Lycoming IO-360-N1A Installation And Operation Manual page 58

K. Calculate fuel and oil consumption and compare the limits given in Appendix A.
NOTICE: Use the following formula to calculate the maximum allowable oil consumption
limits for all Lycoming aircraft engines:
L. If the oil consumption value is above the limits in Appendix A, identify and correct the cause.
Complete this flight test again, up to and including this step before releasing the aircraft for
service.
M. Drain the oil per the "Oil Change Procedure" in Chapter 12-10 of the IO-360-N1A Engine
Service Manual.
N. Remove the oil suction screen and the oil pressure screen or oil filter to look for any blockage
or contamination. If blockage or contamination is found, remove the blockage and
contamination and change the oil.
O. Clean the oil suction screen and, if necessary, replace the oil filter.
P. Install the suction screen and oil pressure screen (or new oil filter) per instructions in Chapter
12-10 of the IO-360-N1A Engine Service Manual.
Q. Add oil per Chapter 12-10 of the IO-360-N1A Engine Service Manual.
R. Record the results of the flight test in the engine logbook.
S. Correct any problems before releasing the engine back into service.
2. Continue to operate the engine at cruise power settings of 65% to 75% for 50 hours or until oil
consumption stabilizes.
Flight Test
Page 38
IO-360-N1A Engine Installation and Operation Manual
0.006 x BHP x 4 ÷ 7.4 = Qt./Hr.
© 2016 Avco Corporation. All Rights Reserved
February 2016