Hangar 9 RV-8 Assembly Manual page 24

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Step 8
Cut a 1/2-inch (12mm) wide piece of 1/4-inch (6mm) foam
and wrap it around the fuel tank as shown.
Hint: Using strapping tape around the foam will help
when sliding the tank into the fuselage. Use very light
pressure when applying the tape to avoid compressing
the foam against the tank.

Step 9
Insert the fuel tank in the fuselage. Again, make sure the vent
line faces to the top of the fuselage when installing the tank.
Place a piece of foam at the rear of the tank so it will not
slide rearward in the fuselage.
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
Step 10
Use medium CA to glue the plywood tank support in
position. Make sure the top of the support is flush with the
top of the formers or the canopy hatch will not fit back on
the fuselage correctly.

Step 11
Follow the instructions provided with your engine to install
the muffler.

Step 12
Connect the fuel lines to the engine. Note that the vent
line will connect to the muffler, and the line from the clunk
connects to the fuel inlet.
note: We used a fuel dot so the fuel tank can be filled
without the need to remove the cowl.
Hangar 9 RV-8 Assembly Manual