Hangar 9 85cc Sukhoi SU-26MM Assembly Manual page 21


Step 4
Drill the four locations using a drill and 5/16-inch (8mm)
drill bit. The blind nuts are then installed into the backside
of the firewall.

Step 5
Mount the engine to the firewall using four 1/4-20 x 3/4-
inch socket head bolts and four 1/4-inch lock washers.
Make sure to use threadlock on the bolts as well as the
lock washers to help keep them from vibrating loose.

Step 6
Position the throttle servo into the opening next to the
fuel tank. The output of the servo faces toward the front of
the fuselage. Use a felt-tipped pen to mark the mounting
locations for the servo.

Step 7
Use a pin drill and 1/16-inch (1.5mm) drill bit to drill the
locations for the servo mounting screws.
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