Vintage BMW Motorcycle Owners

Been grappling with how to keep track of where to hit and what the result is on several parameters.
Here is version about 5.
As you can see there are a number of things to consider and I am not claiming that this is the best way, just sharing the journey for those who might be interested.

Mal
Toowoomba
Australia
Jacking nut which I need.

Well for those of you who are silly enough to follow a fool here is the next iteration of my data collection sheet.
Image 1 - form used and quite useful. Here is my revised version - which helps me keep track of what I have, I have done and what happened after I did it. I also use a note book which outlines exactly what I do in each step. You can also see I have made little crankshaft diagrams which I just draw in the results of the measurement. I find the diagrams are easier to digest for meaning than the raw figures.

Hello Mal, great minds think alike. Here is my jacking nut on a stick (about 16" long) and various nuts ground to different thicknesses. A great help when pressing to a set depths. Also see this video for pressing with an indicator:

https://www.instagram.com/p/CIMKqzkhXSg ... _copy_link

Hi Mal; Very cool, your work is beyond what I could do.
Just one question, The second bike's swing arm is blue? I'm guessing it had a paint job done sometime in the past, or it was a special order. BMW only painted bikes other than black on special orders. Blue (there were two hues of blue) and before 1968 Blue was a color meant for the escort police of the Swedish Throne. So please tell me it had aftermarket paint ?

scottiesharpe wrote: ↑

Fri Dec 04, 2020 1:41 pm

Hello Mal, great minds think alike. Here is my jacking nut on a stick (about 16" long) and various nuts ground to different thicknesses. A great help when pressing to a set depths. Also see this video for pressing with an indicator:

https://www.instagram.com/p/CIMKqzkhXSg ... _copy_link

I looked everywhere for a clip on how to press the crank together without going too far.
Your technique is excellent.

Your jacking nut lever arm is also very interesting. I went with a very fine pitch nut and have found I can put the nut on one side of the web to retain the spacing and then put in press and compress the other side.
I could have used your nut arm when I only push apart the webs without taking crank to the press.

Here is my revised data sheet which may be of use to you, or may not. You may be way past needing to write down stuff.
I found it useful when thinking through where to press next, especially since my crank had the front web pushed on really skewiff.
Thank you for your suggestions, much appreciated.

Mal

lindquist7672 wrote: ↑

Fri Dec 04, 2020 8:07 pm

Hi Mal; Very cool, your work is beyond what I could do.
Just one question, The second bike's swing arm is blue? I'm guessing it had a paint job done sometime in the past, or it was a special order. BMW only painted bikes other than black on special orders. Blue (there were two hues of blue) and before 1968 Blue was a color meant for the escort police of the Swedish Throne. So please tell me it had aftermarket paint ?

Well I lay in bed at 2am in the morning and fear that the work I attempt is beyond what I can do.

Here are some photos of the rear swingarm up close. I even rubbed back a small section to bare metal. However I do not know if this signifies original paint or not. However, unless BMW were slipping the Swedish King a cheap paint job on the sly, I would think the paint layer looks thin and hardly to royal specifications.

What do you think?

Mal

Mal, I didn't read all the posts to your thread. Are you doing a complete repaint? Carl

flyingtpot wrote: ↑

Fri Dec 11, 2020 1:06 am

Mal, I didn't read all the posts to your thread. Are you doing a complete repaint? Carl

Carl I have the intention of repainting the bike. The previous owner painted the bike bright white instead of cream So it doesn't look right to me. I am not planning on a concourse type of bike. I want a bike I can ride not a bike for other people to look at.


Mal

[/quote]

Carl I have the intention of repainting the bike. The previous owner painted the bike bright white instead of cream So it doesn't look right to me. I am not planning on a concourse type of bike. I want a bike I can ride not a bike for other people to look at.


Mal
[/quote]

You've been so meticulous with your restoration/rebuild. My recommendation is to continue the meticulous path with the paint process. After the first scratch, all is well. Plus, you'll have so much fun painting that well designed chassis and fine sheet metal parts.

flyingtpot wrote: ↑

Sun Dec 20, 2020 1:13 am

Carl I have the intention of repainting the bike. The previous owner painted the bike bright white instead of cream So it doesn't look right to me. I am not planning on a concourse type of bike. I want a bike I can ride not a bike for other people to look at.


Mal
[/quote]

You've been so meticulous with your restoration/rebuild. My recommendation is to continue the meticulous path with the paint process. After the first scratch, all is well. Plus, you'll have so much fun painting that well designed chassis and fine sheet metal parts.
[/quote]

Carl

Thank you for your point of view. It all seems so far in the future that I guess anything is possible.
I want to get all the running gear sorted before I resort to cosmetic stuff.
Other things get in the way and slow me down.

Mal