Originally Posted by armybass
Been upgrading a bit lately and I am having a hell of a time with the T Bolts on my 91 Wrangler. I mangled three trying to take an old steel door off.... thankfully it was on the door I was taking off and not putting back on. All three of the bolt heads just disintegrated when I tried to take them off with a ratchet. Seems to only happen on the ones that are painted.... the paint may have weakened the metal over time???? Is there a product I can put on and around the bolts to loosen them up first? Locktight or something like that? Thanks.
You need a penetrating oil like PB Blaster... Let it soak for a while, spray the hell out of it around the head of the bolt. Needs to sit for a few hours, or three beers.
Also you can try the impact method, put your driver in the screw and give it a good whack with a hammer... If you have a breaker bar, use it instead of a ratchet and tap inline with the bolt with a hammer while holding firm pressure... This helps break the corrosion between bolt and nut threads.
Lot of aircraft mechanics have drivers for rivet guns that will put continuous hammer blows on the bolt or screw while you twist to loosen, not heavy blows but quick and sharp. Seen completely stripped out corroded Phillips come right out.
T bolt "almost" stripped out or bit keeps popping out? Can mix some borax or baby powder and water into a dry paste and add it to your bit, will help the bit get a better friction bite on the T bolt... Works great with Phillips also.
Much easier to use a larger breaker bar with even pressure than a small one and lean too much on it.
Some times going for some pressure in the tightening direction for a min then back to loosen will help break the torque also.
If it is still tight after breaking torque, you can alternate re-tightening and loosening... This will help clean and break up the corrosion, also warms the metal up, keep spraying your penetrating oil the whole time.
Advice for reinstallation, use liberal amounts of copper anti-seize on the threads of the bolt, will be much easier to remove next time.