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Fuel tank sender unit removal (1 reply)

MGMiniman
3 years ago
MGMiniman 3 years ago

Fuel tank sender unit removal

MGMiniman

MGMiniman
3 years ago
MGMiniman 3 years ago

You learn something every day!
Owning a Mini in one form or another for 49 years I thought I knew most of the tricks, but to-day I found a new one to me at least.
I finally got around to calibrating the fuel gauge on my 91 carb Cooper. Not reading full when the tank is topped out, I removed the sender unit to check the potentiometer and adjust (bend) the arm. This is the type with the 3 pronged twist fitting.
Previously I had always knocked these round with the blade of a large screwdriver, but this time I decided I should make a tool for the job. Looking round in the garage for suitable bits of metal to use I spied a bunch of thermostat housings hanging on a string. Offering this up to the fitting I found that the 3 holes were practically a perfect match to the prongs!! Re-installed the sender unit and using my new "spanner" tightened the fitting - perfect - easy without any damage to the prongs.
I would recommend a squirt of WD40 on the back of the twist fitting to allow it to slide easily on the sender base plate.
Haven't filled the tank yet to check my calibration but at least I now know its removal to adjust further if necessary is now simple.
I hope this is useful to Register users and I'm not teaching too many to "suck eggs".

PS To the Moderators - Perhaps this should be moved to the tech section.



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