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Thread: 2004 Duramax 6.6 Liter Diesel Engine Assembly Torque Specifications

  1. #1
    Join Date
    Dec 2007
    Location
    HONDURAS
    Posts
    7

    Thumbs up 2004 Duramax 6.6 Liter Diesel Engine Assembly Torque Specifications

    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

  2. #2
    Join Date
    Dec 2001
    Location
    Yorba Linda, California
    Posts
    496

    Default

    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
    '02 Chev 2500HD EC/SB 4x4 D/A

  3. #3
    Join Date
    Feb 2000
    Location
    Montana
    Posts
    11,118

    Default

    Thanks OC,

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

    Jim

  4. #4
    Join Date
    Dec 2007
    Location
    HONDURAS
    Posts
    7

    Thumbs up

    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.......

  5. #5
    Join Date
    Mar 2007
    Location
    Pacific Northwest
    Posts
    740

    Question

    Why the re-reing?
    1998 Chevy k-2500 454 147,000 miles and climbing!

    1993 Pontiac G/A Big Block 3.3 Liter 140,000 miles and still going too!

  6. #6
    Join Date
    Feb 2000
    Location
    Montana
    Posts
    11,118

    Smile

    Quote Originally Posted by Duramaster View Post
    Why the re-reing?
    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.

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