Top Flite TOPA0704 - Manual (Page 35)

35
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34. Temporarily mount the muffl er to the engine. We
have recommended the J’tec Radiowave wrap-around
Pitts muffl er (JTCG1035) for installation in the Corsair.
This muffl er fi ts without making any modifi cations to the
fuselage. If you are using a different brand of muffl er
you may need to modify the front of the fuselage for it
to fi t. Make any modifi cations as needed.
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35. Cut away the cowling as needed to allow the
cowl to slide onto the fuselage and clear the muffl er
and spark plug. This would be a good time to make any
fi nal adjustments to the rough opening you made in the
bottom of the cowl. Re-install the cowl to be sure you
are satisfi ed with all of the clearances you have made.
Once you are, remove the cowl.
INSTALL THE FUEL TANK AND IGNITION
MODULE
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1. Assemble the fuel tank stopper assembly with the
fuel tubes as shown. The easiest way is to fi rst solder
a fuel line barb onto
one end of all three tubes. Insert
the tubes into the stopper with the metal plates, and
then solder a barb onto the other end of the two short
tubes. Bend the vent tube and connect the pickup and
fueling/defueling lines (not included) to the short tubes.
Connect the clunks to the Tygon Fuel lines (not included)
and secure the lines to the clunk and brass tubing with
the included small tie straps.
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2. Install the fuel tank stopper assembly in the fuel
tank. Check that the clunks move around freely in the
fuel tank. Tighten the fuel tank stopper screw. Be sure
to mark which line is the vent, fi ll and carburetor.
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3. With your muffl er mounted to the engine, use your
muffl er as a reference and drill two holes on either side
of the muffl er into the bottom of the fi rewall box. Be sure
you position the holes so the lines will not contact the
muffl er. The holes will be for the vent and fi ll lines. Look
at the fuel inlet on the carburetor. Determine a location
to drill the hole for the fuel line to the carburetor. Once
you determine the location where the holes can be
drilled it will be easiest to drill the holes if you remove
the engine from the stand-offs. Measure the diameter
of your fuel tubing to determine the size holes you need
to drill. Drill a hole in the fi rewall for the fuel line. Drill
holes in the bottom of the fi rewall box and the bottom
of the fuselage for the vent and fi ll lines.