TM 5-3805-281-24-2
Cooling System
CAUTION: Explosive release of fluids from
pressurized cooling system can cause serious
burns. Wait until engine coolant is cool enough
to touch with bare hands before draining.
Slowly loosen radiator cap to first stop to
relieve pressure.
1. Open water pump drain valve (A) and block drain valve
(B) to drain coolant from engine.
Water Pump Drain Valve
Cylinder Block Drain Valve
RG,RG34710,1244
1923OCT972/4
2. Remove hose from water pump cover inlet elbow,
shown removed.
3. Remove six cap screws securing water pump cover (A)
to timing gear cover and remove water pump cover
with bypass tube (B).
4. Remove gasket from timing gear cover and discard.
Remove bypass tube from cover. Inspect bypass tube
seal in water pump cover, replace seal as needed.
(See REPLACE BYPASS TUBE SEAL IN WATER
PUMP COVER, later in this group.)
Removing Water Pump Cover
Continued on next page
RG,RG34710,1244
1923OCT973/4
11-313