I use low boost during takeoff to protect
against a mechanical pump failure during this critical phase of flight.
Paul Bricker
N63PB
From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Scott Keighan
Sent: Monday, August 24, 2009 7:25
PM
To: lml@lancaironline.net
Subject: [LML] Fuel Flow Issue
Solved
I just thought I would update everyone on my Fuel Flow
issue.
About a month back I asked for advise about a sudden
lack of fuel flow.
Where I used to get 20-21gph on Take off I has suddenly
getting 12-14gph.
All run ups were normal but when applying full power for
takeoff I would not
get enough flow. When initiating the Electric fuel
pump everything turned to
Well this problem turned into quit the hunt to find the
issue.
To make a long story short I had disassembled and reassembled
the majority of
the fuel system from the:
What did it come down to??
A broken O-ring on the inlet side of the Electric Fuel pump
fitting.
Air was being sucked into the system. I finally
discovered it by putting a vaccum
on the fuel lines from the engine to the tanks. When a
vaccum could not be held
I traced it to the O-ring.
Four weeks of down time and about 80hrs of
work to find the .50 cent problem.
Of course I had to reset all my flows of which I now get
24gph and 22psi on Takeoff.
Now I am still not using my Electric Boost for Take
Off. Should I or should I not???
What is the concensis of people in the know.
Thanks to everyone whom gave me some input.