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Page Title:
Fluctuating engine oil pressure. |
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 TM 55-1510-218-MTF
f. Excessive hot air leakage through faulty heat
shielding.
E9.
Fluctuating engine oil pressure.
a. Insufficient or excess oil.
b. Defective oil pressure indicating system.
c. Dirty oil filter.
d. Defective pressure relief valve.
E10.
High oil temperature.
a. Insufficient oil supply.
b. Defective oil temperature indicating system.
c. Excessive idling in feather.
d. Restriction in oil cooler.
E11.
Oil leak from compressor inlet.
a. Defective preformed packing and plastic
ring on oil filter housing.
b. Defective preformed packings on accessory
E12.
Excessive oil discharge from overboard breather.
a. Excess oil in tank.
b. Defective preformed packing and plastic
ring on oil filter.
c. Excessive back pressure in scavenge system
due to restrictions in oil scavenge tubes.
pump screen or oil-to-fuel heater tubes.
E13.
Excessive engine oil consumption.
a. Excess oil in tank.
b. Leak or restriction in pressure scavenge oil
tube.
c. Defective preformed packing and plastic
ring on oil filter housing.
d. Leakage in oil to fuel heat exchanger.
e. Defective centrifugal breather carbon seal.
3-19
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