18
the fuel pump to the carburetor and one in the return line from the carburetor back to the fuel tank.
Also, a Fuel Flow Differential Module (FFDM-1) will need to be installed. See drawings 1229932 and
1015941 on the following pages.
Note:
Note:
Note:
Note:
Note: Insure the fuel flow transducer is appropriate for the horsepower of the engine
Insure the fuel flow transducer is appropriate for the horsepower of the engine
Insure the fuel flow transducer is appropriate for the horsepower of the engine
Insure the fuel flow transducer is appropriate for the horsepower of the engine
Insure the fuel flow transducer is appropriate for the horsepower of the engine.
A.
A.
A.
A.
A. The transducer output port should be mounted lower, even with or no more than 4" per foot
higher than the carburetor inlet port (or fuel servo on a fuel-injected engine). If this is not pos-
sible, a loop should be put in the fuel line between the Fuel Flow Transducer and the carburetor or
fuel servo (see diagram below). This loop is intended to vacate air and keep it from getting
trapped in the fuel transducer.
B.
B.
B.
B.
B. Do not remove the yellow caps on the flow transducer until the fuel hoses are ready to be in-
stalled.
C.
C.
C.
C.
C. The flow of fuel through the transducer must follow the direction marked on the transducer.
D.
D.
D.
D.
D. The flow transducer must be mounted so the wires exiting the transducer are pointing up, or the
cap with five bolts is pointing up, or the output port is pointing up, or any combination thereof.
E.
E.
E.
E.
E. Before connecting any hoses, thoroughly clean them and insure they are free of any loose mate-
rial. High air pressure may be used, however,
however,
however,
however,
however, do not allow high air pressure to pass
do not allow high air pressure to pass
do not allow high air pressure to pass
do not allow high air pressure to pass
do not allow high air pressure to pass
Fittings:
Fittings:
Fittings:
Fittings:
Fittings:
#4 Straight - AN816-4-4D
#6 Straight - AN816-6D
#8 Straight - AN816-7D
#6 45' - MS20823-6D
#4 90' - MS20822-4-4D
#6 90' - MS20822-6D
1 / 4 "
1 / 4 "
1 / 4 "
1 / 4 "
1 / 4 "
N P T
N P T
N P T
N P T
N P T
Flare
Flare
Flare
Flare
Flare
Hose Fittings:
Hose Fittings:
Hose Fittings:
Hose Fittings:
Hose Fittings:
Straight - MS24587-XX, Stratoflex 300-, Aeroquip 400-
45' - MS27226-XX, Stratoflex 646- and 640, Aeroquip
980006
90' - MS27224-XX, Stratoflex 649- and 643, Aeroquip
980005
NOTE:
NOTE:
NOTE:
NOTE:
NOTE: The Stratoflex teflon hose can be much more flexible
and easier to route than most existing hoses. If you have a
hard-to-fit installation, you might want to consider this hose.
Flare
Flare
Flare
Flare
Flare
H o s e
H o s e
H o s e
H o s e
H o s e
through the flow transducer.
through the flow transducer.
through the flow transducer.
through the flow transducer.
through the flow transducer.
F.
F.
F.
F.
F. When mounting a Fuel Flow Transducer, make provisions for the Fuel Pressure Transducer as
necessary.
