are provided on the right and left hand sides of
the operator's compartment.
The diesel engines are Baldwin, eight-cylinder,
normally aspirated four-cycle type developing
rated power at 625 r.p.m. The cylinders have a
12 3/4-inch bore and a 15 1/2-inch stroke.
The engine bed and frame are weldments of
steel, giving a rigid structure of uniform material
with strength built in where it is needed. The
frame is integral with the upper part of the crank-
case and this, in turn, is bolted to the lower part
of the crankcase which is a part of the bed struc-
ture. The cylinder liners, housed in the frame, are
of the removable sleeve type of centrifugally-cast
nickel iron. The wearing surface of each liner is
honed within close tolerances and then chrome
plated to give longer life to liners and rings and
to minimize the chance of piston seizure.
The crankshaft is a heat-treated, solid steel
forging, drilled for pressure lubrication, with 8 3/4-
inch main bearing journals and 8 3/8-inch crank
pins. Main bearings are removable without lifting
the crankshaft. Drop forged, alloy steel connecting
rods of the four-bolt type are used.
The cylinder heads, embodying the turbulence
combustion chamber, are separate castings of air
furnace iron. The pistons are cast from heat-
treated aluminum alloy and are fitted with five
compression rings and three oil rings.
The valves are alloy steel, seated in the cylin-
der heads and actuated by rocker arms. The fuel