. You probably have more than that invested already..

 

Spray some kind of rust eater- walk away, spray -walk away, spray walk away -let sit over night-- then try an impact gun if you can get one on it. if you can heat the part that receives the bolt with oxy/ acetylene to very hot it should come eventually.

 

I was gonna say I hope it ain't the hard to reach one!

Try repeated heating cooling cycles because the steel and aluminum will expand and contract at different rates so the rust bond should break.

Might be easier to just break it off so you can get the starter out of the way and then weld the bugger out.

 

It's probably too late now, because it's not available in stores, but get a can of Kroil for next time. Order via the internet.