12.3 Mechanical System
Possible Cause:
No valve clearance.
Leaking or sticking valve.
Strong accumulation of deposit in the
combustion chamber.
Propeller unbalance.
Engine suspension defective.
Excessive gas leakage at the piston.
Bearing defective.
Engine defective.
Edition: 01.03.2016
Operating Manual L 2000
Remedy:
Set valve clearance.
Repair cylinder head.
Note:
In some cases, fuel tanks made out of com-
posite materials have been proven to be in-
compatible with the fuel, thus causing the
tank material to dissolve. In such cases, the
complete fuel system must be cleaned or
even be re placed.
Demount cylinder heads, remove deposits.
Balance propeller. Check propeller blade
track.
Replace engine suspension.
Repair engine.
Repair engine.
Repair engine.
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