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Previously we published a warning from Ralph Ainsley about dangerously rusted steel gas tanks. Now, Dean Baldwin has sent a warning about gas gauge senders. This was previously included in another thread, but we are re-posting it here to make it more visible. A photo is <a href="http://www.cc27association.com/fixes/gastank/gastank.html">here</a>.
Dean is wrong on the gasket as an indicator - a cork or paper gasket is not a sure sign of a mild steel sender, nor does a rubber gasket guarantee a rust-free unit. However it only takes a minute to pull your sender and check.
– Admin
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ATTENTION: all steel fuel tank sender users. Replace them now! These are nasty devices. If a fuel gauge is suspect, place an ohmmeter on the wires and watch for deflection, if you have deflection then you know the gauge is working and that the sender is the culprit. Caution - remove the sender very carefully, because all/some of the rust that could have materialized will sure as ???? end up in your tank, like mine (along with part of the paper gasket). I can only speculate, but if you have a cork / cardboard gasket then you have a steel sender and should switch to an aluminum and rubber unit.
Dean M Baldwin
Morgan "D"
Mark III - Hull 516
Halifax, N.S.
Last edited by (2007-07-17 23:44:47)
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A very interesting topic.... my hull was built in Rhode Island, and it has a monel tank, not steel. The gasket between the sending unit and the tank is rubber. I was very careful years ago in removing the old sending unit and replaced it with a unit that is made of aluminum, and stainless. I looked at it this year prior to launch... it was fine.
I concur that with steel tanks there may be a problem... the more the owner does on his (her) boat the better.
"IRIS"
1975 C&C 27 MKlll
Hull #453
Kittery Point, Maine
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