[Healeys] Effects of Ethanol

[Michael MacLean]

This past weekend I removed the tank to extract the sending unit on my Bugeye because of a constant reading of empty on the gauge.  As suspected, the plastic float was filled with gasoline.  Ethanol!  While replacing the plastic float for brass and the cork gaskets for Viton type gaskets, I also swapped out the sending unit top cover cork gasket with a Viton type using Hylomar AF to seal things up.  The big surprise came when I found the rheostat cavity full of gasoline.  Must have entered through the hole in the sending unit body for the float lever.  Anyone have experience with this?  Should I be concerned?  I remember the original sending unit I removed form the Bugeye tank was full of a white powdery residue around the rheostat like it had also been filled with gasoline.  Anyone have experience with this?Mike MacLean


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