Stinson SR 9, Instruction Manual

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Engine Installation
Use a drill to drill screw holes for engine Installation.
The holes position for 3W & DL have been laser scribed on the
firewall.
Insert the bolts through flat fender washers, the firewall and into
the engine stand offs. Tighten firmly. Secure mounting bolt nuts
with Blue Loctite.
Use a bit to drill a pushrod exit hole on the firewall in line with the
engine carburetor throttle arm.
Attach the ball link to the throttle pushrod and secure to the
carburetor throttle arm with a bolt and nylon lock nut.
Insert the throttle servo into the servo mounting tray with an
output arm forward. Insert the throttle pushrod into the servo
arm easy link.
Mark a line for the throttle servo tray, then glue it to the fuselage.
Use a drill to drill the servo mounting holes. Install the servo with
servo screws.
Insert the throttle pushrod into the servo easy link. Move the
servo arm to the center position. So that carburetor is half open.
Tighten the easy link set screw.