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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 771 (ENGINE MECHANICAL - 3.1L (UNIT REPAIR))SPECIFICATIONS
2004 Oldsmobile Bravada AWD

Section 771 (Engine Mechanical - 3.1L (Unit Repair)): Specifications

2004 Oldsmobile Bravada AWDSECTION Specifications
WARNING: This page is about a different car, the 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: See TSB For Revised Lower Intake Torque
FASTENER TIGHTENING SPECIFICATIONS

Application Specification
Metric English
Accelerator Control Cable Bracket Bolt/Nut 13 N.m 115 lb in
Air Injection Check Valve - with NC1 California Emissions 20 N.m 15 lb ft
Air Injection Check Valve Front Bracket Bolt and Nut - with NC1 California Emissions 25 N.m 18 lb ft
Air Injection Check Valve Nut - with NC1 California Emissions 10 N.m 89 lb in
Air Injection Check Valve Pipe Adapter - with NC1 California Emissions 30 N.m 22 lb ft
Air Injection Check Valve Rear Bracket Nuts - with NC1 California Emissions 25 N.m 18 lb ft
Air Injection Solenoid Bolt - with NC1 California Emissions 10 N.m 89 lb in
Camshaft Position Sensor Bolt 10 N.m 89 lb in
Camshaft Sprocket Bolt 140 N.m 103 lb ft
Camshaft Thrust Plate Screw 10 N.m 89 lb in
Connecting Rod Bearing Cap Nut
First Pass 20 N.m 15 lb ft
Final Pass 75 degrees
Coolant Drain Plug 19 N.m 14 lb ft
Coolant Temperature Sensor 23 N.m 17 lb ft
Crankshaft Balancer Bolt
First Pass 70 N.m 52 lb ft
Final Pass 72 degrees
Crankshaft Main Bearing Cap Bolt/Stud
First Pass 50 N.m 37 lb ft
Final Pass 77 degrees
Crankshaft Oil Deflector Nut 25 N.m 18 lb ft
Crankshaft Position Sensor Bolt - Front Cover 10 N.m 89 lb in
Crankshaft Position Sensor Stud - Side of Engine Block 11 N.m 98 lb in
Crankshaft Position Sensor Wiring Bracket Bolt 40 N.m 30 lb ft
Cylinder Head Bolt (NEW Bolts)
First Pass 60 N.m 44 lb ft
Final Pass 95 degrees
Drive Belt Shield Bolt 10 N.m 89 lb in
Drive Belt Tensioner Bolt 50 N.m 37 lb ft
EGR Valve Adapter Pipe to Exhaust Manifold Nut 25 N.m 18 lb ft
EGR Valve Pipe to EGR Valve Bolt 25 N.m 18 lb ft
EGR Valve to Upper Intake Manifold Bolt 30 N.m 22 lb ft
Engine Front Cover Bolt - Large 55 N.m 41 lb ft
Engine Front Cover Bolt - Medium 55 N.m 41 lb ft
Engine Front Cover Bolt - Small 27 N.m 20 lb ft
Engine Mount Bracket Bolt 58 N.m 43 lb ft
Engine Mount Lower Nut 43 N.m 32 lb ft
Engine Mount Strut and Lift Bracket Bolt - Engine Left Rear 70 N.m 52 lb ft
Engine Mount Strut Bolt/Nut 48 N.m 35 lb ft
Engine Mount Strut Bracket Bolt - Upper Radiator Support 28 N.m 21 lb ft
Engine Mount Strut and Generator Bracket Bolt 50 N.m 37 lb ft
Engine Mount Upper Nut 47 N.m 35 lb ft
Engine Oil Pressure Indicator Switch 16 N.m 12 lb ft
Engine Wiring Harness Bracket Bolt 13 N.m 115 lb in
Exhaust Manifold Nut 16 N.m 12 lb ft
Exhaust Manifold Stud 18 N.m 13 lb ft
