seat belt removal?

[darjeeling]

I just destroyed my torx T-50 bit trying to remove the female ends of my seat belts where the strap connects to the body.  None of the heads turned at all and it took a lot of strength to twist that bit.  Is there some trick to getting these things out that I don't know?

[mudkicker715]

Pen oil from underneath. Rust is awesome   

[txjeeptx]

2nd the penetrating oil, also could try some application of force in the tightening direction first, just a bit, to try and break the threads free, then back the loosening direction. Keep a lot of downward force on the breaker bar head to keep the bit as deep as possible in the bolt, like maybe get a helper to push down while you do the turning, and buy one better grade T-50 torx bit, somethin at least Husky er Crapsman(although I break them, too). If the bolt gets rounded out, you'll have weld a nut to the head of the bolt to be able to get it out, and welding that nut on will require a lot of prep to protect the rest of the interior for ten seconds of zap.

[Whuntmore]

2nd the penetrating oil, also could try some application of force in the tightening direction first, just a bit, to try and break the threads free, then back the loosening direction. Keep a lot of downward force on the breaker bar head to keep the bit as deep as possible in the bolt, like maybe get a helper to push down while you do the turning, and buy one better grade T-50 torx bit, somethin at least Husky er Crapsman(although I break them, too). If the bolt gets rounded out, you'll have weld a nut to the head of the bolt to be able to get it out, and welding that nut on will require a lot of prep to protect the rest of the interior for ten seconds of zap.

x3 and eggcellent info there txjeeptx.

[jim]

I too have one I can't get out.   Someone suggested heating the nut but I didn't want to possibly burn the carpet.   I considered grinding or cutting the nut but haven't been able to reach it with the tools I have.  I have a nut splitter but it's too small.  I would buy a larger one but don't know whether I could reach the nut even then.

[BenM]

When I did it, I destroyed two bits and several bolts. Penetrating oil and rocking the bolt back-and-forth. Hit it squarely and sideways with a small hammer too. Keep working at them and have more patients then I did.

The nut is welded on, so I don't know if splitting is a good idea.

[Tennessee_Farmer]

Use an impact wrench.

[GRONK]

The quality of the torx bit is what will get you through this.  I have stripped more inexpensice bits than I can count, usually ruining the nut too.  Penetrating oil is your friend.  Of all of them on the market, I have not found anything better than a product called "Mouse Milk"  It's in every tool bag I own.  Aviation mechanics turned me on to it and I've never ooked back.

Mouse Milk has kept the welder dusty.

[Tennessee_Farmer]

Again, try an impact wrench.  I had one like this that I struggled with for days until trying an impact wrench and it came out with little difficulty.  I may have sprayed it with penetrating oil, but it was the wrench that did it.

[carguy87]

A couple rounds of penetrating oil followed be a short blast from an air hammer to help vibrate some of the fluid in there and get the dust out, then a tap of the impact and the bolt will seem to fall out.

[craigp29690]

As previously stated, IMPACT WRENCH.  Sometimes brute force will strip or break bolts, the impact gun will do the trick.  Another thing I've been using on rusted bolts is a 50/50 mixture of acetone and transmission fluid instead of Liquid Wrench or WD 40 like some use.  This was posted on another car forum so I figured I'd give it a try.  Worked way better than the two products listed above and is a whole lot cheaper in the long run.  But be careful handling the acetone, it is highly flammable.