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I have a question.
Today while flying my first take off was
normal. The second take off my fuel flow
on takeoff went up to 19.0gph then back down
to 12.2 after rotation then
slowly went back to normal. Cruised around ok
for 15 min then back to the airport
for a couple of circuits. No electric boost
pump except I turned it on for landing.
Next take off the same thing but max Flow on
take off was 18.5gph for half a second then
it went back down to 14.5. Turn on the
electric boost and within 2 seconds its back up to 20.5gph.
Landed and on a back track for another circuit the
engine stalled. Restarted right away with
no issues. Next circuit same issue. Up
to 18.0gph then down to 15.0 while rolling down
the runway, hit the boost pump and within 2 seconds
all is well. On downwind switch the
boost pump off and the fuel flow stays in normal
ranges. Take off left or right tank, same issue.
Fuel 25 gal in each tank.
Fuel pressure stays normal the whole
time. I checked for water in the tanks and gascolator.
I checked underneath the cowl for anything out of
place.
Engine fuel pump rebuild required?? What do
you think??
Any advise would be appreciated.
Thanks
Scott K
IO-550-G
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