Lycoming IVO-540 Series, Operator'S Manual

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SECTION 5 LYCOMING OPERATOR’S MANUAL
MAINTENANCE PROCEDURES VO, IVO & TIVO-540 SERIES
3. LUBRICATION SYSTEM.
a. Oil Grades and Limitations – Service the engines in accordance with the recommendations shown on
page 3-6.
It is recommended that the lubricating oil be changed as follows:
External tank – 10 to 15 quart capacity – Every 50 hours
External tank – over 15 quart capacity – Every 100 hours
b. Pre-Oiling Procedure - Dry Sump Engines (Following installation or a prolonged period if idleness) -
(1) Fill the oil tank to proper level
(2) Disconnect the oil inlet connection at the oil pump and drain a sufficient amount of oil to eliminate
any possible obstruction or air in the inlet passage.
(3) Reinstall oil inlet connection.
(4) Remove one spark plug from each cylinder.
(5) Put fuel and ignition switches in “off” position.
(6) Turn engine with starter until a minimum pressure of 20 lbs. is indicated on the gauge.
(7) Allow starter to cool and again engage starter for several ½ minute periods. Allow starter to cool
after each engagement.
NOTE
Lack of pressure build-up or rapid drop-off of pressure is an indication of air in the line. To
remedy this, repeat steps (2) and (3) and continue until pressure is indicated.
(8) Reinstall spark plugs.
NOTE
These steps are necessary in all dry sump engines to avert possible high speed bearing
failure during initial starts.
c. Oil Filter – Clean the engine oil filter as follows: Under normal conditions, washing the filter
assembly with Varsol and compressed air will be sufficient. If the filter is heavily carboned, it may be
dipped in a decarbonizing solution (usually heated). A great many decarbonizing agents are available,
including such products as Gunk, Penetrol and many others. The loosened carbon can be washed away
with Varsol and compressed air. The filter may also be cleaned by boiling in water and a commercial
detergent for a period of ten minutes, rinsed and dried with compressed air.
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