Hummer H1 Service Manual page 130

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TORSIONAL DAMPER AND CRANKSHAFT
PULLEY INSTALLATION
1. Install damper key in crankshaft (Figure 2-186).
2. Lubricate crankshaft hub, damper seal contact surface, and
damper hub bore with engine oil or chassis grease.
3. Align and install damper on crankshaft.
4. Install washer and damper bolt. Tighten bolt 200 lb-ft (270
N•m) torque. Have helper prevent crankshaft from turning
with holding tool installed on flywheel.
DAMPER KEY
TORSIONAL
DAMPER
SEAL SURFACE
Figure 2-186: Torsional Damper Installation
Fan and Pulley Installation
1. Install crankshaft pulley and bolts (Figure 2-187).
2. Slide fan onto clutch and install bolts finger tight.
3. Install fan and clutch assembly on water pump shaft.
4. Hold water pump shaft with spanner J–41240-1 and
tighten clutch nut to 80-100 lb-ft (108-135 N•m) with
wrench J–41240-5A.
5. Torque fan bolts to 15-20 lb-ft (20-27 N•m).
WRENCH
CLUTCH
PULLEY
Figure 2-187: Fan and Pulley Installation.
05745159
CRANKSHAFT
FAN
SPANNER
TURBOCHARGER AND INTAKE MANIFOLD
INSTALLATION
1. Apply Permatex High Tack to manifold gaskets and posi-
tion gaskets on cylinder heads.
2. Install left/right side manifold halves. Tighten attaching
bolts/studs to 31 lb-ft (42 N•m) torque.
3. Mount turbocharger or cylinder block, and install
attaching bolts, nuts, and brackets. Tighten attaching bolts/
nuts to 43 lb-ft (58 N•m) torque.
4. Connect exhaust inlet tubes to exhaust manifolds and
turbocharger (Figures 2-8 and 2-9). Tighten exhaust tube
flange clamps to 7 lb-ft (10 N•m) torque.
NOTE: Do not install the intake manifold crossover housing at
this time. The housing will not be installed until after the en-
gine is installed in the vehicle.
5. Install alternator mounting brackets, and idlers on right
side cylinder head.
6. Install power steering pump and mounting brackets.
7. Install A/C compressor and braces.
8. Install crankshaft pulley. Tighten pulley attaching bolts to
48 lb-ft (65 N•m) torque.
9. Install water pump pulley, if not installed before this.
10. Install fan and clutch assembly. Tighten attaching bolts/
nuts to 15-20 lb-ft (20-27 N•m) torque.
11. Install serpentine belt.
12. Install glow plugs, if not previously installed. Tighten
plugs to 13 lb-ft (18 N•m) torque.
13. Install wire harness and hose brackets.
Engine 2-93