Wiring a trio of Gauges - Autometer

Howdy,

Ive got a trio of electrical Autometer gauges to wire up. They are Volts, Oil Pressure and Water Temp. Just wondering what is the best way to wire them up? Each gauge has +ive and -ive for the light as well as +ive, -ive and the wire to the sender.

Can I daisy chain the wires or does each gauge need to be wired to -ive and a +ive source individually?

Also, where is best place to plumb in the oil pressure sender on a black 308? Is there a port for it already?

Cheers,

T

Howdy,

Ive got a trio of electrical Autometer gauges to wire up. They are Volts, Oil Pressure and Water Temp. Just wondering what is the best way to wire them up? Each gauge has +ive and -ive for the light as well as +ive, -ive and the wire to the sender.

Can I daisy chain the wires or does each gauge need to be wired to -ive and a +ive source individually?

Also, where is best place to plumb in the oil pressure sender on a black 308? Is there a port for it already?

Cheers,

T

Hi Tony, it's easier to run the wires in series (daisy chain) than individually. What i did with my gauges, was to run the positives from the gauges into a single wire, and connect that to a dash lighting wire. That way the lights on the gauge will dim with the dash lights when you turn the knob on the light switch (resistor). Join the earth wires together and attach to the metal frame of the dash, close to the gauges.
You can also run the positive to a different lighting circuit, ie the supply to the glove box light (think thats only on with the lights), park lights etc so the lights wont dim with the switch.
It pays to disconnect the battery when doing any electrical work, so as not to short/blow any cuircuits.
Oil sender ports are on the oil filter housing, but there may be others in the block. Others may be able to help you there.
Good luck
Simon

Thanks for the replies gents. After reading Josh's response it dawned on me that daisy chaining (the way I had it in my head) wouldnt work either. I was thinking about running +ive to +ive to +ive LOL. Perhaps I should draw myself a little diagram before asking silly questions hehehehe

+ve to +ve to +ve is the correct way (parallel) if you do +ve to -ve to +ve to -ve then its in series and will have voltage drops.

Do what Kermit said... he just meant parallel not series im sure.

Righto, so I actually had it correct in my head after all (scenario A). Thank you for the time taken to visually explain this, it really helps

Cheers,

T

Thanks for clearing that up guys. And yes, i did use the wrong terminology. My Bad:tomaatit: