 in assembling.  wheel arrangement. |
turbocharger. Each engine. Model 608, develops 1,500 hp at 625 rpm. The bedplate is a weldment of steel with heavy transverse webs to support the bearings and to maintain proper crankshaft alignment. The en- gine frame, forming the cylinder housing and the upper half of the crankcase, is likewise a steel weldment. The crankshaft is a heat-treated solid steel forging drilled for pressure lubrication. Crankshaft journals are 8 3/4 inches in diameter while crank- pins are 8 3/8 inches in diameter. Main engine bearings can be removed through the inspection ports without disturbing the crankshaft. Connecting- rods are made of drop forged, heat-treated alloy steel with interchangeable bearing shells. Each connecting-rod cap is secured by means of four heat-treated alloy steel bolts. A bronze wrist- pin bushing is pressed into the eye-end of each rod. The connecting-rods are drilled for the lub- rication of wrist-pin bearings. The cylinder liners are cast iron with bores honed and chrome-plated. They are mounted in the engine frame and fitted with rubber seal rings at the lower end. The heat-treated aluminum alloy pistons are cooled by means of a constant flow of oil passing through a "cast-in" steel coil. Each piston has five compression rings and three oil rings-one of the latter being placed above the wrist-pin and two below. Cylinder heads are in- 8 |