1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

need help fly wheel bolt stujck

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Old Jun 12, 2008 | 02:50 PM
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need help fly wheel bolt stujck

i need help getting my fly wheel bolt off...i have the correct 2 1/8inches bolt and a 3 foot breaker bar. However it still will not come off, does anyone have any suggestions or tips for removing it?
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Old Jun 12, 2008 | 10:08 PM
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Heat, but not too much and just on the nut not in the hole (e-shaft/PB).

Its held on with loctite AND 360 ft lbs of toqrues

Impact also helps. And a flywheel stop if you dont already have one
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Old Jun 12, 2008 | 10:18 PM
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You need a longer breaker bar, and a maul. Just keep rapping on it until it breaks free. Or rent a impact driver.
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Old Jun 12, 2008 | 10:30 PM
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just bring it in to my shop tomorrow at some point with the 3/4"-1/2" adapter you have. and find a way to keep the flywheel stopped without using dangerous stuff, like a hatchet or a screwdriver...you'd be surprised ive heard of people using stuff like that.


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Old Jun 12, 2008 | 10:36 PM
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thanks for the info i will try what you guys recomended
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Old Jun 12, 2008 | 10:45 PM
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Use an alternator bracket and bend it 90*, Use the slide part and the top inspection plate bolt and bolt it there, then use the single hole and slide it over the flywheel's "rod" that poles out on one of the "castle" things. Sorry for the crude explaniation but it works like a charm for me.

Also I use the RB flywheel nut bar and some 2.5" pipe (its actually RB 2.5" 4 foot exhaust pipe).

PB Blaster is your friend.
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Old Jun 13, 2008 | 01:17 AM
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impact zipped mine off in about 4 seconds.. get one! helps alot in more situations than this
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Old Jun 13, 2008 | 06:37 PM
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Originally Posted by RotaryMelon
impact zipped mine off in about 4 seconds.. get one! helps alot in more situations than this
I had better luck with a breaker bar with a pipe entension and a big ****** hammer. I impacted it for like 15 minutes on and off with full pressure (rated for like 480 ftlbs) to no avail.
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Old Jun 13, 2008 | 11:39 PM
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Yeh... my impact gun took mine off in less than a second.. lol. takin the flywheel off the engine is the bitch...
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Old Jun 14, 2008 | 06:41 PM
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my friend came over and stole my engine and used his impact wrench to get it off, but thanks a lot for the help.
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Old Jun 14, 2008 | 08:02 PM
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I need help also

The nut came off with no trouble (impact wrench)

But I can get the flywheel off.

So far I worked up a sweat qnd bent lots of steel. I tighten up the center bolt beat on it with a hammer, tighten beat tighten beat

Boy am I beat
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Old Jun 14, 2008 | 08:10 PM
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Put the flywheel nut back on. Hit around the nut, apply PB Blaster. Wack it a few more times, and all is well. Works for me, even when removing one that has not been touched since the factory.
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Old Jul 23, 2008 | 09:36 PM
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Not sure if anyone still is interested...

I just took a sledge hammer and took about a 1/4 swing and hit the clutch surface, it popped right off (keep in mind I was not reusing that flywheel). You don't want to hit the e-shaft or too far out on the radius of the flywheel.

And here's a pic of what I used to get my 2 1/8'' nut off with, that's a 1/2'' drive socket with a 5 foot 1x3 box beam and a 4 1/2' steel bar for digging rocks. The bar is stuck into the flywheel stopper

My dad sat on one side (200lbs) and I sat on the other side (210 lbs) it cracked loose on the first bounce
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Old Jul 24, 2008 | 10:06 AM
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First rebuild I did, I got ahold of MazdaTrix's purpose-made remover tool and blocker bar. 3-ft flat steel bar bolts to flywheel via clutch bolts, and rests on the floor; 2nd 3-foot steel bar with cast 54mm socket welded on goes on the nut. Heave, pound... off she came.

Getting the flywheel off the shaft was a different story. Typical pullers won't work due to the pilot bearing bore. Tried heating it, tried pounding it, tried penetrating oil... nothing (this was the original engine; flywheel had probably been on for 15, 16 years at the time). Even took it to a local machine shop... they gave it back three days later, having been unable to remove it.

What finally worked: there are a couple of threaded through-holes partway out from center on the stock flywheel. I got a pair of hardened high-grade bolts that would fit through them and reach all the way to the back iron face. I re-threaded the flywheel nut most of the way on, tightened those two bolts up to the point they were "singing" as they turned, put a hunk of 2x4 over the end of the e-shaft, and hit it firmly-but-not-harshly with a 3-lb sledge. BANG! off she came, with a sound like a rifle shot. Shaft and flywheel later tested out just fine.

Nothing like proper force, properly applied.
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