Topic: testing speedo and tach?

[azuredesign]

Can I test spin the tach/speedo with the opposite cable end chucked in a variable speed drill or die grinder?if so, clockwise, ie same direction as the dial wants to turn?

Thanks for your consideration and help!

[strynboen]

yes but be care it not are get flying aut of yours hands..if there gets vibrasione..i just try to turn vith fingers to get  dierktion put a nail in hvere the cabel goes inn..and put it in a battery drillmashine,,

[azuredesign]

Thanks for the warning!

[Garage_guy_chris]

I made a tool to do this i cut an old speedo cable about 8" long on the outer casing and 10" long on the drive cable. Screw it into the gauge and chuck the drive cable into a drill. and spin away, although my dewalt cordless drill will only do about 35mph or 1800 rpm. a dremel might work too but i havent tried in fear of over spinning the gauges

[krusty]

I made a tool to do this i cut an old speedo cable about 8" long on the outer casing and 10" long on the drive cable. Screw it into the gauge and chuck the drive cable into a drill. and spin away, although my dewalt cordless drill will only do about 35mph or 1800 rpm. a dremel might work too but i havent tried in fear of over spinning the gauges

I've done the same except I used the inner cable only. It's been very handy testing old clocks.

[azuredesign]

Thanks guys! I thought it might be possible.
All best!

[Grinnin]

Your thread title says "testing".  Test at various tilt angles too.

These old gauges have bronze plain bearings inside and they wear differently on top and bottom.  I had one speedometer that would freeze in various positions on the bike but seemed to work fine with a drill.  Only by tilting the gauge the same as its mounted position was I able to reproduce the problem.

I've always used a short outer cable plus short inner.

[azuredesign]

Thanks, will do!