I have a 82 12A that Iam trying to remove the flywheel bolt off but Iam having a ******* hard time taking this bolt off. I have my boy holding the e-shaft bolt, I heated the flywheel bolt with a heat gun. And when I go to try to loosen the flywheel bolt off no dice...... I have heard rumors of people hitting the bolt with a chisel but I dont want to take the ghetto route anybody got any advice?

 

I had to use an impact wrench to get my flywheel bolt loosened and then tightened again.

 

I made a deal with a local semi truck garage here, i bring them donuts=they take off whatever ***** of a nut/bolt i cant seem to shift. 2 1/8(54mm) IIRC is the size you want. I have taken them off with a chisel before, but i would only suggest it if you have another nut handy or plan to buy one.



isaac

 

I wish I had a nearby garage that would do me the favor but I already carried the motor to my 3rd floor apartment. Wanted to do the tear-down in some a/c I might do the chisel idea. How exactly would I do it?

 

To get my flywheel bolt off. I bolted a long piece of angle iron to the flywheel. Then we used a large breaker bar with an extension handle from my floor jack on the end of the breaker bar. I held the motor and my 200 lb+ teenage son "bounced" on the bar. Finally it brook loose. It must have been over 1200+ ft. lbs. to break it loose.

 

Boy do I remember trying to do this.... Eeeekkk... What a nightmare that was, but my motor was still bolted in and I had to do this from underneath the car. I ended up getting mine off by just getting completely pissed and cranking the hell out of my air compressor and going at it with the impact. This was after an hour of using the impact and also trying the manual way with a big *** breaker bar... Good luck.

 

My Harbor Freight Earthquake impact gun (650 foot pounds) is always enough for the flywheel nut. The hard one is the front pulley nut.

You can get a flywheel stopper from several different vendors, then a long handle breaker bar with a floor jack handle to extend it will work.

 

the chisel will work if you have no other choice, I have done it a few times at the wrecking yard.....

 

heres what i did, bought a 25" breaker bar at harborfreight for 9$ and the 2 1/8" socket at steves wholesale, with the motor in the back of my truck, i just put my foot on it, rocked back and forward and it came off within 5 minutes. the first time i used an impact wrench and it actually took longer. i used the same method for the pulley too, but the pulley is a bit more tricky, keeping the shaft from spinning.

 

Thanks for the advice guys! I strapped the 12a down to an old sub box, I ordered the RB flywheels stopper tool, but I got impatient and went to Craftsman and bought a 2 1/8 with a 6ft. breaker bar if it doesnt work Iam grabbing my chisel and beating that nut down!!!

 

the breaker bar should work, i used a 22mm socket to stop my flywheel lol. if the motor is not in the car, its gonna move a lot, so rock the motor while applying a counter pressure with your breaker bar.

 

the socket is the best way to go, with a good air impact driver it comes off no sweat at about 140psi. Crank the compressor to the max...

But if you are using a breaker bar, hit the flywheel nut a couple of times with a mini-sledge, or metal mallet of sorts before trying to break it loose.

 

I took a piece of one inch square pipe about 5 feet long and drilled two holes in it to line up with the dowel pins on the flywheel, had my brother hang on to that while i bounced my weight on the breaker bar, came off first try.

 

An extremely long breaker bar lol.

 

Oh yeah, it was a craftsman 18 inch breaker bar with a 5 foot section of pipe on it... i failed to specify.

 

use the chain method(one end of the chain on the block and the other end on one of the pressure plate bolts) to stop the flywheel and get a breaker bar and the longest pipe you can find and youll be set.

 

since your motor is out of the car and in your 3rd floor apartment, it will be difficult to the whole motor from moving when you are trying to break the bolt free. Add in your flywheel stops, home made bar, or chain and try to break it free after you hit the nut a few times, but I don't think you will get the leverage you need to keep the complete block from moving unless you have some large stationary object or an i-beam/post to chain or tied down the block. Without a super heavy duty impact gun the complete block will try to rotate. Your best beat is get another nut and cut the old one off. I'm assuming a compressor and impact gun is out of the question since it is on the third floor.......use a electric die grinder and grind one or two sides of the nut down close to the threads on the eshaft and then try the loosen it with the 2 1/8 socket.

 

Ive done it a couple different ways.

If you get the front up on ramps, it can be done, with two people, a bolt that you dont want to reuse, and a crowbar (home depot, 20$) You jam the flywheel against the crowbar (which then jams on the bolt and the frame rail) and then use a 2 1/8th socket, (3/4 drive from craftsman 34$) and then use a breaker (i used 3/4 which was 50$) and a 3-4 foot length of pipe. Then the person underneath puts tension onto the bar and pipe combo and holds the socket on the nut. Person 2 is on the outside of the car and stands/bounces on the pipe untill it breaks loose. this way can be a bitch, but it does work.

Ive also used an impact. I have snap on tools...and the gun is rated at 1100 ftlbs of break away torque....I was running it at 120psi for about 20 seconds before it finally broke free.

Then you have the issue of getting the flywheel itself off which can be just as difficult/annoying.

if you carried it to the third floor though, you might be able to get a buddy to help you carry it down and offer a shop/mechanic 20 bucks to take it off for you.

 

For the torque reactor use an old pressure plate assembly with a pipe welded to it!

Barry