Fitting electric gauges into vl

[johnni]

Hey all,

Im looking to hook up a electrical water temp and oil pressure gauge into the vl and looking for some info on how to wire them up.

To hook up the accessory 12v power, where would be a good spot to tap into?

The gauge has two wires which need to be grounded, one ground for the gauge and a ground for the negative wire to illuminate the gauge.

Can I run both those wires on the same ground Through one ring terminal connector?

Thank you

 

[Deuce]

You could ground them both together on one ring terminal, but if you connect the illumination wire to existing lighting (heater controls backlight etc) your gauge should come on/off with the rest of your dash lights.

 

[johnni]

If I tap off the ciggie lighter 12v for the two electrical gauges, will that be too much for that circuit? As time to time I use the ciggie lighter to charge my phone and v don't b want to overload it.

 

[Deuce]

If I tap off the ciggie lighter 12v for the two electrical gauges, will that be too much for that circuit? As time to time I use the ciggie lighter to charge my phone and v don't b want to overload it.

That should be fine. Gauge takes bugger all power, and USB charging is low as well.

Heating a metal ring to light up a fag on the other hand......

 

[johnni]

Thanks for that mate.

Is there a way to to hook up the water temp sensor without cutting the top radiator hose and fitting that tee peice which holds the sensor? Like somewhere else I can fit it?

 

[vc commodore]

Maybe have a tee piece off your normal sensor.

I am fortunate enough with my VC, I have a thermostat housing that had provisions for a sender, as well as a sender in the back of the head....So I have used the housing for mine

 

[Deuce]

RB or 308 motor?

 

[johnni]

RB or 308 motor?

Rb30 mate

 

[Deuce]

Rb30 mate

Check the diagram in this thread and see if you can visualize it on your engine.
Look for blanking plugs in the head, or as suggested a tee piece for a current sensor point.

https://forums.justcommodores.com.a...ve-heater-hoses-at-firewall.40946/post-390992

I don't know RB30 well enough off the top of my head to say where as an alternative.