Broken lag bolt removal?

[Turbojack]

Get a left hand drill bit. Since a friend told me about these I have never missed getting a bolt out.

 

[Throttle Fever]

Weld a good size washer to the top or what is left of it. Then weld a nut to the washer and back it out. Let some heat transfer and the heat will break it loose from the stringer. Do not get it hot to the point of anything starting on fire. Done it a dozen times and it works great. Pete

 

[MOBILEMERCMAN]

With an 8" wide stringer, rotate the mount and be done with it. That or tell your buddy to fix it himself or pay somebody.

You have already talked about it longer than it took to pull the motor.

I am with Griff. Besides the mounts have a slot on one side anyway. You probably won't need to rotate it much at all.

 

[sledge]

You have already talked about it longer than it took to pull the motor.

:sifone:

Actually, you guys have talked about it :biggrinjester: but I'm sure there's plenty of people that appreciate the good ideas.

Twist the mount is the winner on this job. Luckily the Volvo mount has a slot on one end so it got turned around to use the one good hole rofl and the other got relocated to the side just a bit. Took a while to get the motor done but it's all together and bolted in; the drive should go back on this afternoon if weather and meetings don't interfere.

Thanks again everyone for chiming in!

 

[BradH]

I'd slap a little paint on the broken drill bit to limit the rust stains.

 

[phragle]

the volvo guy probably went at it with a cheap drill bit with a fast drill and no lube and work hardened it. with stainless you need a good bit, slow speed and lots of cutting fluid. I'm suprised he broke the bit instead of dulling the tip

 

[sledge]

the volvo guy

:sifone:
That would be my buddy and me. We don't need no stinkin' dealer service meng. That's what you guys are for.

Decent bit, spray lube...the problem was I let him use the center punch and run the drill. I looked at the center punch...it was dull (no wonder the bit didn't take a set at first). Then with the drill set crooked, he let it wobble and that's all she wrote. The second bit did dull so we ended the effort. We sprayed some corrosion block on it and it's sitting on a horizontal surface under the engine mount so it's all good.

Everything went back together real easy after that and just doing break in these days.

 

[sy goldberg]

Instant fix !

You should have had STECZ breathe on it.:26::26:

 

[Geronimo36]

Snap-On high-speed Cobalt drill bits, best bits I ever bought!

 

[Comanche3Six]

Dremel with a cut-off wheel (small profile) Cut a groove in the center of the sheared bolt, screwdriver bit on a ratchet.
Good Luck
Ed