Great Planes Escapade .61 GP/EP ARF - GPMA1201 - Manual (Page 15)

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5. Drill #29 (or 9/64" [3.6mm]) holes through the engine
mount at the marks you made for the mounting screws. Mount
the engine with four 8-32 x 3/4" [19mm] Phillips screws and
#8 lock washers. Use an 8-32 tap to tap threads into the
holes after drilling them. Then, use 8-32 x 3/4" socket-head
cap screws (SHCS) and #8 lock washers for mounting the
engine. Note: Four-stroke engines may have to be temporarily
dismounted later while hooking up the throttle.
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6. Some engines, like the OS 95AX, may need to have
clearance for the needle valve. Cut clearance in the fuselage
as needed for your engine.
INSTALL THE COWL (optional)
The Escapade comes with a fi berglass cowl that can be
installed as an option. The following instructions explain the
installation and show it complete with the two-stroke engine.
The method may need slight modifi cation depending on your
radio. Please review these instructions before determining if
you will install the cowl.
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1. Draw a line down the fuselage in line with the fi rewall.
Using a sharp hobby knife, cut the fuselage on this line,
removing the front portion of the fuselage.
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2. 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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3. 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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4. Position the engine on the mount so that the distance
from the fi rewall to the engine drive washer is 5-1/2" [140mm]
Note: Most 4-stroke engines will not be able to be positioned
far enough aft on the mount to achieve this spacing without
removing some of the engine mount. Using a high speed
moto tool with a sanding drum remove material from the
engine mount where the back of the engine contacts the
mount. Remove the material as needed to achieve the proper
dimension.
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5. 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.
❏
6. Drill #29 (or 9/64" [3.6mm]) holes through the engine
mount at the marks you made for the mounting screws. Mount
the engine with four 8-32 x 3/4" [19mm] Phillips screws and
#8 lock washers. Use an 8-32 tap to tap threads into the
holes after drilling them. Then, use 8-32 x 3/4" socket-head
cap screws (SHCS) and #8 lock washers for mounting the
engine. Note: Four-stroke engines may have to be temporarily
dismounted later while hooking up the throttle.