When an aviation piston engine is parked for a short period of time (such as a few days to a few weeks), although the time is relatively short, the necessary maintenance is still required to ensure that the engine can operate properly when it is restarted. The following are the main points of short-term parking maintenance of aviation piston engines:
First, fuel system maintenance
Check the fuel system:
Before parking, check the fuel system for leaks, and ensure that the fuel pump, fuel filter and other components are working properly.
If conditions permit, fuel stabilizers can be added to prevent fuel deterioration during parking.
Second, oil system maintenance
Check oil level and quality:
Before parking, check whether the lubricating oil level is within the specified range, and observe whether the lubricating oil has impurities or discoloration.
If the oil quality is not good, the oil should be replaced in time.
Keep the oil system clean:
During parking, ensure that the lubricating oil system is clean to prevent dust and impurities from entering.
Third, ignition system and electrical system maintenance
Check the ignition system:
Before parking, check the ignition coil, high voltage wire, spark plug and other components are working properly.
If there is a fault in the ignition system, it should be repaired in time.
Disconnect the power supply:
During parking, if you do not need to use the engine, it is recommended to disconnect the power supply to the engine to prevent moisture or short circuit of the electrical system.
Fourth, cooling system maintenance
Check the cooling system:
Before parking, check whether the water tank, water pump, radiator and other components are working properly.
If the cooling system is found to be faulty, it should be repaired in time.
Drain coolant (optional) :
In some cases, it may be considered to drain the coolant to prevent deterioration of the coolant during parking. Note, however, that after the coolant has been drained, it will need to be refilled before restarting the engine.
Fifth, the body and accessories maintenance
Clean the body:
Before parking, clean the engine body to remove oil and dust.
Check the attachment:
Check whether the engine accessories (such as starter, generator, etc.) are fixed firmly, and whether the connection line is intact.
If the accessories are found to be faulty or damaged, they should be repaired or replaced in time.
Sixth, other maintenance measures
Prevent foreign objects from entering:
During parking, ensure that components such as engine intake and exhaust ports are well sealed to prevent dust and foreign objects from entering the engine interior.
Keep the engine well ventilated:
During parking, ensure that the engine is well ventilated to prevent moisture or rust inside the engine.
Record maintenance information:
Record the information about each maintenance, including the maintenance date, maintenance content, and replacement parts, for future reference.
Seventh, check before re-use
Check engine appearance:
Check the appearance of the engine for damage or anomalies before reactivating it.
Check fuel and oil systems:
Before restarting, check that the fuel and oil system is working properly and ensure that the fuel and oil levels are within the specified range.
Start the engine and check the performance:
Before restarting, start the engine and check that its performance is normal. If any abnormal phenomenon is found, it should be investigated and repaired in time.
In summary, the short-term parking maintenance of aviation piston engines is relatively simple, but it is still necessary to pay attention to the maintenance of fuel system, lubricating oil system, ignition system and electrical system, cooling system, body and accessories. With careful maintenance measures, you can ensure that the engine will be able to operate properly when it is restarted.
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