2004 Duramax 6.6 Liter Diesel Engine Assembly Torque Specifications

[RXTII]

Can anyone help me with this engine main and Rod bearings tightening torque specifications, as well as the cylinder heads torque specifications? I am replacing new piston rings and Rod bearings but I do not have this torquing information.

thanks in advance

[OC_DMAX]

Someone may want to spot check this list, copied from my LB7 manual (2002 vintage - things change). Should be correct or close for 2004, but no guarantees.

So you are doing this work without a manual??


Part Application
Metric
English


A/C Compressor Bolt
50 N·m
37 lb ft
Air Cleaner Outlet Duct Clamp
8 N·m
71 lb in
Air Conditioning Compressor/Power Steering Pump Bracket Bolt
46 N·m
34 lb ft
Air Inlet Tube Nut
25 N·m
18 lb ft
Battery Cable Bracket Bolt
12 N·m
106 lb in
Battery Cable Bracket Nut
8 N·m
71 lb in
Bypass Pipe Bolt
25 N·m
18 lb ft
Camshaft Gear Bolt
234 N·m
173 lb ft
Camshaft Position Sensor Bolt
10 N·m
89 lb in
Camshaft Position Sensor Exciter Ring Bolt
9 N·m
80 lb in
Camshaft Thrust Plate Bolt
22 N·m
16 lb ft
Charged Air Cooler Bolt
21 N·m
15 lb ft
Charged Air Cooler Clamp
8 N·m
71 lb in
Connecting Rod Cap Bolt - Angular Tightening Method
1st Step 64 N·m
1st Step 47 lb ft
2nd Step 30 degrees
2nd Step 30 degrees
3rd Step 30 degrees
3rd Step 30 degrees
Coolant Pipe Bolt and Nut
25 N·m
18 lb ft
Coolant Tube to Water Pump Nut
25 N·m
18 lb ft
Cooling Fan Pulley
41 N·m
30 lb ft
Crankshaft Balancer Bolt
1st Step 100 N·m
1st Step 74 lb ft
2nd Step 105 degrees
2nd Step 105 degrees
Crankshaft Bearing Cap Bolt
1st Step 98 N·m
1st Step 72 lb ft
2nd Step 132 N·m
2nd Step 97 lb ft
3rd Step 30 degrees
3rd Step 30 degrees
Crankshaft Bearing Cap Bolt - Angular Tightening Method
1st Step 100 N·m
1st Step 74 lb ft
2nd Step 90 degrees
2nd Step 90 degrees
Crankshaft Bearing Cap Side Bolt
70 N·m
52 lb ft
Crankshaft Position Sensor Bolt
10 N·m
89 lb in
Crankshaft Position Sensor Spacer Bolt
10 N·m
89 lb in
Crossmember Bolt
100 N·m
74 lb ft
Cylinder Head M12 Bolt - Angular Tightening Method
1st Step 50 N·m
1st Step 37 lb ft
2nd Step 80 N·m
2nd Step 59 lb ft
3rd Step 60 degrees
4th Step 60 degrees
Cylinder Head M8 Bolt
25 N·m
18 lb ft
Drive Belt Tensioner Pulley Bolt
50 N·m
37 lb ft
EGR Bracket
25 N·m
18 lb ft
EGR Bracket Bolt
25 N·m
18 lb ft
EGR Bracket to Cooler Bolt
25 N·m
18 lb ft
Electrical Harness Bracket Bolt
10 N·m
89 lb in
Engine Block Coolant Plug
18 N·m
13 lb ft
Engine Block Ground Bolt
34 N·m
25 lb ft
Engine Mount Through Bolt to Frame
75 N·m
55 lb ft
Engine Mount to Block Bolts
58 N·m
43 lb ft
Engine Mount to Frame Bolt
65 N·m
48 lb ft
Engine Shield Bolt
20 N·m
15 lb ft
Exhaust Heat Shield Nut
10 N·m
89 lb in
