Before starting the adjustment, flush the oil chamber of the pump and regulator with clean diesel fuel and fill with fresh engine oil up to the level of the drain hole. For the duration of the test, plug the drain fitting

Draining sediment from the fuel coarse filter, washing the filter

Unscrew the drain plug 6 (Fig. 1), drain the sediment from the filter.

The YaMZ-238 diesel engine is equipped with a turbocharger that uses the energy of exhaust gases to boost the engine

The engine cooling system (fig. 1) is liquid, circulating, including a water pump, a liquid-oil heat exchanger, a fan, thermostats

Motors are equipped with a friction fan drive designed to turn the fan on and off depending on operating conditions

Dismantling and assembling the cylinder head

Remove the cylinder head only to troubleshoot parts of the cylinder-piston group, cylinder head gasket, valves, or to replace the head itself