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Fuel Gauge sender unit
Posted:
Thu Sep 08, 2016 4:17 pmby MikeBee
Hi,
I suspect that this will be only the first of a long list of questions as I get my 1966 S3 fhc ready for the road.
question: is there any way I can bench test the fuel gauge sender unit before installing it and maybe having to pull it all out again?
appreciate any help.
thanks.
Mike
Re: Fuel Gauge sender unit
Posted:
Thu Sep 08, 2016 5:20 pmby ericbushby
Yes,
It is only a variable resistor.
There are two types. One should read form zero to 90 ohms as you move the arm from one end to the other.
The later type is 20 ohms to 230 ohms
I expect your car to have the 90 ohm version but it may have been changed.
Eric in Burnley
1967 S3SE type 45
Re: Fuel Gauge sender unit
Posted:
Thu Sep 22, 2016 11:57 amby MikeBee
Eric,
many thanks, I'll try and have a go this weekend.
Regards
Mike
Re: Fuel Gauge sender unit
Posted:
Fri Sep 23, 2016 12:14 amby stugilmour
Mike, don't forget to use a 10v supply during your test. It is fed from the voltage stabilizer, and will read incorrectly if you are bench testing with 12 v supply.
HTH
Stu
Re: Fuel Gauge sender unit
Posted:
Fri Sep 23, 2016 5:05 pmby The Veg
But wouldn't voltage confuse the ohmmeter?
Re: Fuel Gauge sender unit
Posted:
Fri Sep 23, 2016 5:24 pmby john.p.clegg
It certainly would.....I suppose Stu is thinking of bench testing the sender against the gauge on the bench.
John
