Wiring Help.......Ricks Tanks

[kwhizz]

I was trying to get the wiring finished up today with regards to the fuel system........Was just wondering if anyone knows which wire is the ground wire on the fuel level sending unit............white or black??

http://i13.photobucket.com/albums/a251/kwhizz/66%20SS%20Chevelle/null_zps8117abf9.jpg


Thanks
Ken

[GregWeld]

That should be easy Ken.... Get out your Volt/Ohm meter and see which one has continuity to ground... the other shouldn't. My guess is BLACK is ground...

[kwhizz]

No continuity with either????????????

[kwhizz]

Ricks does quality work.......But.....there was absolutely no info included with the Tank.....I talked to Hector a while back and he told me which was which........But...........LOL

[GregWeld]

You've got to trip it with the float.....

[GregWeld]

Should measure 90 ohms from 0 to 90 thru full swing of the float -- 90 being full..


So ground the black lead and see if measuring the other with ohms... does it swing from zero to ?

[GregWeld]

To be clear -- when I say ground the black lead -- I mean hook your volt ohm meter BLACK (-) lead to the black lead from the sender -- and the positive lead (red) to the white wire --- and then set your volt ohm meter to read Ohms (the inverted horseshoe symbol) ---- and then move the float.

[kwhizz]

Can't get at the float.......It's a vertical movement float like an elevator......I checked the OHM readings on both wires and got the same thing....as I remember it was about 10 OHMs......By the way.....Merry Christmas!!!

Me

[wiedemab]

You should be able to turn the tank over to get the float to go to full, assuming it's still out of the car and not full of gas. Worst case, if it's in the car, you could measure the resistance, then put some gas in it and measure it again.

[kwhizz]

Plus ........The tank is already installed in the car........

[dhutton]

If you flip the tank over the resistance should swing to the other end.

Edit: never mind....

Don

[MaxHarvard]

IIRC from my install the black wire is the ground wire.

[kwhizz]

I'll put some gas in the tank......That will answer the question once and for all......

Thanks again.......and Merry Christmas to all.........

[GregWeld]

I'll put some gas in the tank......That will answer the question once and for all......

Thanks again.......and Merry Christmas to all.........



WTF -- Don't you have a rotisserie? HAHAHAHAHAHAHA



I'd bet my bottom dollar the black is the ground...


Merry Christmas to you too Ken!

[MarkM66]

If black isn't ground, it should be.

If it's not, then you know it's the other way around. :)

[Che70velle]

I'd go with Greg's advice on this. Most automotive and marine fuel senders use black as ground.

[kwhizz]

Got it all hooked up........Thanks.......

Voltmeter Guy..........LOL

[redefined]

If black isn't ground, it should be.

If it's not, then you know it's the other way around. :)

I agree!!

And glad you got it hooked up! That's a nice lookin tank.