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Speedometer Cable Thread Size
#1
Does anyone know the following sizes relating to an Austin Seven speedometer?
  • The size of the thread on spigot on the speedometer where the cable screws onto
  • The outside diameter of the spigot
  • The size of the square on the end of the cable
I wish to make a ratio reduction gearbox and knowing this detail would help.

Regards,

Jamie.
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#2
3/4" x 26 .I think the drive square is 5/32"
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#3
The thread is 3/4" BSB.

(Apologies, just re-read the question! 3/4" BSB is the external thread on the brass fitting at the gearbox end to which the cable attaches. I imagine it might be the same at the other end but I can't personally vouch for that...)
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#4
Thank you.
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