Exhaust Manifold Bolt/Nut
38 N·m
28 lb ft
Exhaust Manifold Heat Shield Bolts
10 N·m
89 lb in
Exhaust Outlet Clamp
15 N·m
11 lb ft
Exhaust Outlet Heat Shield Bolts
10 N·m
89 lb in
Exhaust Pipe Bracket Nut
53 N·m
39 lb ft
Exhaust Pipe Clamp
53 N·m
39 lb ft
Exhaust Pipe Heat Shield Bolts
10 N·m
89 lb in
Fan Pulley Bracket Bolt
50 N·m
37 lb ft
Flywheel Bolt - Angular Tightening Method
1st Step 79 N·m
1st Step 58 lb ft
2nd Step 60 degrees
2nd Step 60 degrees
3rd Step 60 degrees
3rd Step 60 degrees
Flywheel Housing Bolt
80 N·m
60 lb ft
Flywheel Housing to Upper Oil Pan Bolt
50 N·m
37 lb ft
Front Engine Cover Bolt
25 N·m
18 lb ft
Fuel Filter Bracket Bolt
30 N·m
22 lb ft
Fuel Injection Control Module Bolt
20 N·m
15 lb ft
Fuel Injection Control Module Bracket Bolt
21 N·m
15 lb ft
Fuel Injection Control Module Connector Bolt
10 N·m
89 lb in
Fuel Injection Control Module Connector Bracket Bolt
21 N·m
15 lb ft
Fuel Injection Control Module Cooler Eye Bolt
27 N·m
20 lb ft
Fuel Injection Pipe Nut
41 N·m
30 lb ft
Fuel Injector Bracket Bolt
30 N·m
22 lb ft
Fuel Inlet Pipe Bracket Bolt
21 N·m
15 lb ft
Fuel Injection Pump Assembly to Cylinder Block Bolt
25 N·m
18 lb ft
Fuel Injection Pump to Bracket Bolt
28 N·m
20 lb ft
Fuel Injection Pump Drive Gear Nut
70 N·m
52 lb ft
Fuel Line Bracket Nut
21 N·m
15 lb ft
Fuel Pressure Relief Valve
100 N·m
74 lb ft
Fuel Temperature Sensor
22 N·m
16 lb ft
Fuel Pipes Bracket Bolt
25 N·m
18 lb ft
Fuel Rail Assembly Bolt
25 N·m
18 lb ft
Fuel Rail Balance Pipe Bolt
21 N·m
15 lb ft
Generator Bracket Bolt and Nut
50 N·m
37 lb ft
Generator Positive Cable Nut
9 N·m
80 lb in
Glow Plug
18 N·m
13 lb ft
Glow Plug Controller Bolt
10 N·m
89 lb in
Glow Plug Harness Bracket Bolt
10 N·m
89 lb in
Glow Plug Nut
2 N·m
18 lb in
Glow Plug Power Feed Nut
15 N·m
11 lb ft
Glow Plug Relay Assembly Bolt
10 N·m
89 lb in
Heater Outlet Pipe Bolt
25 N·m
18 lb ft
Heater Pipe Bolt
25 N·m
18 lb ft
Hood Hinge Bolt
25 N·m
18 lb ft
Idle Pulley Bolt
50 N·m
37 lb ft
Injector Bracket Bolt
23 N·m
16 lb ft
Intake Manifold Bolts/Nuts
25 N·m
18 lb ft
Oil Cooler Adapter Bolts
25 N·m
18 lb ft
Oil Cooler Adapter Nuts
25 N·m
18 lb ft
Oil Cooler Assembly Bolts
25 N·m
18 lb ft
Oil Cooler Adapter Stud
10 N·m
89 lb in
Oil Drain Plug
84 N·m
62 lb ft
Oil Fill Tube Bolt
25 N·m
18 lb ft
Oil Filter
24 N·m
18 lb ft
Oil Gallery Plugs
53 N·m
39 lb ft
Oil Level Indicator Tube Bolt
21 N·m
15 lb ft
Oil Level Sensor Bolt
10 N·m
89 lb in
Oil Level Sensor Harness Bolt
40 N·m
29 lb ft
Oil Pan Bolts/Nuts - Lower
10 N·m
89 lb in
Oil Pan Bolt - Upper
20 N·m
15 lb ft
Oil Pan Skid Plate Bolt
20 N·m
15 lb ft
Oil Pressure Sensor Unit
49 N·m
36 lb ft
Oil Pressure Relief Valve
39 N·m
29 lb ft
Oil Pump Bolt
21 N·m
15 lb ft
