ausmini :: View topic - correct wiring for a Smiths tacho

Hi all
Bought a smiths tacho (new).
Getting a new MK2 harness.

These are the wiring instructions for the tacho:
"Green- connect to switched ignition power source (+ve) via 3A fuse. - use you switched fuse in your fusebox (only on when the ignition key is on)
Black- connect to ground (-ve)
Red/white- connect to dash lamp power - wire into one of the dash lamps behind your speedo or gauges.
brown/slate- used (hour meter only) - not required so ignore this wire. maybe insulate with tape and tie it up. Signal input alternatives
the circuit diagram showsall alternatives,only one is needed.
white/black- connect tacho output of electronic ignition - Insulate with tape and tie it away.
red/blue- connect to negative side of ignition coil (distributor side) - use this one as it says, on the -ve post on your coil

Author:	cd [ Sat Apr 18, 2009 11:51 pm ]
Post subject:	correct wiring for a Smiths tacho
Hi all Bought a smiths tacho (new). Getting a new MK2 harness. These are the wiring instructions for the tacho: "Green- connect to switched ignition power source (+ve) via 3A fuse. Black- connect to ground (-ve) Red/white- connect to dash lamp power brown/slate- used (hour meter only) Signal input alternatives the circuit diagram showsall alternatives,only one is needed. white/black- connect tacho output of electronic ignition red/blue- connect to negative side of ignition coil (distributor side)" will be running a pulsar dizzy. What addition wiring do I need to add to the harness? First time Ive had to do this & unsure of what wires goes where, & which ones I dont need to connect. Any help would be greatly appreciated, better to ask a silly question now, than regret later. Cheers Craig

Author:	Mick [ Sun Apr 19, 2009 12:05 am ]
Post subject:	Re: correct wiring for a Smiths tacho
cd wrote: Hi all Bought a smiths tacho (new). Getting a new MK2 harness. These are the wiring instructions for the tacho: "Green- connect to switched ignition power source (+ve) via 3A fuse. - use you switched fuse in your fusebox (only on when the ignition key is on) Black- connect to ground (-ve) Red/white- connect to dash lamp power - wire into one of the dash lamps behind your speedo or gauges. brown/slate- used (hour meter only) - not required so ignore this wire. maybe insulate with tape and tie it up. Signal input alternatives the circuit diagram showsall alternatives,only one is needed. white/black- connect tacho output of electronic ignition - Insulate with tape and tie it away. red/blue- connect to negative side of ignition coil (distributor side) - use this one as it says, on the -ve post on your coil The wires mentioned above will need to be run to the respective parts of the car.

Author:	cd [ Sun Apr 19, 2009 12:33 am ]
Post subject:
Thanks Mick Thats what I thought but I wanted to check.

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