Commonly used Yuchai engine models are: YC6108, YC6M, vulnerable parts are: Piston and cylinder liner kit Yuchai four matching, connecting rod tile, crankshaft, crankshaft tile, Engine Turbocharger, air pump, China Diesel Engine Injector, high pressure oil pump, whole machine pad, etc..
Engine start failure:
Failure to start an engine is one of the most common faults in a car. There are two kinds of situations: one is that you can hear the starting sound of the starter, but the engine can not start. The other was to turn the key and make no sound.
In the first case, the starter works, but the engine does not. This situation is complicated because it could be the result of one of many failures.
It is rare for two or more failures to occur at the same time, but not always.
(1) The first possibility is circuit or electronic failure. What happens is that
It was very sudden. There was no warning. Circuit faults include: fuse burn out, high voltage coil break, low voltage circuit break, center point fire line off, spark head leakage, spark plug damage. Electronic failure mainly refers to the failure of the central computer control board.
(2) Then is the oil circuit failure. Flameout caused by oil circuit failure
Often have weak engine, refueling pedal on cotton symptoms. Oil circuit failure may occur in the following parts: oil pump failure, oil circuit blockage, oil filter blockage, carburetor failure, nozzle damage and so on. Sometimes it happens that the tank is empty without the owner knowing. A few litres of petrol fixed everything.
(3) It could also be a mechanical failure. Common mechanical faults are: time belt (chain) fracture, cylinder leakage without pressure and so on.
The second case is that even the starter does not work or barely work. The first thing to check at this time is the battery or battery. There are many ways to check, and it's best to have a voltmeter handy. Connect the positive and negative terminals of the battery, then turn the key and start the fire. If the voltage indication drops below 8 volts immediately after switching on, something must be wrong with your battery. It doesn't matter if you don't have a voltmeter, use a small 12-volt bulb and a small piece of power cord instead. The method is the same, if the bulb suddenly significantly dimmer a lot, also indicates battery aging. In many cases, the battery is dead, but it still lights up. This is not surprising. Only at the moment of ignition can we really test the performance of the battery. Because that's when it's loaded the most.
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