Section II. ENGINE BLOCK

TM 10-3930-621-34

Figure 3-1. Engine components sectional view.

Section II. ENGINE BLOCK

3-2. Description

wise along the lower portion of the same side to

incorporate a rifle drilled oil passage. A spring loaded

a. The engine block is cast as a unit and contains

pressure relief valve is mounted just below the center of

filleted bearing cross vials and water baffles. The

this oil passage. An outlet to supply oil to the governor is

cylinder bores are exposed to coolant for their entire

provided toward the front end of the oil passage.

lengths. Intake and exhaust ports are arranged along

the upper right side of the engine over the valve cover

openings. The block is ribbed length-

3-2