Dear Ben
I have recently noticed the same effect you mention.
I shall be investigating further, but if anyone else has any suggestions as to
alternative causes, I=27d be happy to hear about them.
Kind regards
Andy Draper
Technical Manager
andy=40europa-aircraft.com
>>> =22Ben=22 <sales=40fernhurst-tvr.co.uk> 10/21/99 01:50pm >>>
Sometimes my electric fuel pump although =22chattering happily=22appears to be
incapable of self priming. If the engine is cranked (and the mechanical pump
is used) for a few seconds the electric pump then primes and thereon maintains
pressure unaided. One wonders therefore how good it would be in an emergency.
Fine perhaps for take off and landing when it=27s activated while the mechanical
pump is working. But what about in flight when the mechanical one dies
while the electric one is off??? I became alerted to the problem because I
have a low pressure warning light. G-IBBS had a very similar problem but he has
no light and only became aware because he was trying to use the electric pump
to drain his tank. Again cranking the engine appeared to prime the electric
pump and brought it back on line. Anybody any thoughts, suggestions or similar
problems? Neither of us have air leaks or blocked filters and both have the
=22full flow=22 fuel system.
Ben G-BXGG
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