Hi 'yall, my first post...

I have an NL Fairlane Ghia Concorde 5L and the voltmenter reads low. It worried me so I got out my test multimeter and checked the voltage at the battery. The multimeter shows 12.7v (motor off) and 14v (motor running) which is absolutely normal. With the motor running, the dash voltmeter doesn't come up to the first thick marker (12v )

Maybe related: when driving the oil gauge fluctuates between mid-range and 7. I assume (har har) that the oil pressure isn't actually doing this.

Anybody seen this voltmeter problem before?

Check your engine earth.

Ok, thanks, I will.

That and your dash earth... Sounds earth related...

Cheers,
Tim