RE: connecting an ammeter

From: Jarrid Gross (Yorba Linda, CA) (GROSS(at)unit.com)
Date: Mon Jan 12 1998 - 10:07:00 CST


 ----------
From: siegfried
|
>Finally hooking up an ammeter I bought from S.S. (Jaeger. Looks great).
>Got it installed on the dash w/ wires out to the bay but now am
>considering how to connect to solenoid.
>
>My car has four families of wire connected to the solenoid:
>
>Family 1. 1-8gauge (brown from the alternator) + 2-10/12 gauge (brown
>to 4TR box) + 1 to the battery positive terminal;
>
>Family 2. 1 to the starter;
>
>Family 3. 1-14gauge to the ballast resistor off a tab on the bottom;
>
>Family 4. 1-12gauge (white/red stripe) to the ignition switch.

No connections will be made to the control box, which is somewhat
different to earlier generator regulators, where the charging output
was available off the control box.

I looked at the schematic on T.J.s website, and tracked down
where the ammeter would go, had the schematic showed one.

This is what needs to be done...

The test below could be done without the gauge mounted
to be certain that the connections are correct prior to final wiring.
Should only take a few minutes. Remove one of the battery
terminals to prevent arcing while loosening the solenoid terminals.

There will be a beefy wire that goes from the B+ terminal on the
alternator to the starter solenoid.

That same terminal on the solenoid goes directly to the battery.

What you need to do is pull the B+ wire from the solenoid, and
connect it to the "+" input of the ammeter.
Leave these two connections off to the side with electrical tape to
insulate them temporarily.

The "-" ammeter lead will go to the original point on the solenoid.

The above lines assumes that you have negative ground,
otherwise reverse connections to the ammeter only.

If all is well when you test, take the insulated pair "amp +, alt B+"
and run a single wire from the alternator to the ammeters + terminal.

Heres a crude schematic

<alt B+>-------------(+ ammeter -)------------+(solenoid)

|

|___________(battery)

|

|___________(Fuse panel)

Good luck, and let us know how it goes.

Jarrid Gross



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