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

flywheel nut.

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Old 03-10-10, 09:41 PM
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flywheel nut.

Ok, I admit I'm being lazy, since I could find the answer in the FSM. What size socket do I need to take off the big flywheel nut?
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Old 03-10-10, 09:51 PM
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Your right your lazy! A search for "flywheel nut" would get you what you want too.
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Old 03-10-10, 10:50 PM
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2 1/8 or a 52mm. it will require a 3/4" drive breaker bar or impact gun and a flywheel stop.
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Old 03-10-10, 11:48 PM
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cold chisel and a hammer!!! screw the socket
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Old 03-10-10, 11:52 PM
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Ah yes... the wumbo nut of doom.
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Old 03-11-10, 07:49 AM
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Dave: You mean 54mm.
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Old 03-11-10, 11:56 AM
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Originally Posted by mazdaverx713b
2 1/8 or a 52mm. it will require a 3/4" drive breaker bar or impact gun and a flywheel stop.
2 1/8" or 54mm
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Old 03-11-10, 07:06 PM
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Thanks guys. If I can get the nut off with ease, is it ok to re-use it? I know that it's recommended to replace it.
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Old 03-11-10, 07:10 PM
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Originally Posted by gsl-se addict
Dave: You mean 54mm.
yup just a typo. thanks for the good catch

at any rate, just go to sears and grab a 2 1/8 socket and you'll be set...provided you have the flywheel stop and a large breaker bar and a friend to help you hold the engine...or a 3/4 drive impact gun
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Old 03-11-10, 07:10 PM
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Originally Posted by mjm4jc
Thanks guys. If I can get the nut off with ease, is it ok to re-use it? I know that it's recommended to replace it.
i have reused mine with no issues what so ever. just be sure to torque it properly.
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Old 03-11-10, 07:12 PM
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Never had any issue with reuse.
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Old 03-11-10, 07:15 PM
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Originally Posted by mazdaverx713b
i have reused mine with no issues what so ever. just be sure to torque it properly.

Thanks. Does it have to be torqued according to specs with a torque wrench or just reallllllllll tight?
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Old 03-11-10, 07:27 PM
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torque wrench specs are preferred...but since it should be torqued to 289-362 ft/lbs, you may not have a suitable torque wrench..german torque spec: goodentight...seems to be effective, lol
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Old 03-11-10, 07:56 PM
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If your taking the engine completely apart, remove the bolt in the center of the eccentric shaft on the front the engine first.
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Old 03-11-10, 08:03 PM
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Jerk?!!


PM- 3/11-quote *****Yeah I'm lazy.

--------------------------------------------------------------------------------

Dude,

You don't have to be a jerk about it. Notice that everyone else responded nicely. If you don't have an answer for someone, then don't post. Guys like you should stay off the forum.***** -end quote

Are you f**king kidding me! I have made a point not to be a dick here on the forums, even when I think I'd be right. I simply agreed with you. in youe own words you said you were lazy! I was actually flipping you **** for not even bothering to look. A search or even a small effort to read the FAQ's would have given you what you wanted without asking for help. In case you didn't bother to read the forum rules or guidelines. FAQ stands for FREQUENTLY ASKED QUESTIONS and was compiled at the expense of others time for our benefit. Specifically to answer all the common questions so that those here can use the time they donate to helping others by actually helping with "real" issues! Not so that some *** too lazy to even use a search button or read the FAQ's, who self admittedly hasn't even looked for his own answer can waste the members time. Not to mention going out of your way to **** ME OFF! I was jekin your chain *******. But it WAS and IS true as well. Sorry if it hurt or if telling the truth pisses you off, but for someone to lazy to do a search, you sure made time to pm me and call me a jerk. Guess your laziness is selective huh!? As to staying off the forum, maybe you should actually learn the meaning of the word, before you use it. We aren't here to serve you! In short as my first official "jerk" post, KISS MY A** DUDE!!!

My apologies to everyone else, but I gotta call bullshit when it's thrown in my face.
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Old 03-11-10, 09:15 PM
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there is so much love on this forum lately LOLLL
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Old 03-11-10, 10:40 PM
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hahaha kids these days
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Old 03-11-10, 10:58 PM
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bahahaha good stuff

hey op the FSM is great ****** reading material i had the ups store print it out for 4$ and i put it into a binder and it sits above my toilet
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Old 03-11-10, 11:31 PM
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When you get the nut loose the next task is to get the flywheel to come off of the E-shaft. This is a tapper fit so it won't just come loose. The best way I have found to hit the flywheel out on the edge with a brass or lead hammer. I have a big brass hammer - this works everytime for me....even on light weight steel flywheels

Mazdatrix has a great description of this process on their website.
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Old 03-12-10, 01:02 AM
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Hmmm I used a Harmonic balancer pulled to get it off...
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Old 03-12-10, 03:38 AM
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i used a 54 mm impact on the nut and then inserted a pry bar on one side of the flywheel and tapped the other with a brass hammer. came right off. i also reused the nut with no problems.
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Old 03-12-10, 08:04 AM
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when removing the flywheel, leave the nut threaded on some to keep the flywheel from jumping off and hitting the floor, or worse, ur toes.
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Old 03-12-10, 11:31 AM
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Loosen nut, then whack flywheel sides with a hammer. Pops right off.
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Old 03-12-10, 11:50 AM
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D's Nutz

If you dont want to reuse the nut or you damage it too much in the removal process, forum vender Rotary-Works sells a titanium one. No real extra value except that it is cool.
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Old 03-12-10, 12:27 PM
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if u use a impact gun heres a tip.
i used 1/2"hose about 6ft long for ultimate air volume.. i had a 15ft 1/4" hose before and it wasnt enough was fustrating all day till i got smarter lol
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