Great Planes Escapade .61 GP/EP ARF - GPMA1201 - Manual (Page 14)

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8. If you will be installing the cowl (optional) over the motor,
skip ahead to INSTALL THE COWL (optional) , step 1 and
step 7.
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9. Use a hobby knife with a sharp #11 blade to cut the
covering from the rounded air exit slots in the bottom of the
fuselage behind the wing.
Proceed to Mount the Fuel Tank (or Motor Battery).
Mount the Glow Engine
Before following these mounting instructions you
should determine your engine or motor of choice and
familiarize yourself with the instructions. If you will be
installing the optional cowl, skip ahead to INSTALL
THE COWL (optional) on page 15. Read through the
instructions, decide which method you will use and
then proceed to mount the engine. The instructions for
mounting the engine are slightly different with the cowl.
Mount the Engine (without the cowl)
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1. Temporarily mount the two-piece engine mount to the
fuselage with four 8-32 x 1-1/4" [32mm] Phillips screws, four
#8 lock washers and #8 fl at washers, but don’t tighten the
screws all the way yet.
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2. Place your engine on the mount, sliding the mount halves
together or apart to fi t the engine. Now you may tighten the
mount bolts the rest of the way.
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3. Use a propeller reamer or correctly sized drill to enlarge
the hole in your propeller and in the spinner backplate. Place
the backplate of the spinner on the engine and position the
engine on the mount so there will be a 1/8" [3mm] space
between the backplate of the spinner and the front of the
fuselage.
Note: Most 4-stroke engines will not be able to be
positioned far enough aft on the mount to achieve this spacing,
so just move the engine as far back as possible.
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4. Use a Great Planes Dead Center ™ Hole Locator
(GPMR8130) or a sharpened wire to mark the location of
the engine mounting holes onto the mount.