brook.reams
B Reams
1977 R100RS Project: Remove Drive Shaft & Swing Arm Bearings
I'm going to have the swing arm powder coated. So I remove the drive shaft to avoid any possibility of damage to it and the swing arm bearings. I will replace the swing arm bearings as they are likely 40 years old and there is rust in many places on the bike so it's possible the swing arm bearings have not been cared for.
<a title="Swing Arm with Drive Shaft" href="https://www.flickr.com/photos/brook-reams/30147200503/in/album-72157674702984351/"><img src="https://c8.staticflickr.com/6/5710/30147200503_93ef955e52_z.jpg" alt="Swing Arm with Drive Shaft Inside" width="640" height="480" /></a>
Swing Arm with Drive Shaft Inside
I use a tool from <a href="http://www.cycleworks.net" target="_blank">Cycle Works</a> to pull the bell housing off the end of the drive shaft that fits into the rear drive unit. Then the shaft slides out of the swing arm housing toward the transmission end of the swing arm. The tool made it very easy to remove the bell housing. The housing is secured by a nut that is torqued quite high and by a taper in the housing and the end of the drive shaft, so it can take a lot of leverage to break the bell housing loose from the drive shaft. Mine came off quite easily.
You can read about how I do this work here:
<ul class="children">
<li class="page_item page-item-4694"><a href="http://brook.reams.me/bmw-motorcyle-rebuilds/1977-bmw-r100rs-rebuild-project-index/33-bmw-1977-r100rs-remove-drive-shaft-swing-arm-bearings/">33 BMW 1977 R100RS Remove Drive Shaft & Swing Arm Bearings</a></li>
</ul>
Here are a couple pictures from the write-up.
<a title="Drive Shaft Bell Housing Nut" href="https://www.flickr.com/photos/brook-reams/30481914790/in/album-72157674702984351/"><img src="https://c7.staticflickr.com/6/5468/30481914790_185fe6d372_z.jpg" alt="Drive Shaft Bell Housing Nut" width="640" height="480" /></a>
Drive Shaft Bell Housing Nut
<a title="Cycle Works Drive Shaft Bell Housing Removal Tool" href="https://www.flickr.com/photos/brook-reams/30746333886/in/album-72157674702984351/"><img src="https://c7.staticflickr.com/6/5532/30746333886_e0c4cb00d9_z.jpg" alt="Cycle Works Drive Shaft Bell Housing Removal Tool" width="640" height="480" /></a>
Cycle Works Drive Shaft Bell Housing Removal Tool
<a title="Cycle Works Drive Shaft Bell Housing Removal Tool" href="https://www.flickr.com/photos/brook-reams/30147197043/in/album-72157674702984351/"><img src="https://c4.staticflickr.com/6/5609/30147197043_1ea1dcbabc_z.jpg" alt="Final Assembly of Cycle Works Drive Shaft Bell Housing Removal Tool" width="640" height="480" /></a>
Final Assembly of Cycle Works Drive Shaft Bell Housing Removal Tool
<a title="Drive Shaft Removed From Swing Arm" href="https://www.flickr.com/photos/brook-reams/30147196513/in/album-72157674702984351/"><img src="https://c2.staticflickr.com/6/5557/30147196513_48a133cc31_z.jpg" alt="Drive Shaft Removed From Swing Arm" width="640" height="480" /></a>
Drive Shaft Removed From Swing Arm
I'm going to have the swing arm powder coated. So I remove the drive shaft to avoid any possibility of damage to it and the swing arm bearings. I will replace the swing arm bearings as they are likely 40 years old and there is rust in many places on the bike so it's possible the swing arm bearings have not been cared for.
<a title="Swing Arm with Drive Shaft" href="https://www.flickr.com/photos/brook-reams/30147200503/in/album-72157674702984351/"><img src="https://c8.staticflickr.com/6/5710/30147200503_93ef955e52_z.jpg" alt="Swing Arm with Drive Shaft Inside" width="640" height="480" /></a>
Swing Arm with Drive Shaft Inside
I use a tool from <a href="http://www.cycleworks.net" target="_blank">Cycle Works</a> to pull the bell housing off the end of the drive shaft that fits into the rear drive unit. Then the shaft slides out of the swing arm housing toward the transmission end of the swing arm. The tool made it very easy to remove the bell housing. The housing is secured by a nut that is torqued quite high and by a taper in the housing and the end of the drive shaft, so it can take a lot of leverage to break the bell housing loose from the drive shaft. Mine came off quite easily.
You can read about how I do this work here:
<ul class="children">
<li class="page_item page-item-4694"><a href="http://brook.reams.me/bmw-motorcyle-rebuilds/1977-bmw-r100rs-rebuild-project-index/33-bmw-1977-r100rs-remove-drive-shaft-swing-arm-bearings/">33 BMW 1977 R100RS Remove Drive Shaft & Swing Arm Bearings</a></li>
</ul>
Here are a couple pictures from the write-up.
<a title="Drive Shaft Bell Housing Nut" href="https://www.flickr.com/photos/brook-reams/30481914790/in/album-72157674702984351/"><img src="https://c7.staticflickr.com/6/5468/30481914790_185fe6d372_z.jpg" alt="Drive Shaft Bell Housing Nut" width="640" height="480" /></a>
Drive Shaft Bell Housing Nut
<a title="Cycle Works Drive Shaft Bell Housing Removal Tool" href="https://www.flickr.com/photos/brook-reams/30746333886/in/album-72157674702984351/"><img src="https://c7.staticflickr.com/6/5532/30746333886_e0c4cb00d9_z.jpg" alt="Cycle Works Drive Shaft Bell Housing Removal Tool" width="640" height="480" /></a>
Cycle Works Drive Shaft Bell Housing Removal Tool
<a title="Cycle Works Drive Shaft Bell Housing Removal Tool" href="https://www.flickr.com/photos/brook-reams/30147197043/in/album-72157674702984351/"><img src="https://c4.staticflickr.com/6/5609/30147197043_1ea1dcbabc_z.jpg" alt="Final Assembly of Cycle Works Drive Shaft Bell Housing Removal Tool" width="640" height="480" /></a>
Final Assembly of Cycle Works Drive Shaft Bell Housing Removal Tool
<a title="Drive Shaft Removed From Swing Arm" href="https://www.flickr.com/photos/brook-reams/30147196513/in/album-72157674702984351/"><img src="https://c2.staticflickr.com/6/5557/30147196513_48a133cc31_z.jpg" alt="Drive Shaft Removed From Swing Arm" width="640" height="480" /></a>
Drive Shaft Removed From Swing Arm