A/C Compressor Removal - Hummer H1 Service Manual

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2-50 Engine
Fan and Pulley Removal
1. Insert spanner J–41240-1 in holes in water pump pulley
(Figure 2-62).
2. Use spanner to hold water pump shaft and wrench J–
41240-5A to loosen nut securing fan clutch to water pump.
3. Remove bolts attaching fan to fan clutch.
4. Remove fan and clutch from water pump.
5. Remove crankshaft pulley attaching bolts and remove
pulley (Figure 2-62).
6. Remove torsional damper bolt with socket and impact
wrench. Retain damper bolt and washer.
7. Loosen torsional damper with tool J–23523-F (Figure 2-63).
8. Remove damper and woodruff keys from crankshaft.
Figure 2-63: Torsional Damper Removal
KEY
DAMPER
BOLT AND
WASHER
Figure 2-64: Torsional Damper Attachment
Alternator and Bracket Removal
1. Remove alternator mounting bolts and remove alternator.
2. Remove alternator mounting and support bracket bolts and
remove both brackets (Figure 2-65).
3. Remove filler neck strap bolts and remove filler neck if
desired (Figure 2-65).
DAMPER
TOOL J–23523-F
CRANKSHAFT
ALTERNATOR
REAR
SUPPORT
BRACKET
MOUNTING BRACKET AND PULLEYS
Figure 2-65: Alternator and Bracket Removal

A/C Compressor Removal

1. Remove A/C compressor braces.
2. Remove bolts/nuts attaching compressor to mounting
bracket and remove compressor (Figure 2-66).
Figure 2-66: A/C Compressor Removal
OIL FILLER NECK
A/C
COMPRESSOR
ENGINE
BRACKET
®