Model Tech SE5a SCOUT Instructions For Final Assembly page 19

STEP 2: INSTALLING THE RUBBER STOPPER ASSEMBLY
IMPORTANT The top of the fuel tank is a farther distance from the center of the fuel tank opening than the bottom
of the fuel tank.
When satisfied with the alignment, tighten the machine screw until the rubber stopper expands and seals the fuel
tank opening.
IMPORTANT Don't overtighten the machine screw or you might strip the threads in the small metal plate.
With the rubber stopper assembly installed, double-check to make sure that the fuel pick-up can move freely inside the
fuel tank. Ideally, the fuel pick-up should be about 1/4" in front of the back of the fuel tank.
STEP 3: INSTALLING THE FUEL TANK
Cut two pieces of silicon fuel tubing to a length of 8" and install them to the aluminum tubes at the front of the tank.
PRO TIP
Mark the ends of the silicon tubing "vent" and "pick-up" so you don't confuse them when it comes time to
connect them to the engine later on.
Feed the ends of the fuel tubing through the predrilled hole in the firewall and slide the fuel tank into position, making
sure that the stopper assembly lines up with, and is pushed into, the predrilled hole in the firewall.
To align the fuel tank properly, the fuel tank should be pushed forward as far as possible and the bottom of the fuel tank
should rest on the edges of the cutout in the forward bulkhead.
IMPORTANT When you slide the fuel tank into position, make sure that the top of the fuel tank is toward the top of
the fuselage. The top of the fuel tank is a farther distance from the center of the fuel tank opening than the bottom of the
fuel tank.
Carefully push the metal neck-reinforcement ring over the
neck of the molded fuel tank opening.
Carefully push the rubber stopper assembly into the fuel
tank opening and rotate the stopper assembly until the aluminum
vent tube rests just below the top of the tank.
PRO TIP
If you have trouble seeing the vent tube, hold
the fuel tank assembly up to a bright light. This will illuminate
the inside of the tank.
To secure the fuel tank assembly into place, cut and install
several pieces of foam rubber between the top of the fuel tank
and the top of the cutout in the forward bulkhead.
Make sure that the foam rubber will not interfere with
the installation of your engine's throttle pushrod wire, which
will be done in the next section.
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