mark.stauffer1(at)gmail.c
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 Posted: Sat Sep 15, 2007 6:22 pm Post subject: Fuel tanks (sending unit concerns) |
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I've had to replace two units. Actually it's more of a pain to take the wing
out than it is to remove the sending unit. Drain the tank, un-hook
everything, pull out the spar and angle of incidence bolts and then pull out
the wing. About an hour or so job. Then take a heat gun and start heating up
the sending unit and the epoxy around it. It's takes a bit of work but you
should have it out in about 10-15 minutes. Clean up the remaining epoxy and
glass the new one in.
A note about the sending units. Princeton claims a very low failure rate and
we've had very good luck with them. I would suggest to you though that you
test the units before you install them. If my memory serves me correctly non
of our units failed during use, they failed the first time during
calibration. In other words they didn't work when we installed them. Believe
me, we've learned our lesson. All units are tested (calibrated) in a five
gallon gas can before we install them. Once you have a successful
calibration then just reset the unit to zero. All of the calibration steps
are explained in the instructions sent with the units.
Hope this helps.
Mark
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