Lycoming IO-390-D Series Installation And Operation Manual page 73

IO-390-D Series Engine Installation and Operation Manual
Oil Pressure - Pre-Oil Procedure
Oil Pressure - Minimum Idling
Oil Pressure - Operating (rear of engine)
Oil Pressure - Starting, Warm-up, Taxi, and Take-off
(Maximum)
Oil Temperature (for maximum engine life)
Maximum Oil Temperature
Maximum Oil Consumption
Boost Pump Outlet Pressure Limits to
Fuel Injector Inlet
Fuel Pressure at Inlet to the Fuel Pump
Maximum Cylinder Head Temperature (measured at
thermocouple)
Cylinder Head Temperature (for maximum engine life) -
Above 75% power
Cylinder Head Temperature (for maximum engine life) -
At 75% power and below
Alternator Stator Slot Temperature
Alternator Stator End Turns Temperature
Alternator Drive End Bearing Temperature
Alternator Positive Heat Sink Temperature
Maximum EIS/Magneto Temperature (measured in the
pole laminations)
© 2020 Avco Corporation. All Rights Reserved
March 2020
Table of Operating Limits for IO-390-D Series Engine
Parallel Boost
Series Boost
Table A-2
55 to 95 psi
14 to 45 psi
14 to 35 psi
-2 to +35 psi
20 psi 138 kPa
25 psi 172 kPa
379 to 655 kPa
115 psi 792 kPa
180ºF 82ºC
235°F 113°C
0.006 lb/BHP/Hr.
97 to 310 kPa
97 to 241kPa
-14 to 241 kPa
465°F 241°C
450°F 232°C
435°F 224°C
360ºF 182ºC
360ºF 182ºC
248ºF 120ºC
305ºF 151ºC
225ºF 107ºC
Appendix A
Page 53