TM-5-3805-254-14-P-2

TRUCK, DUMP, 20 TON, 6X4, ON-OFF HIGHWAY 71,000 GVW, IHC MODEL F-5070 (CCE)

TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, GENERAL SUPPORT AND DEPT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS INFORMATION AND SUPPLEMENTAL MAINTENANCE INSTRUCTIONS)

JUNE 1980

TM-5-3805-254-14-P-2 - Page 244 of 894

MOTOR TRUCK SERVICE MANUAL

COOLING SYSTEM

GENERAL

Engine Water Jacket

The water jacket permits coolant to be circulated

around the cylinder walls, combustion chamber, and

valve assemblies.

Some of these coolant passages are

small and can easily become clogged if cooling system

does not receive the proper maintenance.

Figure 2

illustrates how rust and scale deposits will accumulate

inside the water jacket on an engine that has been

neglected.