Lycoming IO-390-D Series Maintenance Manual page 266

C. Install a new propeller governor oil line around the crankcase and sump and connect the oil
line to the fittings in the front of the engine and the propeller governor drive housing. Do not
torque yet.
D. Install the hose and clip on the propeller governor oil line assembly (Figure 18).
E. Attach the clip to the crankcase with the bolt, washers and a new lock washer. Torque the
bolt to 17 ft.-lb. (23 Nm).
F. Install a new clamp (Figure 18) on the propeller governor oil line assembly to the oil sump
with the bolt, washer, new lock washer and nut. Torque the bolt to 96 in.-lb. (11 Nm).
G. Torque the propeller governor oil line to the elbow fittings per the torque values in the latest
revision of the Service Table of Limits - SSP-1776.
72-50
Page 240
IO-390-D Series Engine Maintenance Manual
IO-390-D Series Engine Maintenance Manual
© 2020 Avco Corporation. All Rights Reserved
March 2020