Seems to me that your ohmmeter is telling you lies. If the total resistance
unit is being inserted into the circuit when the float is at the empty
position, the resistance should be about ten times what you are measuring.
If you can get access to a known resistance to measure in order to test your
ohmmeter, I'd say that is a good thing to do!
Dick Benjamin
----- Original Message -----
From: "Bruce Stubblefield" <audiblefeast@xxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Tuesday, May 20, 2003 10:34 AM
Subject: IML: MORE SENDING UNIT
> Thank you both for the explanation. My sending unit
> is out of the tank, and I have opened the rheostat
> housing and confirmed that the brass tab,
> spring-loaded armature, and the rheostat wiring all
> appear intact. I bent the brass very slightly outward
> so that I could hear it scrape across the rheostat.
> However, the resistance I am able to measure goes from
> 0 ohms to about 10 ohms. This doesn't sound like it's
> within your parameters. Any ideas?
>
> Owing you a lunch or at least a hearty handclasp,
> Bruce S.
>
>
>
> If you look carefully at what moves as the float arm
> swings, you'll see
> a
> tiny brass contact which slides along the wires of the
> rheostat, this
> moving
> contact point brings more and more wire length into
> the circuit as the
> float
> arm drops, thus raising the resistance to the 70-80
> Ohm range. These
> values
> are NOT critical - if you have this sort of resistance
> variation,
> anywhere
> in the ballpark of these number (say within 30%), the
> fuel gauge should
> work
> pretty well..
>
> If the sender is doing all this, your problem is
> probably elsewhere.
>
> __________________________________
> Do you Yahoo!?
> The New Yahoo! Search - Faster. Easier. Bingo.
> http://search.yahoo.com
>
>
Back to the Home of the Forward Look Network