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How do I connect up an Ammeter
Posted: Tue Sep 18, 2007 12:54 pm
by Pikey
Ive managed to find an old smiths 52mm Ammeter (30-0-30), which Id like to connect up on my Pickup. Question is I dont know how to connect it up. A friend commented that I should connect it up to the black regulator box at the top of the bulkhead, but which connections.

The Pickup is Positive earth and still has a dynamo.
Posted: Tue Sep 18, 2007 1:02 pm
by Welung666
Mine is wired so 1 side comes from terminal A on the voltage regulator and the other side is wired to the starter motor side of the starter solenoid (although mine is wired backwards and shows a negative when charging

)
Posted: Tue Sep 18, 2007 1:11 pm
by Pikey
Great thanks for that, I'll have a go at connecting it up. The gauge has already got some heavy gauge 30amp wiring with it, so should be fairly easy to connect up, now I know where they go.
Posted: Tue Sep 18, 2007 2:09 pm
by bmcecosse
Must go inline with the main feed wire from the starter solenoid - or pull switch - obviously not the main power cable from the battery - but the brown wire which joins it at the solenoid. Take great care to double - even treble - insulate the wires to the ammeter because by their nature they are unfused and can carry a very heavy current, easily enough to start a fire if they were to short against a rough edge where they pass through the bulkhead to the gauge.
Posted: Wed Sep 19, 2007 11:05 am
by Pikey
Would I be right in thinking that one wire goes to the A terminal on the regulator and the other wire goes to the Heavy brown wire on the Starter solenoid. Would I have to disconnect the existing brown wire connections on both Terminal A and the solenoid, to achieve the appropiate "series connection" for the ammeter.
Posted: Wed Sep 19, 2007 11:57 am
by alex_holden
You effectively want to splice the ammeter into the middle of that thick brown wire (or replace it with the new wires).