Tue, 06/28/2011 - 15:39
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I just removed the rear axle, rear wheel and final drive. All practically fell off after removing the axle. I was very please how easily it came off the bike considering it was abondoned in the open for the last 20 years. Now, it looks like I'm in for a bit more of a fight removing the swing arm. The bolts came off easily, but what do I do next? Do I tap on one side like I did the axle? I saw on Northwoods Airhead site that there is an extraction tool for removing the bearings. Is that what I need to use in order to remove the swing arm? Next comes the drive shaft removal and then transmission and engine. Then I can send the frame, etc.. for powder coating/painting. I've had this bike since last August and am feeling good about my progress. Thanks for any help regarding swing arm and drive shaft removal.
Jeff
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Tue, 06/28/2011 - 17:33
#2
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Swing arm
So far I have just removed the hex nut #2 with the specially tooled 27mm (borrowed from a friend). I'll remove #3 with an allen wrench. Then it sounds like I will need to purchase the bearing extraction tool to get everything out of the swing arm. I don't want anything in there when I send if off for powder coating. I am assuming that is what I should do. Also, I will get new bearings prior to re-installation. Thank you for your help and for the diagram. I'll keep you posted.
Wed, 06/29/2011 - 17:17
#3
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Progress report
The hinge pins came off easily with, you guessed it, an allen wrench. It looks like the center of the pins allow grease to be squeezed into the bearings from time to time, once the bike is back together. I have ordered the drive shaft removal tool from Northwoods, so that I can get the drive shaft off the bike. Any tricks to detaching the swing arm from the drive shaft. For now, the swing arm is off the frame, but still attached to the drive shaft. I did loosten a large hex nut at the distal end of the drive shaft, but it didn't seem to loosten anything. It seems like with that hex not off, the swing arm should pull off of the drive shaft, but it would not budge. I really need to purchase a manual!! Kind of dumb not to. I think I'll order one of those as well.
Wed, 06/29/2011 - 17:41
#4
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Never been that deep into my
Never been that deep into my bike. Doesn't the driveshaft just pull out of the swingarm housing? It's just splined on the aft end. As for the swingarm and separating it from the final drive, doesn't it just come off with 4 nuts and a seal between? Like this?
http://www.realoem.com/bmw/showparts.do?model=0260&mospid=51885&btnr=33_...
Wed, 06/29/2011 - 21:57
#5
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I don't see the nortwoods
I don't see the nortwoods puller on there site? You will need a good puller and some heat (200-250deg?), some are stuck on very well, when you get it all set up usually a good whack on the end of the puller will do it, and they can(will!) fly a good way so watch out. I had one very stuck and I broke the puller!
Jeff -
What have you removed from the swingarm where it pivots? See this diagram:
http://www.realoem.com/bmw/showparts.do?model=0260&mospid=51885&btnr=33_...
To get the swingarm loose, you first need to remove the thin nuts #2. The Northwoods site has a specially turned 27mm socket to get to these nuts. Then you must have an allen wrench to remove the swingarm pins, #3. Once you have the pins removed, the swingarm will be free. As you said, then you'll need to attack the bearings and races with the appropriate puller.
Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2