Testing Gauges ? 69
Thread Starter
Burning Brakes
Joined: Feb 2002
Posts: 752
Likes: 31
From: Melbourne Australia
Testing Gauges ? 69
Anyone know how to bench test ammeter and fuel gauge on 69? I'm electronics savvy and have equipment....any test circuits and measurements welcome!
Thanks,
Joe
Thanks,
Joe
Drifting
Joined: May 2003
Posts: 1,634
Likes: 2
From: Melbourne, Victoria, Australia, the World
Re: Testing Gauges ? 69 (jyounane)
I believe the fuel sender is 90 ohms.
vary the input between ground and 90 ohms will give you empty to full.
Other side of the gauge to 13.8 volts.
Cant help with the Ammeter- my AIM shows the 2 wires going back to the regulator and ground.
:cheers:
BTW, when does Cali 1 get out of it's container?
vary the input between ground and 90 ohms will give you empty to full.
Other side of the gauge to 13.8 volts.
Cant help with the Ammeter- my AIM shows the 2 wires going back to the regulator and ground.
:cheers:
BTW, when does Cali 1 get out of it's container?
Thread Starter
Burning Brakes
Joined: Feb 2002
Posts: 752
Likes: 31
From: Melbourne Australia
Re: Testing Gauges ? 69 (RHD '68 L89)
James,
I see two terminals and ground on the fuel gauge ....I'll go and figure out what's +ve and give it try.
Also the needle is heavily damped...do you think that's normal?
I paid for freight and duty today...should be at Fantasy Junction by Wednesday, I'll let you know.
Thanks,
Joe :D
I see two terminals and ground on the fuel gauge ....I'll go and figure out what's +ve and give it try.
Also the needle is heavily damped...do you think that's normal?
I paid for freight and duty today...should be at Fantasy Junction by Wednesday, I'll let you know.
Thanks,
Joe :D
Drifting
Joined: May 2003
Posts: 1,634
Likes: 2
From: Melbourne, Victoria, Australia, the World
Re: Testing Gauges ? 69 (jyounane)
The damping is normal. If fuel was sloshing about during hard driving the needle would be all over the place.
The pink wire is power from the fuse box.
The tan wire is from the sender. I am pretty sure the ground is required for the gauge to work. :cheers:
The pink wire is power from the fuse box.
The tan wire is from the sender. I am pretty sure the ground is required for the gauge to work. :cheers:
Thread Starter
Burning Brakes
Joined: Feb 2002
Posts: 752
Likes: 31
From: Melbourne Australia
Re: Testing Gauges ? 69 (RHD '68 L89)
James,
thanks, Fuel Gauge checks out OK! Ammeter appears to work but obviously indicates +\- 40A at much lower currents on the bench, reacting to a signal from the inbuilt regulator in the alternator. I say obviously, because the wiring to the gauge is definitely not 40A stuff!
Looks like I've got a full set of gauges working for my 69 project...even the clock.
Thanks again,
Joe
thanks, Fuel Gauge checks out OK! Ammeter appears to work but obviously indicates +\- 40A at much lower currents on the bench, reacting to a signal from the inbuilt regulator in the alternator. I say obviously, because the wiring to the gauge is definitely not 40A stuff!
Looks like I've got a full set of gauges working for my 69 project...even the clock.
Thanks again,
Joe
