aj-aircraft.com
Page 16
Assembly the exhaust canister with header using the
coupling and clamps. Be sure to leave a gap between
the header and canister inside the coupling to reduce
vibrations. Test fit in the fuselage
Drill through the coupling and manifold and install
flanged screws to secure the connections. Install the
coupling clamps over the screw flange.
There are many opinions on how to make a maintain
exhaust connections at the engine. We find that using
an exhaust gasket Permatex Ultra Copper High
Temperature RTV Silicone Gasket Maker works well.
Apply a thin coat of silicone to both sides of the gasket.
Let the silicone set up before tightening down the
exhaust. This prevents the silicone from being
squeezed out. A dab of silicone can also be applied to
the exhaust bold to prevent them from backing out.
Fuel Tank
We suggest using a quality 24 oz (700cc) fuel tank and
fuel line suited for gasoline such as Fourtitude, Dubro,
or Sullivan. The fuel tank vent line should loop up over
the tank then exit through the bottom of the airplane.
The fill line should be capped by a fuel dot. The
carburetor supply line should run through the firewall
to the carburetor.
When assembling the fuel tank make sure the clunk
moves around freely. Rotate the tank side to side and
upside down to ensure the clunk does not get stuck.
Position the fuel tank in front of the wing tube. Placing
a piece of foam under the tank will prevent fuel foaming
from vibration. Secure the tank using the hook and
loop straps running through the slots on the plywood
tray. We recommend using at least a 1” strap if you
intend to do high G, 3D maneuvers.