Oil Pump Driven Gear Nut
100 N·m
74 lb ft
Oil Pump Gear Cover Bolt
21 N·m
15 lb ft
Oil Pump Pipe and Screen Assembly Bolts and Nuts
25 N·m
18 lb ft
Piston Cooling Nozzle Eye Bolt
21 N·m
15 lb ft
Positive Cable Junction Block Bracket to Power Steering Pump Bolt
9 N·m
80 lb in
Positive Crankcase Ventilation Cover Screws
4 N·m
35 lb in
Positive Crankcase Ventilation Oil Separator Bracket Nut
25 N·m
18 lb ft
Power Steering Pump Bracket Bolt
50 N·m
37 lb ft
Power Steering Pump Bolt
50 N·m
37 lb ft
Rocker Arm Shaft Bracket Bolt
41 N·m
30 lb ft
Starter Motor Bolt
78 N·m
58 lb ft
Transmission Fill Tube Nut
18 N·m
13 lb ft
Thermostat Housing Bolts/Nuts
25 N·m
18 lb ft
Thermostat Cover Bolt
25 N·m
18 lb ft
Torque Converter Bolt
60 N·m
44 lb ft
Transmission Oil Cooler Clip Nut
9 N·m
80 lb in
Turbocharger Bolt
108 N·m
80 lb ft
Turbocharger Boost Sensor Bolt
10 N·m
89 lb in
Turbocharger Coolant Outlet Pipe Bracket Nut
10 N·m
89 lb in
Turbocharger Heat Shield Bolts
10 N·m
89 lb in
Turbocharger Oil Return Pipe Stud
10 N·m
89 lb in
Turbocharger Oil Supply Hose Eye Bolt
26 N·m
19 lb ft
Turbocharger Oil Return Pipe Bolts/Nuts
25 N·m
18 lb ft
Upper Oil Pan to Flywheel Housing Screws
20 N·m
15 lb ft
Valve Adjusting Nut
22 N·m
16 lb ft
Valve Lifter Holdown Bracket Bolt
11 N·m
97 lb in
Valve Rocker Arm Cover Bolt - Lower
10 N·m
89 lb in
Valve Rocker Arm Cover Bolt - Upper
8 N·m (Two Times)
71 lb in (Two Times)
Water Outlet Bolts
25 N·m
18 lb ft
Water Pump Bolt
25 N·m
18 lb ft
Water Pump Inlet Pipe Bolts
25 N·m
18 lb ft

[More Power]

Thanks OC,

I can't imagine doing this without the manual...

Jim

[RXTII]

thanks for your help, I really appreciate it, one more question, I already have the engine assembled but now I need the intake and exhaust valves calibrations, can anyone help me with this? remember it is a 2004 6.6 LITER Duramax engine.......

[Duramaster]

Why the re-reing? :confused:

[More Power]

Why the re-reing? :confused:

This was an older thread, but I recently spent time inside a 140K mile Duramax, and saw that the crosshatching on the cylinder walls looked to be untouched by ring wear. The upper portion of the cast iron cylinder walls were induction hardened at the factory. You can see the pattern produced on the cylinder wall surfaces from that process. Now, if the rings have a similar wear resistance, the engine should last... a long, long, long time. I've discussed two trucks here in TheDieselPage.com that each accumulated 750K+ miles without any serious engine work.
Here's one of those stories: https://www.thedieselpage.com/duramax/750kduramaxc.htm

By the way... the intake/exhaust valve lash specifications call for .012" clearance each. Easy to do, just a bit tedious.