Trying to get a fully working Speedometer

[mrsnak]

I think working out the TPM will be the tricky part for me. Have no idea what the Datsun 210 motor cable turns at.
BTW - I also notice that none of those EBay auctions for used speedos I looked at said whether or not they worked.
Of course, I would have emailed the seller, but it raises a red flag not to have said anything.

I did come across a seller here in the US who was just as oblique in his auction description, and when I asked whether or not it worked, he said that he had not tested it. When I asked him to do the simple drill test to it, he said that he did not have time to do so.
Needless to say, I avoided that one!

[MarkyB]

Are all the number wheels the same apart from the colour of the numerals?

If they are just use one from the spare speedo to replace the worn one.

[RobThomas]

http://home.comcast.net/~rhodes/speedo.pdf

Worth a look?

[mrsnak]

http://home.comcast.net/~rhodes/speedo.pdf

Worth a look?

LOL, I downloaded that on a another forum member's tip. Extremely well-written and documented.
Visualize my eyes glazing over before falling into my pint of Newcastle.

[RobThomas]

http://www.spridgetguru.com/Smiths_Speedometer.html

...or this one?