Hummer H1 (2002+). Manual — part 34
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Engine 2-97
®
05745159
SERVICE PISTON AND CYLINDER BORE SPECIFICATIONS (MM)
NOTE: Cylinders #7 and #8 require 0.013 mm (0.005 in.) additional clearance (piston to bore).
CRANKSHAFT MAIN JOURNAL DIAMETER AND BEARING SELECTION (MM)
NOTE: U.S. indicates undersize bearing. Bearing sizes are in millimeters. To convert from metric to U.S. sizes, multiply metric
(mm) figure by 0.03937.
CRANKSHAFT CONNECTING ROD JOURNAL DIAMETER AND BEARING SELECTION (MM)
NOTE: To convert metric to U.S. sizes, multiply metric (mm) figure by 0.03937.
Engine
Displacement
Piston Grade
Skirt Diameter
Bore Diameter
1 thru 6
Bore Diameter
7 & 8
6.5L
Production Std.—JT
102.865-102.880
102.972-102.987
102.985-103.003
Production Rework —
S or ST
103.008-103.026
103.117-103.130
103.130-103.143
Service Std.‚—JT
102.865-102.883
102.972-102.990
102.985-103.003
Service Hi Limit—GT
102.904-102.922
103.013-103.026
103.026-103.039
0.50 MM Oversize
103.339-103.417
103.508-103.512
103.521-103.525
6.5L Engines
Crankshaft Main Journal Diameter
Cylinder Main Bearing Bore Diameters
#1 to #4
#5
79.850
79.842
Stamp 3
79.842
79.834
Stamp 2
79.834
79.826
Stamp 1
74.917
74.925
Blue
74.912
74.920
Blue
1-.026 U.S. in Case
1-.026 U.S. in Cap
1-.013 U.S. in Case
1-.026 U.S. in Cap
1-STD in Case
1-.026 U.S. in Cap
74.925
74.933
Orange or Red
74.920
74.928
Orange or Red
1-.026 U.S. in Case
1-.013 U.S. in Cap
1-.013 U.S. in Case
1-.013 U.S. in Cap
1-STD in Case
1-.013 in Cap
74.933
74.942
White
74.928
74.936
White
1-.026 U.S. in Case
1-STD in Cap
1-.013 in Case
1-STD in Cap
1-STD Case
1-STD in Cap
Crankshaft Pin Journal
Diameter
Connecting Rod
Bearings
Rod & Cap Bearings
Color Codes
Connecting Rod ID
60.913 mm
60.926 mm Green
Standard in rod
.026 U.S. in cap
.026 U.S.
(Green)
64.150 mm
64.124 mm
60.926 mm
60.939 mm Yellow
Standard in rod
Standard in cap
Standard
(Yellow)
2-98
Engine
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®
BLOCK, CAMSHAFT AND BEARING SIZES (MM)
NOTE: To convert metric to U.S. sizes, multiply metric (mm) amount by 0.03937.
6.5L Engines
Camshaft Journal Diameter O.D
(Diameter Tolerance 0.55 mm)
#1
#2
#3
#4
#5
55.025
54.970
55.025
54.970
55.025
54.970
55.025
54.970
51.025
50.970
Finished Cam Bearing ID
(Diameter tolerance 0.038 mm)
55.088
55.050
55.088
55.050
55.088
55.050
55.088
55.050
51.083
51.045
Camshaft Bearing Clearance
.118
.025
.118
.025
.118
.025
.118
.025
.113
.020
Cam Bore Diameter (Block)
59.17
59.12
58.92
58.87
58.67
58.62
58.42
58.37
50.42
50.37
Cam Bearing O.D.
59.30
59.25
59.05
59.00
58.80
58.75
58.55
58.50
50.55
50.50
Press Fit (Bearing to Block)
.18
.08
.18
.08
.18
.08
.18
.08
.18
.08
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Engine 2-99
®
05745159
ESSENTIAL TOOLS
Procure from Kent-Moore.
J–26999-30
J–33139
J–34116
J–22102
J–23523-F
J–23951
J–26999
J–39084
J–35555
J–41240-1
J–41240-5A
Tool No.
Description
J–23523-F
Harmonic Balancer Remover/Installer Set
J–26999-30
Compression Gauge Adapter
J–22102
Front Crankshaft Seal Installer
J–26999
Compression Gauge
J–39084
Rear Main Seal Installer
J–33139
Engine Lifting Sling and Bracket
J–23951
Water Manometer
J–35555
Vacuum (MITY-VAC) Pump
J–8001
Dial Indicator Set (not shown)
J–23129
Universal Seal Remover, use with slide hammer J–6125-1B (not shown)
J–41613
Turbocharger Inlet Guard (not shown)
J–41415-A
Glow Plug Socket (not shown)
J–41240-1
Spanner, Fan Clutch (not shown)
J–41240-5A
Wrench, Fan Clutch (not shown)
2-100
Engine
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®
SPECIAL TOOLS
Procure from Kent-Moore.
Tool No.
Description
J–29834
Valve Lifter Removal Tool
J–8080
Main Bearing Shell Remover/Installer (In-Vehicle)
J–6098-10
Camshaft Bearing Remover/Installer (use with J–33049)
J–8062
Valve Spring Compressor
J–33042
Static Timing Mark Gauge
J–33049
Camshaft Bearing Replacement Set (Universal)
J–24270
Ridge Reamer
J–29134-8
Piston Pin Retaining Ring Compression Sleeve
J–8087
Cylinder Bore Gauge
J–39507
Piston Retaining Ring Installer Set
J–8089
Carbon Remover Brush, for cast iron and steel
J–8358
Carbon Remover Brush, for aluminum
J–25087-C
Oil Pressure Tester/Pump Primer
J–8037
Piston Ring Compressor
J–8101
Valve Guide Cleaner (not shown)
J–42525
Piston Ring Expander (not shown)
J–6098-O1
Camshaft Bearing Remover/Installer, use with J–6098-10 and J–33049 (not shown)
J–8080
J–33042
J–8089
J–25087-C
J–8037
J–29834
J–8062
J–24270
J–33049
J–8087
J–39507
J–6098-10
J–29134-8
or
J–8358
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