Sun Tachometer Retrospective

[AnobleL74]

i love these old sun tachs also, but after owing 2 vintage sun super tach ll that only worked erratically, i tried all the gismos and tricks to fix them but finally i gave up,
problem may be because my chevelle and truck both have HEI.
ended up with a $50 bosch mini tach from advance auto that looks retro like the sun tach and works perfectly.

[Keith Seymore]

Originally Posted by Keith Seymore

My tach finally quit working.

This might not be germaine but I started it back when the weather was cold to let the car run some and the tach went to about 1/2 of what it should be reading.

I replaced the batteries today as described above and that didn't do it.

I'm going to make sure the "new" batteries are not dead and after that I'm out of ideas.

Any suggestions?

Thanks in advance -

K

Fixed it.

I checked the removed batteries and they were still at 1.36 volts.

I cleaned up one of the contacts, which had some corrosion on it, and put them back in with some dielectric grease. I'm back in business.

This September that tach will have been in use for 53 years!

K

[rideblue00]

Really nice write-up!