Hello Charles,
Not sure how I forgot about him. Between his site and the Chicagoland
tech tips, you *almost* don't need a manual lol.
Here's what I've found so far:
When I ground the wire that plugs into the sending unit with the
engine running, the fuel gauge will go from its lowest point all the
way past the F. Unground, and it goes back down.
I used a small handheld multi-tester to check the resistance of the
sending unit. Its scale is kind of small and hard to read below 100
ohms. But when connected and grounded, looks like the reading is
between 70 and 80 ohms. The fuel tank is nearly full. The leads on the
tester are too short to stay connected if I try shaking the car. My
digital tester has longer leads, but seemed confused when I tried this.
Guess this means that the gauge and stabilizer are both good and that
the problem lies either with the sending unit or some connection
between the sending unit and the gauge.
Thank you,
-Bill
On Jun 13, 2009, at 11:32 AM, Charles Hill wrote:
> Bill,
> Have you checked Barney Gaylord's web site (www.*mgaguru*.com)? He
> has a lot of good info there. It is one of the first places I look
> when I have a problem with LBCs - not just MGs.
>
> Charles Hill
>
> William Killeffer wrote:
>> Hey everyone,
>>
>> The fuel gauge on my 1974 MGB has not been working for awhile.
>> After starting the car, the needle will rise up to a point between
>> the two lowest markings on the gauge and stay there. Initially, I
>> thought the float on the sending unit might have failed, but on a
>> really hot day recently, the gauge came to life and gave a reading
>> that seemed more or less accurate based on the mileage since the
>> last fill-up. But it didn't last too long and went back to its
>> dormant state after about 20 minutes.
>>
>> It did it again last weekend. It was a hot day that day as well.
>> Once again, the reading seemed to be as accurate as those gauges
>> ever are. Something I've noticed both times is that it seems a
>> little balky when it does this. The needle's movement isn't
>> smooth, whereas the temp gauge needle always moves smoothly. It's
>> like a connection's bad or the gauge is having problems.
>>
>> The temp gauge works just fine. Both gauges are plugged into a
>> voltage stabilizer that might be original to the car.
>>
>> I've seen a method that's used to test the operation of the gauge
>> that involves some kind of connection to the wire that plugs into
>> the sending unit.
>>
>> Any suggestions would be appreciated.
>>
>> Thank you,
>> -Bill
>> William Killeffer
>> wkilleffer@comcast.net
>> http://williamkillefferphoto.wordpress.com
>> http://www.flickr.com/photos/williamk1974/
>> Made with a Mac
>>
>
William Killeffer
wkilleffer@comcast.net
http://williamkillefferphoto.wordpress.com
http://www.flickr.com/photos/williamk1974/
Made with a Mac
_______________________________________________
Support Team.Net http://www.team.net/donate.html
Mgs@autox.team.net
http://autox.team.net/mailman/listinfo/mgs
http://www.team.net/archive
|