Pulling 12a flywheel help please!!!
So Im am in the middle of tearing down my engine to rebuild it. I got to the flywheel and came across this huge nut holding my flywheel on. What is the procedure to reomve it? I cant find any help in my chilton's repair manual. Sorry if this has been coverd before, But nothing came up in the search.
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https://www.rx7club.com/1st-generation-specific-1979-1985-18/what-size-flywheel-nut-359733/
everything you need is in there ^ |
get a 2 1/8 socket and an impact gun.....than you will need a puller to get the flywheel off or the wrong way hit it on the bottom with a hammer and pry on the top with a
BF-screwdriver or pry bar. than hit on the other side and will shake loose |
Originally Posted by 81gsl12a
get a 2 1/8 socket and an impact gun.....than you will need a puller to get the flywheel off or the wrong way hit it on the bottom with a hammer and pry on the top with a
BF-screwdriver or pry bar. than hit on the other side and will shake loose |
Keep in mind that wailing away on the flywheel transfers that force through the e-shaft. What stops that movement on the other end of the shaft is the e-shaft nut. In between there, what absorbs the impact, is the torrington bearings. Something to concider the next time one gets the BFH out.
I modified an off the shelf puller to match the spread of the bolt holes in the flywheel. I tighten the puller down with an impact wrench, snugly, not too tight, then walk over to get a hammer. Half the time the flywheel has popped by the time I get back with the hammer. Otherwise it takes a moderate tap on the flywheel, towards the front of the engine, not the back. Always leave the flywheel nut on the e-shaft until it has popped loose. |
Inless you like a flywheel on your head that is. Also tapeing the threads help protect them and the bearings inside. 10 cents worth of electrical tape can save 100s in bearings.
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2 Attachment(s)
Originally Posted by Marek
Also tapeing the threads help protect them and the bearings inside. 10 cents worth of electrical tape can save 100s in bearings.
This is the setup I have found to be the easiest and most effective. The angle is 2x2x6x1/4" aluminum. 3/16" steel will work as well. Note the aluminum square under the end of the puller that is protecting the e-shaft and pilot bearing. Flywheel nut should be flush with the end of the e-shaft. Now gentlemen, and ladies, work smarter, not harder and quit beating you car. :pfanndina https://www.rx7club.com/attachment.p...d=166576&stc=1 https://www.rx7club.com/attachment.p...d=166577&stc=1 |
I bought this kit from harbor freight. Bearing Separator and Puller Set
in the middle of the picture, there is a bar with a hole through it. I used this instead of making my own; too much time and effort. cheaper to pick this up at harbor freight for $40. |
Lot's of good suggestions in the posts above.
When all else fails, read this thread: https://www.rx7club.com/1st-generati...-tool-1058973/ |
Question
[QUOTE=trochoid;5491536]Would you care to explain this in more details. If you are refering to the torrington bearings, then I don't believe you know what, or where, they are. If you are refering to the pilot bearing, that is a $10 or less part and should not even be in harms way unless one uses a puller and sticks the end of it in the end of the e-shaft. If one does that, tape is not going to protect it.
This is the setup I have found to be the easiest and most effective. The angle is 2x2x6x1/4" aluminum. 3/16" steel will work as well. Note the aluminum square under the end of the puller that is protecting the e-shaft and pilot bearing. Flywheel nut should be flush with the end of the e-shaft. Now gentlemen, and ladies, work smarter, not harder and quit beating you car. :pfanndina https://www.rx7club.com/attachment.p...d=166576&stc=1 https://www.rx7club.com/attachment.p...d=166577&stc=1[/QUOT Looks like an idea to try. However, my flywheel appears to have threaded holes that have a thread lead of 1.5 mm and the lead on the two bolts that you appear to thread into the flywheel are a finer thread like 1.25. Can you let me know please if there is a difference between your flywheel and mine in the threaded holes? Also the threaded holes on the flywheel attached to my engine do not appear to go entirely through the flywheel. |
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