how do you get a rusty screw out?

Question

i am restoring a 1982 yamaha xt200j and the hardware all over it are loaded with rust...there are a few particular screws i need to get out that i have tried wd-40, pliers, heating it, and a regular drill...?

Answer 1

http://www.factsfacts.com/MyHomeRepair/screwit.htm

Answer 2

I've heard good things about wax; I guess you'd need to warm the bolt or screw head up with a small torch, then apply some wax which hopefully will seep down into the threads.

I've had excellent results using impact screwdriver bits in a pneumatic impact wrench. I used a very low torque setting, so it just goes tappy-tappy-tappy and doesn't jump the bit out of the screw head. And set it to tighten first, before trying to unscrew. That helps to break the screw loose, without damaging the critical "loosen" faces of the screw head. I haven't tried it with those easy-out bits, but those could work if the screw head is too stripped for the regular bits to work.

With a badly stripped philips head, cutting a slot with a very small drill bit or Dremel cutoff wheel can work.

Answer 3

Have you tried a device commonly called an "easy-out?" It is, essentially, a drill with a reverse tip that allows you, once you have drilled it into the recalcitrant screw or bolt, to put a wrench on it, and twist it out. Generally available at hardware stores.
Short of that, you may end up drilling out the old screw, and re-threading the hole (yuk! - but sometimes happens).
Good luck - I've been there before. Swearing at it, unfortunately does not help. Patience, continuous work at it, and the occasional use of brute force will usually help you, as will plenty of WD-40!

Answer 4

does your wife need to open jars for you? loosen it up, or snap it off, drill it out and tap new threads.