Breaker bars and rusty bolts dont mix well. The bolt snapped right at the head. There is however the thickness of the x member left on the bolt. Somthing like 1/4 of the bolt is still sticking out. Any Suggs? I was thinking of getting some mapp gas on it and getting it red and trying to get it out with vise grips but I'm thinking that if a breaker bar snapped the bolt then its going to not work. Let me know if you have an idea. Thanks

 

If you have the time, hit it 3x a day for a few days with pb blaster. This stuff is great. Pep boys sells it. Then I would heat the snot out of it and use the vice grip trick. If that fails we can tell you our other methods. Good luck

 

Am I also better off drilling out the center very small then putting in a small extractor along with your method? It would seem this would be better trying to unscrew it then the visegrips.

 

The problem with using the extracter first is, if it snaps off it is almost impossible to drill out. Ask me how I found that out! If vise grips snap off the bold flush or simply do not work you can skip to drilling. I would wait if it were me though.

 

Drill a hole 1/8" straight through the middle of the bolt. Then heat it up with a torch, get it red hot if you can, and then immediately spray it with a water hose. The rapid cooling will cause the bolt to contract and it will screw right out.

My father-in-law ran a machine shop for about 30 years. He showed me this trick and it works VERY well.

 

here is the best way i know how.

buy a set of drill bits. measure one of the unsnapped bolts, and compare it to a bit just slightly smaller in size. also use the bolt to determine how deep you need to drill.

starting in the very center of the bolt, drill a 1/8" hole. gradually increase the size of the bit until you have an amount of leftover bolt that you can pick out with a small chisel and pair of pliers.

take your time, and don't rush.

 

i broke one off last time i changed the tranny mount, and i just left it, but thats just me, i figured 3 bolts should hold it good enough, at least for now

 

Here's another great option.

If u know someone with a machine shop or in a mill(steel/iron) environment. The name of the bit slips my mind, but we use a friend of ours' "superbit "lol.

We drill out the busted bolt in about 30 seconds and just retap and go. they are expensive, cost about 20$ a bit .

The drilling a 1/8 hole and heating it and then quenching it alos seems like a good way to go to.

Other than what I have said above, its that or drill and extractor and drill some more.

I just expect to have to drill or tap them any time they come out(pia). I use antisieze everytime they go in or out.

If I find the name of the bit I will post it back here, I might see him later

later
Jeremy

 

the 1st time i removed my tranny i broke 2 bolts off flush with the holes, it was alot work to drill and tap new threads considering i had 20 inches of clearance to work with, but i'd have to say the larger bolts, (they've got a 7/8ths head on them) work just fine.