GREAT PLANES Christen Eagle .46 Instruction Manual page 18

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6. Insert the tank into the fuselage so the tank neck
passes through the hole in the fi rewall. Cut a piece from
the included 3/16" x 3/8" [4.8mm x 9.5mm] balsa stick to fi t
snugly between the plywood framework behind the fuel tank.
Securely glue the stick in place.
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7. Connect a 6-7" [152-178mm] piece of standard fuel
tubing to each tube protruding from the fuel tank.
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8. Install the engine mount to the fi rewall using four 6-32 x
3/4" [19mm] SHCS, four #6 fl at washers, four #6 lock washers
and thread locking compound. Leave the screws slightly
loose. Test fi t your engine between the mount halves. Slide
the mount halves against the sides of the engine and fi nish
tightening the mount screws.
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9. Position the front of the engine drive washer 4-13/16"
[122mm] from the front of the fi rewall. Mark the location of
the engine mount holes onto the mount rails using a Dead
Center Hole Locator. Remove the engine from the mount
and use a 6-32 tap and drill set to create threads in the four
mounting holes. Note: If you are installing a 4-stroke engine,
you may need to trim away the nose gear bearing from the
engine mount to provide clearance for the carburetor. An in-
cowl exhaust header (OSMG2567) will be useful in routing a
4-stroke muffl er in the prefered position.
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