User Manual
37
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 7. We painted the space between the cylinders and the 
plywood engine frame  at black. Paint is not included.
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 8. Drill 1/8" [3mm] holes in the bottom of the rocker arms 
and in the crankcase as shown. Glue the eighteen aluminum 
tubes in the holes. If the dummy engine will be used with the 
RimFire 65 motor, the tubes must be  ush with the inside 
surface of the crankcase to avoid rubbing on the motor.
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 9. Drill 1/16" [1.5mm] holes in the front of the cylinder head 
and the crankcase. Glue the red spark plug wire in the holes.
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 10. Use 6-minute epoxy to glue the dummy engine to 
the plywood wood frame. Align the dummy engine with the 
embossed circle on the plywood frame.
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 11. Test  t the dummy engine assembly in the cowl. Use a 
sanding bar with coarse sandpaper to bevel the edges of the 
engine frame. The goal is to have the center of the dummy 
engine centered in the cowl opening. The back of the engine 
frame should be approximately 7-3/8" [187mm] below the 
edge of the cowl. Mark the location of the engine frame on 
the inside of the cowl. This will help in repositioning the engine 
once epoxy has been applied to the engine assembly. Use 
masking tape to hold the dummy engine in position and test 
 t the cowl on the fuselage. Install the propeller and check 
for clearance. Refer to Step 15.










