Lycoming TEO-540-C1A Maintenance Manual page 121

TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual
Problem
Engine surges
Irregular oil pressure
Low oil pressure
© 2018 Avco Corporation. All Rights Reserved
November 2018
Table 1 (Cont.)
Fault Isolation Guide
Cause
Fuel injectors are dirty
Low engine oil level
Malfunctioning propeller
governor
Incorrect propeller
governor
Breather is blocked
Faulty oil pump
Propeller blades are
intermittently sticking in
hub
Front main bearing has
too much clearance
Oil pump is sucking air
Oil not of the correct
viscosity for ambient
temperature
Low engine oil level
Corrective Action
Replace the fuel injector.
Complete a check of the oil
level. Add oil. Refer to the
sections "Oil Level Check" and
"Add Oil to the Engine."
Refer to the Aircraft
Maintenance Manual.
Make sure that the propeller
governor is the correct part
number per the aircraft IPC.
Examine the breather for
obstructions. Remove all
obstructions.
Replace the oil pump per the
"Oil Pump Removal" and "Oil
Pump Installation" procedures.
Remove and overhaul the
propeller as per the propeller
manufacturer's instructions.
Complete a "Propeller Oil
Control Leak Test".
Replace the oil pump per the
"Oil Pump Removal" and "Oil
Pump Installation" procedures.
Make sure oil of the correct
viscosity for the ambient
temperature is used.
Complete a check of the oil
level. Add oil. Refer to the
sections "Oil Level Check" and
"Add Oil to the Engine."
Ref.
73-10
12-10
AMM
72-25
72-25
72-25
IOM
Appendix A
12-10
12-30
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