Ron, You probably know, but it's worth saying perhaps for others that one
914 pump works directly off the alternator. With main and alternator
switches both off, it continues to pump. The only failure of the charging
system that has appeared at all commonly on this forum is the rectifier
failing, and with that scenario, switching off the alternator switch should
leave the main pump working so that you can use your battery reserves on
whatever radio or navigational gizmo makes most sense.
regards, David Joyce, G-XSDJ
----- Original Message -----
From: "rparigoris" <rparigor@suffolk.lib.ny.us>
Sent: Wednesday, June 03, 2009 6:22 PM
Subject: Europa-List: Rotax 914 "what if"
> <rparigor@suffolk.lib.ny.us>
>
> "What if" for some reason you can't land and need to fight gravity for a
> long time with a charging system that has quit.
>
> You are runing on battery alone to run a fuel pump.
>
> To extend flight can you turn on pump to fill float bowls
> then turn off pump till engine sags, and turn on etc. etc. etc instead of
> letting pump just run?
>
> 2nd half of question is if the answer to above is yes, what might be the
> optimal MP to use?
>
> Thanking in advance.
> Ron Parigoris
>
>
> Visit - www.EuropaOwners.org
>
>
>
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