[ Ref. Ronald Hardwig in 210420 MMDigest ]

Hello everyone, I can't help with the solution to the strange vacuum
motor in your unit but can perhaps help with a few pictures of one we
restored last summer which may help during your restoration.

We send this to the customer as the restoration is being completed:
http://www.nickelodeonco.com/sd-nickelodeon-restoration.html 

Hope it helps.

Ron Schmuck - The Great Canadian Nickelodeon Co.
http://www.nickelodeonco.com/