Hi,
How to make sure the pump functions properly? Does it produce some audible
buzz sound when switched on? When I disconnected the fuel hose at the
carburetor and switched the pump on, no fuel flowed.
Is this pump just a back up in case the main engine driven pump fails
during take off /
hi jarek
if your electric fuel pump is fitted as per standard it should be between the
fuel tank and the fuel valve. there should definitely be fuel coming out (if
the fuel vale is open) my fuel pump (which i believe to be standard) makes a
TIC tic TIC tic TIC tic noise ticking every 0.5
i should add that the ticking noise dies off as the system is pressurised. but
if yours ain t ticking then there maybe some other gremlin at play.
others on here may know better and i'd be happy to hear about it but yes i do
believe it is a backup system.
do you have an inline filter as well?
Ric,
Thank you. Does this mean that your fuel valve is downstream side of your
electric fuel pump and therefore not according to the diagram on page 13 of
this document?
Hi Jarek
I had the same issue. The electric fuel pump clicked away, but there
wasn't enough pressure to push fuel up to the carburettors. I dismantled
the pump and found the electrical contacts badly worn, and not worth
trying to repair. Also, the pump has a life of only 1500 hours, so I
The electric pump is under and in front of the fuel tank behind the seats,
before the shut-off valve. The purpose of the electric fuel pump is to prime
the fuel lines as well as a backup on take-off.
It's good practice to turn the main switch and fuel pump on while doing the DI.
You should
It's really important to check for fuel leaks prior the first flight of the day
and any others on every flight. In addition to what Greg mentioned about causes
for lack of fuel line, pressurisation, the carby floats can and do stick
causing flooding into (and even out of) the catch trays under
