13
OUTFITTING THE FUSELAGE
FUEL TANK ASSEMBLY
1.
Gather the following items
(1) fuel tank
(1) rubber tank stopper
(1) clunk
(1) 3mm x 25mm screw
(1) cap washer large
(1) cap washer small
(1) 3mm x 40mm brass tube
(1) 3mm x 60mm brass tube
(1) silicone tube 4mm x 80mm
2.
Insert the 3mm screw through the center
hole in the large washer, through the
center hole in the rubber washer against
the large side, and screw the small wash-
er on the back side.
3.
Insert the brass tubes through two or
three of the holes. They should be
arranged so as the long one (vent tube)
will be on the right side of the plane and
the short one on the left side.
The tubes should extend out the front of
the cap 5/8”. Bend the long tube up at
about a 20 degree angle. This should be
adjusted so the end of the tube almost
touches the top of the tank when
installed.
4,
Install the 4mm silicone tube to the short
brass tube and install the clunk to the
other end of the silicone tube. This is the
fuel pickup and must be free to “flop”
around in the tank so it can pick up fuel in
any attitude.
Decide if you want to use a two line or a
three line tank. Most two strokes use a
two line, one to the carb and a vent tube
to the pressure fitting on the muffler. You
can get to the carb line to remove and fill
through.
On most four strokes you cannot get to
the carb easily so plumb a third line into
the tank to use as a fill line. You will fill
through it then plug it for flight. The carb
line will stay connected all the time.
