[Healeys] fuel gauge calibration

Bob Haskell rchaskell at earthlink.net
Thu Nov 7 04:05:19 MST 2013


See the gauge/sending unit articles at 

Bob Haskell
AHCA 3000 Mk I registrar

On 11/07/2013 01:27 AM, john spaur wrote:
> There have been quite a few posts on this issue but none seem to really
> solve the problem. When I first owned an Austin-Healey it was 6 years
> old and the gauge was fairly accurate as I recall.
> The gauge on the healey was professionally calibrated but it was way
> off, tending to stick at the full side and then rapidly dropping down to
> near empty. Recently I calibrated it by removing the sender and
> adjusting the gauge on the bench but it still sticks toward the full
> side. When the tank is below 1/2 it will start to read towards the 1/2
> and 1/4 marks.
> What's the issue with getting the gauge to read more accurately? I think
> it may have to do with the coils and magnet alignment. I think the coils
> may be out of plumb (due to bending of the case at the nut attachment)
> which causes the magnet to be too close to the armature assembly.
> Has anyone investigated this? Has anyone been able to get their gauge to
> read more accurately?
> John Spaur
> '62 BT7
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