Diameter of channels of an inlet collector is increased, and length is optimized to improve performance data of the engine.

Fig. 2.197. Inlet collector: 1 – channel of the cooling system of the engine; 2 – rubber covering

The channel of the cooling system of the engine connects the left and right ranks of cylinders in a back part of an inlet collector (see fig. 2.197). The surfaces of laying of an inlet collector have a rubber covering that increases their operational reliability.