Hummer H1 (2006+). Instruction - page 36
2-50
Engine
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23. Remove the power steering pump and the mounting bracket, without removing the hoses, tie the pump over to the side (Refer
to section 8).
24. Remove the A/C compressor (Refer to section 11).
25. Install lifting bracket EN-47923 on the A/C compressor mounting bracket with the lift eyelet towards the passenger side of the
engine.
26. Disconnect the main engine electrical harness connectors (Refer to section 12).
27. Remove the transmission control harness and tray from the engine (Refer to section 12).
28. Remove the starter (Refer to section 12).
29. Remove the six torque convertor bolts through the starter opening and mark the flywheel and torque converter relationship for
assembly purposes.
30. Remove the exhaust down pipe from the turbocharger (Refer to section 3).
31. Support the engine and the transmission, disconnect the right and left engine mount to frame bracket bolts.
32. Remove the left engine mount bracket from the frame rail (Refer to section 2).
33. Remove the bolts retaining the engine to the transmission.
34. Raise and remove the engine using a floor jack to keep the rear of the engine at the proper angle to guide it out of the engine
bay.
ENGINE INSTALLATION
1.
If new engine is being installed, transfer mounting brackets and insulators, generator, drive plate (flywheel), turbocharger and
necessary mounting brackets, shields, damper pulleys, sensors and fittings, from the old to the new engine.
2.
Attach lifting bracket EN-47923 to the engine.
3.
Attach a hoist to the lifting bracket. Raise the engine and guide it into the engine bay with the aid of a helper using a floor jack
to keep the rear of the engine at the proper angle to guide it in to the engine bay.
WARNING: Do not draw the engine to the transmission using the transmission bolts. If everything is aligned prop-
erly the engine and transmission will come together.
4.
Align and seat the engine on the transmission. Be sure the converter pilot hub is seated in the crankshaft and the transmission
is seated on the engine block dowels. Install 2-3 transmission attaching bolts (finger tight) to hold the engine and transmission
in place.
5.
Install the left engine mount bracket to the frame rail and torque to 55þlb-ft. (75þN·m).
6.
Install the engine mount to the frame bracket bolts and torque to 50þlb-ft. (65þN·m).
7.
Install all the transmission to engine bolts and torque to 37þlb-ft. (50þN·m).
8.
Install the torque convertor bolts and torque to 44þlb-ft. (60þN·m).
9.
Install the exhaust down pipe to the turbocharger.
10. Install the starter.
11. Install the transmission control harness and tray to the engine.
12. Install the main engine electrical harness connectors.
13. Remove the lifting bracket EN-47923 and install the A/C compressor.
14. Install the power steering pump and the mounting bracket.
15. Install the serpentine belt and the serpentine belt tensioner.
16. Install the vane position sensor to the turbocharger using Snap-on wrench RX32A or equivalent.
17. Install the CTIS compressor.
18. Install the front propeller shaft.
19. Install the center driveline protection.
20. Install the engine cover.
21. Install the air inlet hose from the air cleaner to the turbo intake tube.
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Engine 2-51
5745804
22. Install the surge tank to the right air lift bracket and install the coolant hoses from the radiator and lower radiator hose to the
surge tank.
23. Install the cooling fan, fan drive assembly and the upper portion of the front, rear crossmember as an assembly.
24. With the help of an assistant, install the cool pack assembly on the vehicle (Figure 2-44). Install the radiator support bracket
bolts and the lower radiator mount.
25. Install the charged air hose from the charged air cooler outlet to the intake pipe.
26. Install the charged air hose to the turbo outlet and the charged air cooler.
27. Install the A/C condenser lines, the transmission cooler lines, the fuel cooler lines, the T-case cooler lines, the coolant hoses
and the auxiliary coolant pump thermal switch electrical connector to the cooler pack.
