37Hangar 9 Sundowner 36 ARFMotor InstallationRequired PartsFuselage assembly3mm lock nut (4) 3mm washer (8)Electronic speed controlMotor with hardware and X-mountAluminum stand-off, 3/4-inch (22mm) (4) (Power 25)Aluminum stand-off, 11/16-inch (27mm) (4) (Power 32)Plywood engine mount template3mm x 30mm socket head screw (4) (Power 25)3mm x 35mm socket head screw (4) (Power 32)Hook and loop tape (not included)Required Tools and AdhesivesDrill Needle nose pliersHemostats ThreadlockBall driver: 2.5mm Nut driver: 5.5mmHobby knife with #11 bladeDrill bit: 1/8-inch (3mm)Phillips screwdriver: #2 1. Locate the plywood engine mount template. Thetemplate will fit into the recess of the firewall. If not, lightlysand the edges of the template so it fits into position. 2. Use a drill and 1/8-inch (3mm) drill bit to drill the fourholes for mounting the engine. Use the inner set of holes forthe Power 25, the outer set of holes for the Power 32.Note: The following steps will show the recommendedPower 32 motor installation. The Power 25follows the same procedure, but will mount inthe holes drilled in step 2 for the Power 25.Note: Always use threadlock on metal-to-metalfasteners to prevent them from vibrating loose. 3. Use the hardware provided with the motor to attach theX-mount. Use a #2 Phillips screwdriver to tighten the screws. 4. Use a hobby knife and a #11 blade to remove the plywoodto access the fuselage for the speed control installation.