Cylinder block

The technological feature of the new cylinder block is that it is cast from an aluminum alloy with cast-iron cylinder liners installed inside the body. This improves heat dissipation and reduces its weight. Cylinder liners are thin walled, so boring is not possible. In addition, as already mentioned, the cylinder block is equipped with a long piston skirt and an integrated main bearing cap. The water jacket of the cylinder block is of a closed type, which increases rigidity and helps to reduce vibration and noise. The cylinder block oil separator cover is located on the opposite side of the air intake. The crankcase ventilation valve and oil separator with an adapter for installing a ventilation valve improve the efficiency of crankcase ventilation.



The new cylinder block does not use main journal bearing dowels. The cylinder head bolts have a tightening torque in the plastic zone, tightening is carried out in five steps. This ensures the stability of the bolt axis during tightening (pic. 2.6).




The technological hole for installing a special device used to detect the TDC position of the first cylinder is located on the right side of the cylinder block. The TDC position is determined by touching the edge of the special device of the balancer of the first cylinder (pic. 2.7).