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-   -   Easy way to remove flywheel nut without impact gun (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/easy-way-remove-flywheel-nut-without-impact-gun-529360/)

USCmatt 04-12-06 08:44 PM

Easy way to remove flywheel nut without impact gun
 
I don't think I've seen it explained this way, but maybe some of you guys have tried this as an easy way to remove the flywheel nut. I just slid half of my jack handle over an 18" breaker bar and jacked up the end till I heard the loud pop of it braking loose, pretty effortless.

http://i37.photobucket.com/albums/e9...5speedswap.jpg

impactwrench 04-12-06 08:47 PM

Ya, thats great except the details about how the excentric shaft was kept from turning while you did that.

tiger18 04-12-06 08:48 PM

lol ;knowing my luck id lift the car before that nut would crack loose,,,,i snapped my 3/4 drive doing the last one

Chunky04 04-12-06 08:49 PM

Hey,

I hate to tell you this...but its impossible...IMO...I tried prying on mine for 2 days...(no bullshit) Didnt even get it to budge...

So i finally broke down and bought a $69 dollar impact and borrowed a small air compressor and it came off in about 30 seconds,,, save yourself the time and hassle and pick up a air compresser...

Goodluck,
Shawn

dgeesaman 04-12-06 08:53 PM

You can see the flywheel holder tool up near the top.

The jack and handle trick works - sometimes. The nice thing is you can put a bunch of pressure on it and then heat it without removing the pressure. Definitely wear safety glasses in case something breaks.

Dave

Maximum 04-12-06 08:55 PM

unnecessary post (on my part)...

USCmatt 04-12-06 08:56 PM


Originally Posted by impactwrench
Ya, thats great except the details about how the excentric shaft was kept from turning while you did that.

Look at "1 o'clock" on the flywheel and you'll see a flywheel stopper from mazdatrix

http://www.mazdatrix.com/getprice.asp?partnum=49-220TB

impactwrench 04-12-06 08:56 PM


Originally Posted by dgeesaman
You can see the flywheel holder tool up near the top.

The jack and handle trick works - sometimes. The nice thing is you can put a bunch of pressure on it and then heat it without removing the pressure. Definitely wear safety glasses in case something breaks.

Dave

you're kiddin me right, with what , a microscope?

tiger18 04-12-06 08:56 PM

That flywheel nut is the toughest nut ive ever had to bust in my 15 years of car mechanics,,, i ended up having to make a large brace for the flywheel and someone stood on the engine with a good impact socket and 6 foot bar on the pulley shaft nut on the other end of the E shaft

tiger18 04-12-06 08:57 PM

lol hes correct i can see the flywheel tool (is like the one in the mazda manual)

USCmatt 04-12-06 08:57 PM


Originally Posted by Chunky04
Hey,

I hate to tell you this...but its impossible...IMO...I tried prying on mine for 2 days...(no bullshit) Didnt even get it to budge...

So i finally broke down and bought a $69 dollar impact and borrowed a small air compressor and it came off in about 30 seconds,,, save yourself the time and hassle and pick up a air compresser...

Goodluck,
Shawn

I have an air compressor and an impact gun. I was using a 3/4" drive socket and I have a 1/2" drive impact gun. Instead of getting an adapter I tried something different, easy, and it did the job as well.

impactwrench 04-12-06 09:00 PM


Originally Posted by USCmatt
Look at "1 o'clock" on the flywheel and you'll see a flywheel stopper from mazdatrix

http://www.mazdatrix.com/getprice.asp?partnum=49-220TB

H'mmm, I got mine lose without special tooling, I'll have to do it next time the right way.

dgeesaman 04-12-06 09:05 PM

1 Attachment(s)

Originally Posted by impactwrench
you're kiddin me right, with what , a microscope?

Nope, I just squint.

sevensheaven 04-12-06 09:09 PM

I don't remember the fly wheel tool being recomended for an automatic. Word of caution here, It might have worked this time, but it could also bust the flex plate ring gear. Not trying to rain on your idea, sometimes desperation causes us to take extreem measures to get to the end product. It is clever I'll give you that.

Terry7

dubulup 04-12-06 09:09 PM


Originally Posted by impactwrench
you're kiddin me right, with what , a microscope?

you just have to know what to look for ;) I saw it...

twokrx7 04-12-06 09:11 PM

I never have issues with the flywheel nut, impact usually takes it right off. It's that eccentric shaft bolt on the front that is the real bi*ch.

impactwrench 04-12-06 09:34 PM

Geesaman and dubulup, you are pleasant personalities to deal with here. Proud to be a member. Wheres JImlab?

c00lduke 04-12-06 10:13 PM

An 8-10 foot breaker bar always does the trick for me

cloead 04-13-06 12:00 AM

my impact gun takes flywheel nuts off.. just hammers like crazy!

rotaryinspired 04-13-06 04:23 AM


Originally Posted by twokrx7
I never have issues with the flywheel nut, impact usually takes it right off. It's that eccentric shaft bolt on the front that is the real bi*ch.

:iwstupid:
Its that stupid thread locker they put on it.

Tanjo 04-13-06 05:09 AM

If you dont have an air compressor, rent an electric impact. Works just as good and is a lot cheaper.

GARCO MOTORWORKS 04-13-06 05:11 AM

Some years age I made a hammer wrench on the EDM at work,the lever part I hit on is about 8 to 10 inches long .I can remove the nut with the engine in the car if needed with out the air tool . I do have a 3/4 inch air tool as well .

sevensheaven 04-13-06 06:04 AM

I've done two recently, I tried a cheap new electric gun and my engine laughed at me! In fact one engine was a factory original and one was a reman. I ended up heating both nuts for 10 minutes or so with a small propane torch. That made all the difference. The front bolt has been the easier of the two on both engines. No heat was needed. Yes I had a two foot breaker bar plus a three foot piece of pipe and I go around 230 lbs. I have bent a home made 1/4" flat stock stopper bar bolted to the flywheel before. What I found works best is a 1/2" drive / 2" extension wedged between the counterbalance on the automatic and the engine long bolts. No place to bolt a bar there with out the flywheel.

CantGoStraight 04-13-06 06:34 AM


Originally Posted by twokrx7
I never have issues with the flywheel nut, impact usually takes it right off. It's that eccentric shaft bolt on the front that is the real bi*ch.




I'll second that. I've the same issue with the original motor I took out of my car. I got the flywheel nut loose okay but have yet to get the bolt on the front of the e-shaft to give it up. I have't tried heat yet but have used a significantly endowed 3/4 impact with out success. I'll make an angle iron brace and try a breaker bar next.

fd3virgin 04-13-06 06:59 AM

when i did mine it just came off with an impact gun. not much trouble. i soaked it with a lot of pb blaster. kvn


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