Steve,
The tank unit is just a variable resistor, through which current flows to
ground. The deflection of the gauge depends on the magnitude of the
current. It should make no difference which way current flows through the
tank unit. If it were important, I think Nissan would have marked the
terminals.
Gary
----- Original Message -----
From: "Steve Harvey" <stebharvey@ameritech.net>
To: <datsun-roadsters@autox.team.net>
Sent: Sunday, March 14, 2010 5:11 PM
Subject: [Roadsters] Gas tank electrical question
>I drove over to Tim's house today and cut out the trunk floor from a Junker
> which I'm going to install in my white 68 L18. I have a very nice gas tank
> that I'll be pulling in as well. My question is, there are two round
> headed
> electrical connecter posts on the tank sending unit. Can I assume that one
> is the positive power post and the other a ground post? If that is
> correct,
> does anyone know which of the two posts is (+) and which (-)?
>
>
>
> Thanks
>
>
>
> Steve
>
> Milwaukee
>
> Hit 51 F today!
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