You could do it by measuring the resistance of a certain number of wraps and dividing by the number of wraps to get the resistance per wrap. I noticed someone mentioned nichrome wire if we had the diameter or gauge of the wire I could figure it out assuming it is nichrome.

Has Anyone ever found a "Source" for the "Rub Strip" itself ? I have 2 gauges here with the wire on the Strip completely "disintegrated". oh, 1000 grit sandpaper works reals well to clean up the surfaces.

No "Source" for New "Rub Strip" ??

quote Originally posted by Lou6t4gto: No "Source" for New "Rub Strip" ??

Where do you get new contacts?

I have a closely related question :
does anybody have a 3 view drawing or even just a sketch
with the overall dimensions of the Fiero gas tank?
I am using a non-GM fuel gauge in my OPM2000 Pantero Re-Body,
and it would help to know the top to bottom distance
of the shorter and taller portions of this tank
since I may have to use an aftermarket sender to get the ohms
needed to make my crazy Italian gauge read properly !
Cheers,
Dave

I just wanted to say that this tip from the OP works really well.

Before my gauge used to jump all over the place so I took the sending unit apart and polished the resister.
It reads almost perfect now, empty is at 1/4 a tank and full is about 1/4 above full. Once I re-position the needle on the gauge it should be perfect.

http://docs.google.com/docu...dmU/edit?usp=sharing

I'll be doing this soon. There are a couple good sized dents in the tank, it's in good shape, I think the dents were from a forklift, this tank wasn't original. What's the best way to get them out?

[This message has been edited by Stainless1911 (edited 04-04-2014).]

are you able to view the pic in the first page ???? i want to do that on my sendind unit but cant view the pic does it is me computer ????

quote Originally posted by fierogtx: are you able to view the pic in the first page ???? i want to do that on my sendind unit but cant view the pic does it is me computer ????

No, I can't see them either.

The system this forum is running on is antiquated. I'm looking forward to the day when we upgrade to one of the good ones like vbulletin.

------------------
I have a 1987 Fiero, 4 cylinder 5 speed. With an 88 engine.

[This message has been edited by Stainless1911 (edited 06-22-2014).]

Go to Phonedawgz' link a few posts above.....

quote Originally posted by Gall757: Go to Phonedawgz' link a few posts above.....

that dont work on my computer too but will try my girlfriend computer to just make sure it is my computer thanks for the idea

Hey fellas, I wanted to attempt this repair on my 84. It has been sitting for 12 years so of course everything varnished up and I lost the fuel pump as well as level indication. I sent the tank out to a radiator shop and figured I would soak the sending unit in Vinegar. I have used the vinegar trick several times on motorcycle tanks and the like with great success; however I found the downside of this process. Vinegar will eat the material inside the potentiometer that the coils are wrapped around. so let me be the cautionary tale. DO NOT SOAK SENDING UNIT IN VINEGAR. Fortunately The Fiero Store now has sending units in stock again, so I can source one there while I try and find the correct POT to repair the old one.

You can buy a zero to 90 ohm universal sending for cheap at Jegs.

quote Originally posted by phonedawgz: You can buy a zero to 90 ohm universal sending for cheap at Jegs.

I have a write up about it.
How To - - Replace Gas / Fuel sending unit / Gauge sender with a generic one --- pics

Hello,

Today I checked my sender since I had dropped the tank. The car hasn't run in 14 years, so I couldn't recall if the sender worked or not. At any rate, the resistance readings were all over the place. Looking around for help, I found this thread. So I took the potentiometer apart. Sure enough, it was varnished and dirty. So I cleaned it up with scotchbrite and contact cleaner, and now it works. Sort of. The reading was still erratic. So, I looked at it closer, and realized that the ground reference for the potentiometer is through the lever arm. Which has a sloppy fit to the case that is crimped on...well, you get the idea. So I measured resistance grounded on the lever arm itself, and it is perfect and no more erratic readings. So tomorrow I'm going to figure out how to attach a ground wire to the lever. Will let you know how it goes.