tach advice wanted

[flatheadmurre]

Originally Posted by big job

Just my thoughts; for a Sun tack head 'meter' you may need the so called football
style '0 to 4,ooo' rpms just right for a 8BA then you need the Sun sender 8 cylinder the
common EB9 . The sender has two weird volt mercury batteries impossible to find, but
it will work ok with common duracells. The sender doesn't care about pos or neg cause
it gets triggered by the points, it has its own power supply= batteries. Many senders on
Ebay and a lot of NOS in the box but pricey. Many trucks and busses back in the 8BA
days were infact 12vt pos ground . I am working with a Sun super rare, that has road
speed with indicated rpm speed. Its from a 1949 Clipper Coach. The sender needs a
couple of capacitors that I can not find, or take a loan and have the sender converted..
Also the tack has a red line at 3200 rpms and that says 65 miles per hour.

Capacitors are normal foil ones so shouldn´t be an issue replacing them....what value are they ?
And a normal battery of today goes from high to low in voltage making the tach show first higher then it should and at end of battery life lower then it should.

[jimvette59]

I used the electric tachometer from my 1963 chris craft. It works great and is vintage.

[mike42]

I bought the Westach about 6 years ago. It's small and fits great ob steering column. I had a small problem after a couple years and I sent it back and they fixed it no problem.

Mike

[earlyride]

Bosch makes a nice electric one that looks a lot like a sun tach for about $100 if I remember correctly

[big job]

Originally Posted by flatheadmurre

Capacitors are normal foil ones so shouldn´t be an issue replacing them....what value are they ?
And a normal battery of today goes from high to low in voltage making the tach show first higher then it should and at end of battery life lower then it should.

I am home and do not no the capacitor value somthing like 1mfd
60vts??????