Any Really Effective Method of Removing Stubborn Bolts?

[Snort]

Great ideas! Will definitely try some or all. Thanks!

[brownbagg]

acetone and transmission fluid

[take57]

I suppose Thermite would be too agressive

[armory]

Blue wrench

[hunterseat]

Originally Posted by JBPisgah

Time is your friend. Spray it with penetrant and leave it overnight. Spray it again. Breaker bar with long pipe.

Try tightening, then loosening.

I vote for this.

Don't cut the excess off if you're planning to reuse.

[GregW]

I suggest, if this a bolt with a nut situation, placing an air hammer on the head of the bolt and a proper box wrench on the nut. Hammering will likely break the bond between the bolt and nut. Oh, use penetrating oil for a couple of days first.
This will avoid destroying the nut or the bolt.

Another way that will damage both the nut and bolt is to drill a hole on one of the nut flats to remove much of the side of the nut. Drill into the bolt as needed. Then use a sharp cold chisel parallel to the axis of the bolt to split and expand the nut. Replace the bolt and nut with new. Use silver anti seize goop to keep the rust from seizing up the new fasteners.

Good luck and let us know what you did and how well it worked.

[SoCalCpl2]

Blow torch...

[tommy64]

put a long length of pipe on a breaker bar and get some leverage.

[Northern Maine Land Man]

PB Blaster is good. Kroil is better and aviation Kroil is best., all are way better than WD40. Kroil costs 3 times as much as WD40, but is 10 times better. It comes in an orange can.

[beer belly]

Originally Posted by parfleche

I use PB blaster spray for a couple of days and let penetrate then wrench. worked on my 20 year old rusty jeep springs

Originally Posted by FrogCross

I buy PB Blaster by the gallon. It's great stuff.

PB Blaster hands down the best stuff on the market