Front Cover And Timing Chain; Cover Removal - Hummer H1 Service Manual

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FRONT COVER AND TIMING CHAIN

Cover Removal

1. Disconnect and remove batteries and tray.
2. Drain engine coolant.
3. Remove radiator upper and lower hoses.
4. Loosen crankshaft pulley belts.
5. Remove left and right splash shields.
6. Disconnect hood harness then remove hood with aid of
helper. Place hinge pins in hinges after removal to avoid
losing them.
REAR SUPPORT BRACKET
RIGHT SIDE
AIR LIFT BRACKET
Figure 2-21: Condenser, Oil Coolers, Radiator and Fan Shroud Removal as an Assembly
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7. Remove A/C condenser oil coolers, radiator, and fan
shroud as assembly (Figure 2-21).
8. Loosen and remove serpentine drive belt. Use 1/2 in. drive
breaker bar to rotate belt tensioner counterclockwise to
loosen belt (Figure 2-15).
9. Disconnect heater, bypass and inlet hoses at water pump
and coolant crossover (Figure 2-22).
10. Remove
(Figure 2-22).
RADIATOR
FAN SHROUD
Engine
oil filler neck and
OIL COOLERS
CONDENSER
LOWER
MOUNT
FRAME
BRACKET
2-23
coolant crossover