First, the failure of the oil supply system
1. There is gas in the fuel system.
Remedy: Use an oil pump to remove air from the system and check the system for leaks.
2. There is a blockage in the fuel system.
Remedy: Disassembly cleaning
3. The oil pump does not supply oil or intermittent oil supply.
Remedy: check and repair
4, the fuel injection pump is poorly injected
Remedy: Check the injector spray condition
5, the fuel supply advance angle is wrong
Remedy: Check the fuel pump plunger, the oil outlet valve wear and the oil valve spring is broken.
6. The intake damper is not open or the oil cut handle is in the oil cut position.
Remedy: Open the intake damper or place the fuel cut handle in the oil supply position.
Second, the pressure is insufficient
1, the piston is worn and worn
Remedy: Replace the piston ring
2, piston ring cementation
Remedy: remove the glue
3, valve leakage
Remedy: valve spring break or elastic force reduction, improper valve clearance, valve cone sealing is not strict, do the corresponding treatment.
4, the end of the compression temperature is low
Remedy: The outside temperature is low, and it is solved by preheating.
Third, the failure of the electrical system
1, battery power is insufficient
Remedy: Recharge to meet the specified requirements
2, electrical system wiring is poorly connected
Remedy: Check if the wiring is correct and reliable
3. The contact between the electromechanical brush and the commutator is poor.
Remedy: Repair or replace the brush and clean the surface of the commutator with fine sandpaper to blow off the dust
4, the starter clutch plate torque is insufficient, slipping
Remedy: add spacers and adjust
5, the starter gear can not be embedded in the flywheel ring gear. Remedy: find out the cause and deal with
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