Another Fuel Guage Problem

[ESAD757]

Hi

I have a 1960 Moggy Saloon and my fuel guage does not work also,Please could someone tell me what wires should go where i have 3 going to the back of the gauge and one connecting to the sender unit in the boot, I have dismantled the sender and all seems ok,Does the fuel tank need an earth and if it does where is it, and where should it go

How do i test that the guage works

Also i have a black with green thin stripe in the back of the speedo that is not connected to nothing

Thanks

Jason

[blueangelical]

I have the three green wires going into my voltage regulator in the speedo., a light green wire going from the other side of the regulator into the bottom of the fuel guage and black and green wire going from the fuel guage, presumably to the fuel tank sender unit..

read the previous postings on fuel guages, loads of info in there too..

[Willie]

The earth side of the circuit is provided by metal; to metal contact between
the fuel tank and the body. If the tank has been throughly painted etc then it
is quite possible to have no contact between the tank and body until the fixing
screws and their surrounding areas are cleaned back to bare metal.

[ESAD757]

Hi

I am still struggling I have tested the fuel gauge float by shorting out the wire to the float onto a good earth; This should have caused the fuel gauge to register full.

I then connected a good earth from the Speedo and then shorted out the 2 terminals on the back of the fuel gauge and this did not work. What has been happening intermittently is that when the Speedo is hanging down from the hole, when the case touches the keys in the ignition the gauge goes straight to full, then if I turn off the Speedo light under the Speedo the gauge goes back off the zero???

HELP

Jason

[Willie]

Jason....see under 'Fuel Gauge' in Electrical.