28. Evacuate and charge the A/C system.
29. Fill and bleed the cooling system.
30. Fill the engine with the proper weight and level of engine oil.
31. Install the rubber and sponge pads on the air lift brackets.
32. Install the left side splash shield.
33. Install the right side splash shield and battery tray.
34. Install and connect the batteries.
35. Install the hood.
36. Perform the turbocharger learn procedure.
37. Test drive and verify proper operation of all systems affected by engine removal.
38. Inspect for fluid leaks and repair if necessary.
TORQUE SPECIFICATIONS
TORQUE SPECIFICATIONS
Item
Lb-Ft.
Lb-In.
N•m
Camshaft Gear Bolt
173
-
234
Camshaft Thrust Plate Bolt
16
-
22
Crankshaft Balancer Bolt
1st Step 74
-
1st Step 100þ
2nd Step
90þdegrees
-
2nd Step
90þdegrees
Cylinder Head M12 Bolt - Angular Tightening Method
1st Step 37
-
1st Step 50
2nd Step 59
-
2nd Step 80
3rd Step 60þdegrees
4th Step 90þdegrees
Cylinder Head M8 Bolt
18
-
25
Drive Belt Tensioner
37
-
50
Engine Block Coolant Plug
13
-
18
Engine Mount Through Bolt to Frame
55
-
75
Engine Mount to Block Bolts
43
-
58
Engine Mount to Frame Bolt
48
-
65
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2-52
Engine
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ENGINE SPECIFICATIONS
General
Engine Type
90þdegree V-8
Flywheel Bolt - Angular Tightening Method
1st Step 58
-
1st Step 79
2nd Step 60þdegrees
3rd Step 60þdegrees
Front Engine Cover Bolt
18
-
25
Glow Plug
13
-
18
Idle Pulley
37
-
50
Intake Manifold Bolts/Nuts
18
-
25
Oil Drain Plug
62
-
84
Oil Fill Tube Bolt
18
-
25
Oil Filter
18
-
25
Oil Gallery Plugs
39
-
53
Power Steering Pump Bracket Bolt
37
-
50
Power Steering Pump Bolt
37
50
Rocker Arm Shaft Bracket Bolt
30
-
41
Starter Motor Bolt
58
-
78
Thermostat Housing Bolts/Nuts
18
-
25
Thermostat Cover Bolt
18
-
25
Torque Converter Bolt
44
-
60
Turbocharger Bolt
80
-
108
Valve Adjusting Nut
16
-
22
Valve Lifter Hold down Bracket Bolt
-
97
11
Valve Rocker Arm Cover Bolt - Lower
-
89
10
Valve Rocker Arm Cover Bolt - Upper
-
71þlbþin (Two
Times)
8þN·m (Two
Times)
Water Outlet Bolts
18
-
25
Water Pump Bolt
18
-
25
Water Pump Inlet Pipe Bolts
18
-
25
TORQUE SPECIFICATIONS
Item
Lb-Ft.
Lb-In.
N•m
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Engine 2-53
5745804
Displacement
• 6.6þLiter
• 402þcuþin
Bore
• 103þmm
• 4.0551þin
Stroke
• 99þmm
• 3.8976þin
Compression Ratio
• 17.5:1
Engine Compression Test - Minimum
• 2069þKPa
• 300þpsi
Idle Speed
• 680þRPM
Firing Order
• 1-2-7-8-4-5-6-3
Block
Cylinder Bore Diameter - Service Limits
• 103.11þmm
• 4.0594þin
Cylinder Bore Diameter - Production Value
• 103.0-103.014þmm
• 4.0551-4.0557þin
Cylinder Bore Out-of-Round - Production Value
• 0.015þmm
• 0.0006þin
Cylinder Bore Taper - Production Value
• 0.015þmm
• 0.0006þin
Camshaft
Camshaft Bearing Inside Diameter - Service Limit
• 61.07þmm
• 2.4043þin
Camshaft Bearing Inside Diameter - Production Value
• 61.00-61.03þmm
• 2.4016-2.4028þin
10-1-08