Dan :
All the other stock gauges on a TR3/A/B are mechanical, so there's no way to
test the fuel tank sender by wiring it to another gauge.
Randall
59 TR3A "daily driver wanna be"
On Tuesday, July 06, 1999 12:45 PM, DANMAS@aol.com [SMTP:DANMAS@aol.com] wrote:
>
> In a message dated 7/4/99 8:38:54 PM Eastern Daylight Time,
> moag@ix.netcom.com writes:
>
> > Another problem encountered when testing out my new wiring harness; the fuel
> > gauge doesn't work. When the ignition turns on it goes to Full (even with
> an
> > empty tank). When I reach in with a wire and pull up the sender so it
> thinks
> > that it is full; the gauge now drops to 1/2 --- but never any lower. I
> > switched wires at the gauge with no effect. I changed which post I attach
> to
> > on the sending unit with no effect. BTW --- positive ground with alternator
> > involved.
>
> Dave,
>
> Since the gauge responds, I would suspect it's the sender that's bad. Try
> swapping the leads from this meter to one of your other meters that is
> working (electrically, they are the same - only the markings differ - at
> least that's true on the TR6). If the symptoms swap from gauge to gauge, then
> you know the sender is the problem, not the gauge. If not, then it's the
> gauge that's bad.
>
> Or, go to Radio Shack and buy a couple of 100 ohm resisters. Use one in
> series with the lead from the gauge and ground. You should get "about" half
> scale reading. use two in series for 200 ohms, and you should get about a 1/4
> scale reading. Use two in parallel, 50 ohms, and you should get around 3/4
> scale reading. Actual values are not important, only that the gauge responds.
> Stick the resister in your tool kit, and use them the next time you have a
> bad gauge reading problem.
>
> Dan Masters,
> Alcoa, TN
>
> '71 TR6---------3000mile/year driver, fully restored
> '71 TR6---------undergoing full restoration and Ford 5.0 V8 insertion - see:
> http://members.aol.com/danmas/
> '74 MGBGT---3000mile/year driver, original condition - slated for a V8 soon
> '68 MGBGT---organ donor for the '74
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