I have been soaking (WD40) one of the hinge pins in our '29 sedan damn near every day for a few weeks now to no avail. I have tried pulling it out the top and it doesn't budge, I have tried pounding it from the bottom but haven't hit it too hard as I don't want to "mushroom" it. Am ready I think to try heat (haven't done it yet as we don't have a torch in the shop and am gonna have to bring one in) Do I heat the pin, the piece that the pin goes through, both pieces (I know that both are probably gonna recieve some heat) Thank-
Alot of people have good luck by using a air hammer with a sharp pin at the end. That with some heat. The constant hitting usually loosens them with the hammer.
If you are going to replace the pin and you don't have heat..., First try grabbing the top and twisting it while someone else taps the bottom. If that doesn't work...,Grind off the top and drive downward! Mark
Give it some heat on the outside of the hinge, let her cool to touch or better. Then give it some more heat to loosen the rust and ****. Let the piece cool and then work it! It has to cool to really work good. Worst case drill it out in center with a 1/8 drill and slowly get bigger, but careful not to brake out into the hinge area.
Somebody on here said that if you can get it out enough to get a drill on it you can spin it out. Good luck b/c that ****s.
Heres a way I found that always works......if you have a torch to heat the area. For years I would dread pulling doors off old derelic bodies until I found this method....by accident. I heat the center part of hinge with the door in the closed position. Be careful not to warm the body sheetmetal too much. Once the hinge is a dull red move to the top of hinge and clamp the head with a medium size side cutters. The head will squish and then give the pin a slight turn back and forth. This gets it moving and now begin jacking the pin up out of the hole by levering the side cutters down against the hinge. The trick is to heat just enough.....too much heat and the pin head pulls off. Until I figured this way out I was going nuts getting pins out. Seemed like evrything I tried to push the pin up and out just made it tighter. By pulling the pin up from the top it is stretching and becoming smaller. If by chance the head of pin is gone there is usually enough pin hanging below hinge to grab and jack out from the bottom. Well I hope that makes some sense. It works great for me on even the most stubborn and rusted hinges. Steve
I used the heat trick and when it's half way cool, squirt in some PB-Blaster. It will wick right into the rusted area. If you do it while it's still hot you get fire.. I also drilled from the bottom and used a small punch in the hole so I wouldn't mushroom the end. I like the pull from the top and stretch the pin idea though. Good luck, TZ
[ QUOTE ] Somebody on here said that if you can get it out enough to get a drill on it you can spin it out. Good luck b/c that ****s. [/ QUOTE ] That works great on hood hinge pins.
Heat the center part of the hinge til just red. Instead of wd -40 or pb blaster use an old candle. Let it melt all over the hinge and pin. It wont catch fire like the other stuff. The heat draws it in around the pin. You can heat it again and add more wax. Hit it with an air hammer with sharp bit after it cools and it will come out easy. Done it on really rusted bolts and engine fittings that wont come out with spray rust busters, cheap to!! Did it this way on my 39 and a 34 pickup resto job. Reused the pins on the 34.
Do not, repeat DO NOT, try to grind the head off the hinge pin and then drive it out from the top. The serrations are toward the top and you will be working against them the whole way. Life is hard enough without adding to your own misery. Use the heat method described above. It will work. And I like the candle wax as a real helper whgen doing this miserable-*** job. Wish I knew it years ago when I was struggling with the same task you're agonizing over. Good luck. Let us know how things work out.
Have you tried pressing the pin out with a hinge pin remover? I use a Kent-Moore one, but I've seen them for sale at (I think) Eastwood. You can put quite a bit of steady pressure on the pin and, along with the penetrating oil and a sharp rap with a hammer, they usually will loosen up and come out. Try using PB Blaster, instaed of WD-40. I've had a lot better luck with it.
The Jalopy Journal
