Lycoming IO-360-N1A Installation And Operation Manual page 42

8. Pre-oil start cycle: Energize the starter for 10 seconds and look for evidence of oil pressure
of at least 25 psi (172 kPa) within 10 seconds.
If there is no oil pressure within 10 seconds, stop energizing the starter. Wait at least 30
seconds and repeat the pre-oil start cycle.
Up to six consecutive pre-oil start cycles can be done. Afterwards, let the starter cool for 30
minutes. If stable oil pressure is not achieved, stop pre-oiling, identify and correct the cause.
NOTICE: Unstable oil pressure or oil pressure less than 25 psi (172 kPa) could be an
indication of obstructed or interrupted oil flow or air in the oil lines. In this case,
stop the pre-oiling, identify and correct the cause.
9. If oil pressure of at least 25 psi (172 kPa) was sustained in the previous step, repeat the pre-
oil start cycle to make sure oil pressure holds stable and that there is no sudden drop in oil
pressure. If oil pressure is not stable or drops suddenly, stop pre-oiling, identify and correct
the cause.
NOTICE: A new spark plug gasket must be installed whether a new or acceptable re-used
spark plug is to be installed.
10. Once the minimum oil pressure of 25 psi (172 kPa) is shown on the oil pressure gauge, re-
install the spark plug each with a new gasket as per instructions in Chapter 74-20 of the IO-
360-N1A Engine Service Manual.
11. Connect the fuel inlet lines.
12. Within the next 3 hours, start and operate the engine for 3 minutes at approximately 1000
rpm.
Engine Installation
Page 22
IO-360-N1A Engine Installation and Operation Manual
© 2016 Avco Corporation. All Rights Reserved
February 2016