Of the four-cylinder turbo diesel engine T 4236 the company Perkins piston mass m3 = 1, 804 kg, and the replacement mass m21 = 1, m23 = 528 kg and 0.624 kg the connecting rods are known. The crank radius l1 = 63.5 mm and the connecting rod length 12 = 218.9 mm. The connecting rods are in the focus distance ls2 = 63.484 mm from the center of each crank-side connecting rod bearing. The imbalance ms1s1 each crank throw is U = 2.05 kgmm