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Re: [Healeys] fuel gage/sending unit

To: Healeys <healeys@autox.team.net>
Subject: Re: [Healeys] fuel gage/sending unit
From: mike brooks <hypercubic@yahoo.co.uk>
Date: Thu, 23 Aug 2007 02:09:25 -0700 (PDT)
I rebuilt my BN2 gauge a couple of years ago and found the MGA info very
useful. However, when calibrating the gauge I did not have much success with
the resistors. Instead, I removed the sender unit from the tank and connected
the body of the sender wire with a temporary wire to a suitable ground point
on the Healey. Of course the sender wire was still connected to the fuel gauge
through the wiring loom. Then, moving the sender arm from one end to the other
gives you empty and full. The empty and full readings on the gauge are got by
adjusting the two screws in the back of the gauge per the MGA instructions.
"MGA" is correct that the two adjustments interact. The best I could get was
Full shows Full and Empty shows 1/4. However, once off the Full stop, the
gauge is fairly consistent. I tend to fill up with petrol when the gauge shows
just under 1/2 and that gives me a useable range of around 250 miles. BTW the
gauge was non-functioning when I got the
 car. When I took the gauge apart, one of the coil windings had broken where
it was soldered onto one of the little posts. I carefully unwound the coil by
one turn and resoldered, on the basis that one less turn in probably several
hundred shouldn't make much difference to the reading.

Rgds

Mike Brooks
Milano
Italy


Message: 9
Date: Wed, 22 Aug 2007 18:57:03 -0700
From:
"BJ8Healeys" <sbyers@ec.rr.com>
Subject: Re: [Healeys] fuel gage/sending unit
To: <healeys@autox.team.net>
Message-ID:
<NOEFJBPLAINEGFAIHBHKEEEMDFAA.sbyers@ec.rr.com>
Content-Type: text/plain;
charset="us-ascii"

The MGA Guru website is still active and has been updated
since I was there
last: http://www.mgaguru.com/mgtech/electric/fg_06.htm
There is a ton of good information there, including how to calibrate your
fuel
gauge.  I don't know if anyone was ever able to get their gauge
calibrated
properly following the instructions, but not me.
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