Lycoming TEO-540-C1A Maintenance Manual page 125

TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual
Problem
Excessive oil
consumption (Cont.)
High oil temperature
© 2018 Avco Corporation. All Rights Reserved
November 2018
Table 1 (Cont.)
Fault Isolation Guide
Cause
Oil siphoned from engine
during flight
Oil level too high
Breather blocked or
restricted.
Cam spacer not installed.
Cooling baffles are
missing, broken, or
incorrectly installed
Oil level is too low
Incorrect grade of oil
Oil cooler bypass valve is
not operating correctly or
seating accurately
Corrective Action
1. Verify that the oil level gage
(dipstick) is secure and the
oil access door closes
correctly.
2. Make sure that the breather
hose is accurately cut and
installed to prevent
siphoning.
Do not fill above the maximum
oil sump capacity.
Drain some oil (start of "Oil
Change Procedure.")
Clear breather hose blockage or
restriction.
Borescope breather tube in
accessory housing to ensure
cam spacer is installed.
Ensure that all baffles are
installed correctly and none are
broken. Replace as necessary.
NOTICE: Never modify,
relocate, or eliminate any
cooling baffles.
Complete the "Oil Level
Check" at regular intervals.
Complete the "Add Oil to the
Engine" procedure as
necessary. Keep oil at the
specified level.
Use the correct grade of oil per
the latest revision of Service
Instruction No. SI-1014.
Replace the oil cooler bypass
valve. Refer to the latest
revision of Service Instruction
No. SI-116.
Ref.
12-10
IOM
Appendix A
12-10
AMM
72-20
12-10
72-50
12-30
Page 95