On Thu, 20 Nov 1997 18:33:13 -0700 Lance Brown <lance(at)scruznet.com>
writes:
>Hi all,
>
>Trying to figure out how to hook up an electronic tach from a series
>IV
>but I am having trouble, which is the tach signal lead on the back of
>the tach? Is it the threaded stud or the spade terminal and if its
>the
>stud what is the spade terminal for? If no one knows maybe someone
>could post Tiger Toms E-mail address, he rebuilt it for me.
>
>Thanks,
>Lance Brown SII wiring nightmare
On a negative ground car.....
The ignition switch power ("+12v") goes to one terminal, and the coil +
goes
to the other. I dont remember which was which (spade input or spade
output).
You wont hurt anything if you have the two reversed, but the incorrect
connection
will not work.
The text schematic is...
|IGN SW|----------(tach)----------------[+coil
coil-]--------------<points>------- Chassis
In this way, the tach senses the closure and opening of the points
through an internal
inductive pickup.
Hope this helps.
Jarrid
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