TM 5-3805-281-24-2
Cooling System
VISUALLY INSPECT WATER PUMP
INSPECT WEEP HOLE:
Inspect water pump weep hole (A) in timing gear cover for
oil or coolant leakage.
Oil leakage indicates a damaged rear seal.
Coolant leakage indicates a damaged front seal.
Replace complete water pump assembly if leakage is
Water Pump Weep Hole
detected; individual repair parts are not available.
INSPECT FOR IMPELLER CONTACT WITH COVER:
1. Remove radiator-to-water pump hose from water pump
inlet elbow.
2. Using a flashlight, inspect I.D. of water pump cover for
internal impeller contact.
Impeller contact with cover usually indicates that
impeller has moved on shaft or there is a damaged
bearing.
Replace water pump assembly and cover as necessary
if impeller contact is detected.
RG,RG34710,1243
1923OCT971/1
REMOVE WATER PUMP ASSEMBLY
The water pump should be removed from the timing gear
cover for replacement purpose only. There are no service
parts available to repair water pump, replace as a
complete assembly.
Continued on next page
RG,RG34710,1244
1923OCT971/4
