Jim,
Early senders and gauges work in reverse to later ones. You can't mix the
two. What you descibe sounds like a later gauge with and early sender. This
combo (if functioning) would read empty when the tank is full, so when you
drive you tank get s "full"! You've solved the energy crisis! ...'-)
Gerard
At 10:12 PM -0700 4/25/02, James Gruber wrote:
>An interesting philosphical questions was presented to
>me tonight. Bugsy's fuel gauge reads empty, dead empty
>with the needle trying to go ever lower still. While
>underneath the rear end yesterday I noticed that the
>Black Ground Wire coming from the sender was hanging
>loose not conencted to a ground. Thinking that was the
>source of the problem I grounded that connenction
>properly and voila I saw the fuel gauge move, and
>move, and move and try to run off of the other end of
>the scale. So which is better half full as I know the
>tank is or half empty which I know it is also.
>
>Now someone mentioned to me something about electrical
>power being reversed going to the sender unit. Power
>needs to go to the ground in this case as the sender
>is a relic of previous positive ground design. I'm not
>sure how to interpret that. Bugsy is a '68 set up for
>negative ground. He does have a '66 1098 engine and
>when I got him from the P.O. the generator had not
>been repolarized for negative ground. I did that part
>correctly when I first got Bugsy and all parts and
>pieces of the electrical system seem to be working
>correctly.
>
>My interpretation of this problem is that I've got a
>bad fuel sender unit. Cheap to replace but a PITA to
>drop the tank to replace the sender unit. Any ideas.
>
>Any problem with leaving things hooked up as is so
>gauge shows full.
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