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Vent tube.
Fuel pick up tube.
Fuel fill tube.
3) Carefully bend the second nylon tube up
at a 45º angle. This tube is the vent tube.
4) Test fit the stopper assembly into the tank.
It may be necessary to remove some of the
flashing around the tank opening using a
modeling knife. If flashing is present, make
sure none falls into the tank.
5) With the stopper assembly in place, the
weighted pick-up should rest away from the
rear of the tank and move freely inside the
tank. The top of the vent tube should rest just
below the top of the tank. It should not touch
the top of the tank.
6) When satisfied with the alignment of
the stopper assembly tighten the 3 x 20mm
machine screw until the rubber stopper ex-
pands and seals the tank opening. Do not
overtighten the assembly as this could cause
the tank to split.
FUEL TANK INSTALLATION.
You should mark which tube is the vent
and which is the fuel pickup when you attach
fuel tubing to the tubes in the stopper. Once
the tank is installed inside the fuselage, it
may be difficult to determine which is which.
7) Slide the fuel tank into the fuselage. Guide
the lines from the tank through the hole in
the firewall.
8) Use balsa plywood to help prevent move-
able from transferring to the fuel tank as
shown.
Fuel tank
Fuel tank
Balsa
C/A glue
Fuel pick up.
Vent tube.
Fuel fill tube.
