I'm just a Saturday mechanic with a Sears Craftman ratchet set and a few screwdrivers is about all I have, but I've come across plenty of stuck bolts and nuts and other parts rusted stuck. One of the most memorable was a front brake disc. The disc in normal operation is held to the wheel by the tire and the wheel lugs , so the disk is just held on to the backing plate by a phillips screw so it doesn't drop off when you take the tire off when doing service. Well, I removed the brake caliper then the phillips screw but the disc wouldn't budge. And it wouldn't come off no matter what I did. I applied heat. Lot's of heat. It wouldn't budge. I crawled under the car wearing short pants -- this part is important to the story! -- anyway I'm laying on my back pounding my fist on the disc from the underside of the car to knock it off, no go, so I take a break for a minute to catch my breath, just laying there wheezing. I guess in the meantime the heat got distributed to where it was supposed to go in the first place, and all of a sudden without me doing anything and with no warming it just fell off. And landed on my bare leg. Hotter than hades! Ouch! lol .. well, it wasn't funny then, but it's funny now.
Anyway, what are your secrets to remove stuck parts? Here's mine
* Penetrating oil and time
* Nut splitter (a small gadget to split open stuck on nuts so you just pry them off)
* Manual Impact driver (a small gadget, you knock it with a hammer and it twists slightly, to remove stuck screws and bolts)
* And the biggest secret: If I need more room to work, I take more stuff off to get better access.
What are your other secrets for removing stuck parts? Any funny stories?
I don't think actual mechanics can afford to spend time with stubborn stuck bolts. What do they use? Air impact wrenches?