Hangar 9 Christen Eagle II 90 ARF Assembly Manual page 22

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3. Attach the clunk to the straight line (carburetor tube)
using a piece of fuel tubing. Cut the fuel tubing so the
distance between the back of the small disk and the end of
the clunk measures 4 / inches (120mm) as a starting point.
3
4
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4. Fit the stopper in the fuel tank. It may be necessary to
rotate the bent tubes to insert the stopper. The tubes should
be close but not touch the top and bottom of the tank. It may
be necessary to bend them slightly or even use a short piece
of tubing on the tubes to achieve this. Check that the clunk
is close to the rear of the tank and can move freely within
the tank to allow for consistent fuel draw. Once set, use a
#1 Phillips screwdriver to tighten the screw to secure the
stopper. Do not over-tighten the stopper and distort or split
the neck of the tank.
Add fuel tubing to reach bottom
22

5. Cut three 4 / inch (114mm) pieces of fuel tubing.
1
2
Attach the fuel tubing to the tubes on the tank.

6. Prepare the plywood fuel tank former by drilling a hole
that is 7/8 inch (22mm) from the side and 1
from the bottom using a pin vise and 5/32-inch (4mm) drill
bit. Note the orientation of the former before drilling the hole.

7. Place the former in the fuselage with the hole in the
former on the right, lined up with the arm on the carburetor.
Position the former in the center of the openings on the
sides of the fuselage, but do not glue the former at this time.
/ inch (32mm)
7
16

8. Slide the fuel tank into the fuselage, guiding the tubing
through the hole in the firewall. Make sure the neck of the
tank is seated in the opening of the firewall.
Hangar 9 Christen Eagle II 90 ARF