Speedometer linkage?

[dklawson]

Just for the record, the "flywheel thing" is a magnetic coupling to the aluminum drag cup. The drag cup is supported on a needle bearing and according to Anthony Rhodes, the needle bearing should not be lubed at all.

You can get a copy of the PDF from Mr. Rhodes web site:
https://home.comcast.net/~rhodes/speedo.html
or faster download at
https://pcbunn.cacr.caltech.edu/jjb/TR6/speedo.pdf

 

[Jim_Gruber]

Yes I did replace the reed switch. The packaging and casing on the Hamlin Reed Switch made it easier to mount and it had a nice flat surface to glue to. All of thiis stuff is really simple just some cogitating on different ways to do things using modern technology.

 

[Jim_Gruber]

Actually I replaced the reed switch because the little round button magnet I glued on with 5 minute epoxy flew off and damaged the original reed switch. Hence my reference to using J.B. Weld to glue the magnet to the brake drum. Probably caused by heat, softened the 5 minute epoxy. A much better design and solution.