Install The Throttle Servo - GREAT PLANES Super Skybolt Instruction Manual

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12. Secure the engine to the mount with four 8-32 x 1"
[25 mm] SHCS, four #8 flat washers, and four #8 lock washers.
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13. Attach the muffler to the engine so that it rests in the
cutout on the underside of the fuselage. Some model
engines may not allow this muffler configuration. If so, the
cowl may need to be cut to accommodate the muffler.

Install the Throttle Servo

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1. Use the 2-56 x 36" [914 mm] throttle pushrod as a
guide to mark the position for a hole to be drilled in the
firewall in line with carburetor arm. Drill a 3/16" [4.8 mm] hole
at the mark.
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2. Insert the white outer pushrod tube through the hole in
the firewall and through the cutout in the former below the
fuel tank retainer tab as shown. Glue the tube to that former
as well as the firewall and cut off the excess tube that
extends out beyond the firewall.
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3. Install the throttle servo in the right side of the servo
tray using the hardware that comes with the servo.
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4. Cut three arms from a four-arm servo horn and install
a brass screw-lock pushrod connector to the outer hole in
the horn. Loosely thread a 4-40 x 1/8" [3 mm] SHCS into the
screw-lock pushrod connector.
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