RotaxEngines-List Digest Archive
Mon 07/13/15 |
Total Messages Posted: 1 |
Today's Message Index:
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1. 03:47 PM - 912 ULS Fuel Pressure (Stan Tew)
Message 1
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Time: 03:47:52 PM PST US
Subject: 912 ULS Fuel Pressure
From: Stan Tew <stan2tew@gmail.com>
My 912 ULS mounted in my Rans S7-S has 438 hr. I replaced the old style
mechanical pump as recommended by Rotax. I have an electric fuel pump and
fuel pressure gauge. I usually take off with the electric pump running in
addition to the mechanical pump. When I level off to cruise I turn off the
electric pump. My pressure usually is about 4.5 psi. Last week I was flying
and noticed the EIS warning light and it identified my fuel pressure to be
about 0.9 psi. I quickly turned on the electric pump. The pressure went to
about 3.5 psi. I flew back and landed without incident. The engine never
faltered.
Any suggestion on how to test the mechanical pump? Any suggestion on what
the problem might be? I have not had opportunity to remove the cowl to make
any visual checks.
Stan Tew
N29TD
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