Hummer H1 (1992-1998). Manual - part 5

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2 - 1 5 . ENGINE DISASSEMBLY INTO SUBASSEMBLIES (Cont’d)

b. Crankshaft Pulley

Remove four capscrews (9), crankshaft pulley (6), and spacer (8) (if installed) from torsional damper (7).

2.

Using a 5/16-in. hex-head driver, remove four socket-head screws (1) and fan drive (2) from water

pump pulley (3).

3.

Using a 6-mm hex-head driver, remove four socket-head screws (5) and water pump pulley (3)

from water pump (4).

2-15. ENGINE DISASSEMBLY INTO SUBASSEMBLIES (Cont’d)

c. Torsional Damper

1. Hold flywheel stationary with pry bar.

2. Remove capscrew (1) and washer (2) from torsional damper (3) and crankshaft (5).

3. Reinstall capscrew (1) and remove torsional damper (3) with puller.

4. Remove capscrew (1) and woodruff key (4) from crankshaft (5). Discard woodruff key (4).

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2-12.1

2 - 1 5 . ENGINE DISASSEMBLY INTO SUBASSEMBLIES (Cont’d)

c.1.

Wastegate Actuator

1.

Remove clip (11) and actuator rod (6) from wastegate bellcrank (12).

2.

Remove two capscrews (8) from wastegate actuator (7) and wastegate housing (10).

3.

Remove capscrew (13) and wastegate actuator (7) from cylinder head (9).

c.2.

Wastegate Housing

Remove four capscrews (14) and wastegate housing (10) from turbocharger (15).

NOT E

Perform tasks c.1 through c.4 for 6.5L turbo engines only.

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2 - 1 5 . ENGINE DISASSEMBLY INTO SUBASSEMBLIES (Cont’d)

c.3.

Manifold-to-Turbocharger Exhaust Pipe

1.

Loosen clamp (5) and remove exhaust pipe (1) from exhaust manifold (4).  Slide clamp (5) onto
exhaust pipe (1).

2.

Loosen clamp (2) and remove exhaust pipe (1) from turbocharger (3).  Slide clamp (2) onto exhaust
pipe (1).

3.

Remove clamps (2) and (5) from exhaust pipe (1).

4.

Repeat steps 1 through 3 for opposite side of engine.

c.4.

Turbocharger

NOTE

Center inlet manifold must be removed before removing
turbocharger.

1.

Remove two capscrews (5.2) and turbocharger (5.4) from engine block (5.5).

2.

Remove turbocharger oil gasket (5.1) from engine block (5.5). Discard gasket (5.1).

3.

Remove O-ring (5.3) from turbocharger (5.4) outlet. Discard O-ring (5.3).