Section 7: 4-Stroke Installation - Hangar 9 Piper Pawnee 40 ARF Assembly Manual

Section 7: 4-Stroke Installation

Required Parts
• Engine mount
• Engine mount plate (2)
• 11
3
/ -inch (300mm) throttle pushrod tube
4
• 8-32 x 3/4-inch machine screw (4)
• 8-32 x 1-inch machine screw (4)
• 17
3
/ -inch (450mm) throttle pushrod
4
Required Tools and Adhesives
• Threadlock
• Foam rubber
• Pencil
• Drill
• Drill bit: 11/64-inch (4.5mm)

Step 1
Attach the mount to the firewall using four 8-32 x 3/4-inch
machine screws and four #8 washers.
Note: Make sure to use threadlock on the
screws to prevent them from vibrating loose.
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• 8-32 lock nut (4)
• Fuel tank
• Ruler
• Fuel dot
• Side cutter
• Sandpaper

Step 2
Temporarily install the rear 8-32 x 1-inch machine screws
and 8-32 lock nuts to attach the mounting plates to the
mount. Finger-tighten the screws at this time.
Note: The motor mount plates have a textured
side that faces the mount when installed.

Step 3
It may be necessary to rotate the carburetor on your
engine in order to attach the throttle linkage. If the
carburetor arm and linkage will interfere with the engine
mount, rotate the carburetor as shown.