B21 speedo drive

[Greenfield]

I have a rather sad looking speedo drive from a B21 in need of tlc. It has a cork to prevent dirt getting into the mechanism. Presumably there was a removable cover originally to allow access to the gears for lubrication. I anyone able to shed any light on the subject?
Cheers

[militaryron]

Yes they have an interference fit cup shaped disc with an oiler in the middle. Ron

[Greenfield]

Thanks Ron, I'll see what I can cobble together. Are we looking at grease or oil to lubricate the gears?

[militaryron]

A small amount of grease. Ron