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A Dukes pump should be positioned low enough in the
fuel system so that it never "looses it's prime".
If you look back through the LML, you'll find quite
a few entries on this subject. Others have had to repeatedly change pumps
that had a short life and my pump has a label warning against running dry
(even briefly).
My pump is right under the header tank and some
others put them low on the forward firewall with a heat
shield.
One person wrote that an overhaul cost as much as a
new pump.
You might look at Airflow Performance as I believe
they have an equivalent pump and may have better availability.
Mark Ravinski
N360KB 1300 hrs
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