[Healeys] Help with rally computer

[Bruce Steele]

Hi, all.  I'm helping fellow Austin-Healey Assoc of So Cal member Lindsay
Maine sort through boxes of parts collected by his father, Dick.  Among the
flotsam and jetsam is this interesting rally mileage computer.  It looks too
well engineered to be a home project, but so far I've not turned up anything
in my online search that looks like it.  There is no brand nor clue as to
who manufactured it.  The sending unit appears to mount to the speedometer
with the cable take-off, and it operates a cammed wheel on which rides a
lever switch, I presume controlling the current to advance the mileage
meters.  The head unit has a central toggle switch of the ON-OFF-ON type,
and presumably switches current between the mileage trackers.  The red
buttons on the counters zero the readouts.  I don't know the function of the
black buttons, but they seem to be momentary switches.  The head unit is
illuminated by a fairly large center post light.  Can anyone offer any
insights?

 

Bruce Steele

Brea, CA

1960 BN7

 

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