Step 9. Connect Oil Lines; Step 10. Install Components That Had Been Removed Before Engine Installation And Any Additional Ship Loose Components; Step 11. Add Oil - Lycoming IO-390-D Series Installation And Operation Manual

Step 9. Connect Oil Lines

CAUTION MAKE SURE THERE ARE NO SHARP BENDS OR KINKS IN THE OIL
LINE ROUTING TO PREVENT INTERRUPTIONS TO OIL FLOW. DO NOT
ROUTE OIL LINES CLOSE TO HEAT SOURCES.
1. Connect the airframe supplied oil lines to the engine per airfare manufacturer's instructions.
Refer to the installation drawing for correct engine oil line connections.
2. Make sure the oil line routing is smooth, without sharp bends, kinks or helical twists.
3. When making oil line connections:
Align the oil line with the fitting for best orientation (without kinks or sharp bends).
A.
Torque the fitting to the torque value in the latest revision of the Service Table of Limits -
B.
SSP-1776.
Step 10. Install Components That Had Been Removed Before Engine Installation and Any
Additional Ship Loose Components
1. Install any component that was removed to enable engine installation.
2. Install any remaining components that were shipped loose with the engine.

Step 11. Add Oil

Oil Additives
CAUTION
NOTICE: On new, rebuilt, or overhauled engines, during the first 50 hours of engine
operation, it is recommended that this engine be operated with mineral oil until oil
consumption has stabilized. Afterwards, complete an oil change, drain the mineral
oil and add new oil identified in Appendix A.
1. Pull out the oil level gage
assembly (dipstick) (Figure 3)
from the oil level gage tube.
2. Add either new clean mineral oil
(if within the first 50 hours of
operation of a new, rebuilt or
overhauled engine or an engine
that had a cylinder and/or piston
rings replaced) or specified oil of
the correct quantity and
viscosity for the ambient
temperature (identified in
Appendix A) to the oil sump
through the oil level gage tube.
Engine Installation
Page 20
IO-390-D Series Engine Installation and Operation Manual
DO NOT ADD TOP CYLINDER LUBRICANT, DOPES, OR CARBON
REMOVERS TO THE ENGINE. THESE PRODUCTS CAN DAMAGE
THE ENGINE (PISTONS, ENGINE RINGS, ETC.). IF THESE
PRODUCTS ARE ADDED TO THE ENGINE, THE ENGINE
WARRANTY IS VOID.
OIL IN SUFFICIENT QUANTITY AND OF THE CORRECT VISCOSITY
FOR THE CORRESPONDING AMBIENT TEMPERATURE (APPENDIX
A) MUST BE ADDED TO THE ENGINE FOR CORRECT LUBRICATION
ESSENTIAL TO ENGINE OPERATION.
Oil Level Gage Tube and Oil Level Gage (Dipstick)
Figure 3
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March 2020