Lycoming IVO-540 Series, Operator'S Manual

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SECTION 4 LYCOMING OPERATOR’S MANUAL
PERIODIC INSPECTIONS VO, IVO & TIVO-540 SERIES
(2) Check cylinders for evidence of excessive heat which is indicated by burned paint on the cylinder.
This condition is indicative of internal damage to the cylinder and, if found, its cause must be
determined and corrected before the aircraft resumes operation.
4. 50-HOUR INSPECTION (TURBOCHARGER).
a. All fluid lines and mounting brackets incorporated in the turbocharger system should be checked for
leak tightness and any damage that could cause a restriction.
b. Check for accumulation of dirt or other interference with the linkage which might impair operation of
turbocharger. Clean or correct cause of interference.
c. The vent line from the actuator should be checked for oil leakage. Any constant oil leakage is cause
for replacement of piston seal.
5. 100-HOUR INSPECTION (ENGINE). In addition to the items listed for daily pre-flight and 50-hour
inspection, the following maintenance checks should be made after every one hundred hours of operation.
a. Electrical System – Check all wiring connected to the engine or accessories. Any shielded cables that
are damaged should be replaced. Replace clamps on loose wires and check terminals for security and
cleanliness.
b. Magnetos – Check condition of breaker points. Check for excessive oil in the breaker compartment, if
found, wipe dry with a clean lintless cloth. The felt located at the breaker points should be lubricated
in accordance with the magneto manufacturer’s instructions. Check magneto timing. Timing
procedure is described in Section 5. 1. b. of this manual.
c. Engine Accessories –
Engine mounted accessories such as pumps, temperature and pressure sensing
units should be checked for secure mounting, tight connections and terminals.
d. Cylinders – Check cylinders visually for cracked or broken fins.
e. Engine Mounts – Check engine mounting bolts and bushings for security and excessive wear. Replace
any bushings that are excessively worn.
f. Primer Nozzles – Disconnect primer nozzles from engine and check for equal fuel flow.
g. Fuel Injection Nozzles and Fuel Lines – Check for dye stains at connections (indicating leakage), and
security of lines and nozzles.
h. Lubrication System – Drain and refill external oil tanks of more than 15 quart capacity.
6. 100-HOUR INSPECTION (TURBOCHARGER).
a. Inspect all air ducting and connections in system for leaks. Make inspection with engine shut down
and operating. Check at manifold connections to turbine inlet and at engine exhaust manifolds.
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