Cold Weather Start - Lycoming IO-360-N1A Installation And Operation Manual

IO-360-N1A Engine Installation and Operation Manual
2. Apply hot air to all parts of a cold-soaked engine.
3. Make sure the engine oil is in compliance with the recommended grades in Appendix A.
4. Apply hot air directly to the following parts in 5-minute intervals for a minimum of 30
minutes:
 Oil sump
 Oil filter
 External oil lines
5. If cowl flaps are installed, open the cowl flaps to prevent heat build-up.
6. Between intervals, make sure the engine stays warm and keeps the heat. Make sure there is
no damage from heat build-up.
7. During the last 5 minutes of the heat process, apply heat to the top of the engine.
8. Start the engine immediately after the hot air application. Refer to the section "Start the
Engine" in the "Engine Start and Operation" chapter of this manual. Also, refer to additional
engine start information in the section "Cold Weather Start" in this chapter.

Cold Weather Start

NOTICE: The following is Lycoming Engine's recommended procedure for cold weather engine
starts. Refer to the aircraft manufacturer's Pilot's Operating Handbook (POH) for in-
flight recommendations during cold weather.
1. After a cold start, do not rapidly increase acceleration or exceed the idle rpm. Allow up to 1
minute for oil pressure to become stable above 1000 rpm, since oil lines to the gage can stay
cold. If oil pressure indication is not shown within 10 seconds, stop the engine. Identify and
correct the cause. If no leaks or damage are found, complete the pre-heat application again
before engine start.
2. Let the engine warm up at 1000 rpm until oil pressure and temperature are stable within
operating limits, identified in Appendix A.
3. Complete a ground check in accordance with the aircraft manufacturer's POH.
4. Complete a cycle of the propeller control position in accordance with the aircraft and
propeller manufacturer's instructions to make sure warm oil is in the propeller dome.
© 2016 Avco Corporation. All Rights Reserved
February 2016
IF HEAT HAS NOT BEEN APPLIED TO ALL PARTS OF THE ENGINE,
THE ENGINE CAN START AND OPERATE BUT LATER FAIL
BECAUSE THE THICK OIL WILL NOT FLOW FULLY THROUGH THE
ENGINE. DAMAGE CAN OCCUR AND NOT BE KNOWN UNTIL
AFTER SEVERAL HOURS OF OPERATION. THE ENGINE ALSO CAN
FAIL AFTER APPLICATION OF HIGH POWER.
 Oil cooler
 Cylinder assemblies
 Air intake.
APPLY THE HOT AIR UNIFORMLY AND NOT CONCENTRATED IN
ONE SPOT TO PREVENT HEAT DAMAGE TO NON-METAL PARTS.
HEAT BUILD-UP CAN CAUSE DAMAGE TO WIRING, HOSES, ETC.
Engine Conditions
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