Engine Overview and Common Failures
The weight of the EP6DT engine with attachments is 135 kg. The EP6DT engine number is located at the front where it joins the gearbox. The Prince series turbo engines are equipped with a rather temperamental direct injection system, which is not only demanding in terms of fuel, but also suffers from rapid valve coking. In addition, there is an unreliable fuel injection pump, which often lasts less than 50,000 km. The timing chain has a low lifespan. In the early years of production, the components of the timing chain may have required replacement as early as 30,000 km, and although the lifespan has slightly increased, it still does not exceed 50-70,000 km. The weak link in the system is considered to be the tensioner, which has already undergone several revisions. There is high oil consumption. Often, these turbo engines consume oil from the first kilometers, but excessive oil consumption usually begins after the piston rings have seated or due to wear of the oil control rings or the VKG membrane. If the lubrication level is neglected, the camshafts will almost immediately seize. The power unit tends to overheat. This engine has a very demanding thermal regime, and moreover, the water pump, thermostat, and coolant temperature sensor are not known for their reliability. Their failure often leads to cracks in the cylinder head or valve seat recession. Other engine problems include oil or coolant leaks, frequent vacuum pump seizing, which can result in camshaft damage and timing chain failure, and coke formation in the oil supply tubes, significantly reducing the turbine's lifespan.