[Roadsters] Fuel gauge sender rebuild
Pat Horne
patintexas at icloud.com
Thu Sep 1 18:59:02 MDT 2016
Just reread your initial post. If you are grounding the lead at the tank & the gauge goes to full, there is a bad connection either between the sender element & the gauge wire connection, between the element & the slider, or the slider & ground. This assumes that the element connects to the gauge wire, If the slider connects to the gauge wire then interchange ground & gauge wire in the above description.
It's possible that the Nissan wire is insulated. I'd have to look @ it. If it's insulated the insulation would need to be removed where the slider touches it.
Peace,
Pat
On Sep 1, 2016, at 6:15 PM, Charles Hubbard <charlie at hubco.com> wrote:
Thanks for the tip. Yes, it is a unique part for that year 1964. Does the resistor wire that Nissan used have some sort of coating. I ask because I saw a write-up for a VW bus where they were re-winding their sender. It said that the windings can't touch. Their example had much bigger wire, used epoxy to hold the windings in place and had a few millimeters of spacing between windings.
Respectfully,
Charlie Hubbard
HUBCo Communications, Inc.
W: 469.293.3081
M: 214.507.5569
www.hubco.com
charlie at hubco.com
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From: Pat Horne [mailto:patintexas at icloud.com]
Sent: Thursday, September 01, 2016 5:16 PM
To: Charles Hubbard <charlie at hubco.com>
Cc: Datsun roadster list <datsun-roadsters at autox.team.net>
Subject: Re: [Roadsters] Fuel gauge sender rebuild
Charlie,
The wire is not copper, but a resistance wire. I think it is only connected on one end. I suppose the wiper is grounded. I am not familiar w/1500s so it may be different. You should be able to measure the resistance of a length of the wire, convert it to ohms/foot & find some replacement. Is the sender different from the 1600 sender?
Peace,
Pat
Pat Horne
We support Caldwell County Habitat for Humanity
On Sep 1, 2016, at 1:20 PM, Charles Hubbard via Datsun-roadsters <datsun-roadsters at autox.team.net> wrote:
Has anyone ever rebuilt the copper winding on a 1964 1500 fuel gauge? The wire from the winding broke off my tank sender. I ended up soldering it back onto the windings and believe that it used to be a solid strand of copper from end to end. Since the winding is the connection between the ground and the gauge, I do not believe that the long end of the winding grounds to the housing. The 1500 is a positive ground and grounding the wire from the gauge pegs it full. Unlike later years, there is no resistor between the sender and the gauge on a 1500. A dab of solder now goes across sever of the windings. The most that the gauge will show now is 1/2 full. At least it's not showing 1/2 empty! ;-)
Any ideas on how to go about this and what wire to use would be appreciated.
Respectfully,
Charlie Hubbard
1964 SPL310 1500
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