Flywheel Bolt 71 N.m 52 lb ft
Fuel Feed and Return Pipe Clip Nut 25 N.m 18 lb ft
Fuel Feed and Return Pipe Clip Stud 50 N.m 37 lb ft
Fuel Feed Pipe to Fuel Injector Rail Nut 17 N.m 13 lb ft
Fuel Injector Rail Bolt 10 N.m 89 lb in
Fuel Pipe Bracket Bolt/Stud 50 N.m 37 lb ft
Fuel Pipe Clip Bolt 8 N.m 71 lb in
Fuel Return Pipe to Fuel Injector Rail Nut 17 N.m 13 lb ft
Heated Oxygen Sensor 42 N.m 31 lb ft
Heater Inlet Pipe Nut 25 N.m 18 lb ft
Heater Inlet Pipe Stud 50 N.m 37 lb ft
Ignition Coil Bracket Bolt/Nut/Stud 25 N.m 18 lb ft
Intake Manifold Coolant Pipe Bolt 10 N.m 89 lb in
Knock Sensor 19 N.m 14 lb ft
Lower Intake Manifold Bolt
First Pass (Virtical Bolts) 7 N.m 62 lb in
First Pass (Diagonal Bolts) 7 N.m 62 lb in
Final Pass (Vertical Bolts) 13 N.m 115 lb in
Final Pass (Diagonal Bolts) 25 N.m 18 lb ft
MAP Sensor Bolt 5 N.m 44 lb in
Oil Cooler Connector 50 N.m 37 lb ft
Oil Cooler Hose Fitting 19 N.m 14 lb ft
Oil Cooler Pipe Bracket Bolt 25 N.m 18 lb ft
Oil Filter 13 N.m 115 lb in
Oil Filter Bypass Hole Plug 19 N.m 14 lb ft
Oil Filter Fitting 39 N.m 29 lb ft
Oil Gallery Plug - 1/4 inch 19 N.m 14 lb ft
Oil Gallery Plug - 3/8 inch 33 N.m 24 lb ft
Oil Level Indicator Tube Bolt 25 N.m 18 lb ft
Oil Level Sensor Bolt 10 N.m 89 lb in
Oil Pan Bolt 25 N.m 18 lb ft
Oil Pan Drain Plug 25 N.m 18 lb ft
Oil Pan Side Bolt 50 N.m 37 lb ft
Oil Pump Cover Bolt 10 N.m 89 lb in
Oil Pump Drive Clamp Bolt 36 N.m 27 lb ft
Oil Pump Mounting Bolt 41 N.m 30 lb ft
Spark Plug - New Cylinder Head 27 N.m 20 lb ft
Spark Plug - After Initial Installation 15 N.m 13 lb ft
Thermostat Bypass Pipe to Engine Front Cover Bolt 12 N.m 106 lb in
Thermostat Bypass Pipe to Throttle Body Nut 25 N.m 18 lb ft
Throttle Body Bolt/Stud 25 N.m 18 lb ft
Timing Chain Dampener Bolt 21 N.m 15 lb ft
Upper Intake Manifold Bolt/Stud 25 N.m 18 lb ft
Valve Lifter Guide Bolt 10 N.m 89 lb in
Valve Rocker Arm Bolt
First Pass 19 N.m 14 lb ft
Final Pass 30 degrees
Valve Rocker Arm Cover Bolt 10 N.m 89 lb in
Water Outlet Bolt 25 N.m 18 lb ft
Water Pump Bolt 10 N.m 89 lb in
Water Pump Pulley Bolt 25 N.m 18 lb ft
ENGINE MECHANICAL SPECIFICATIONS

Application Specification
Metric English
General Data
  Engine Type 60° V-6
  Displacement 3.1L 191 cu in
RPO - VIN Code LG8 - J
  Bore 89 mm 3.50 in
  Stroke 84 mm 3.31 in
  Compression Ratio 9.6:1
  Firing Order 1-2-3-4-5-6
  Oil Pressure 103 kPa 15 psi @ 1100 RPM
Cylinder Bore
  Diameter 89.016-89.034 mm 3.5046-3.5053 in
  Out Of Round Maximum 0.014 mm 0.0005 in
  Taper - Thrust Side Maximum 0.020 mm 0.0008 in
Piston
  Diameter-Gaged on the skirt 12 mm (0.47 in) below the centerline of the piston pin bore 88.981-89.009 mm 3.5029-3.5040 in
  Clearance 0.07-0.053 mm 0.0013-0.0027 in
  Pin Bore 23.006-23.013 mm 0.9057-0.9060 in
Piston Ring
  Top Groove Side Clearance 0.04-0.086 mm 0.002-0.0033 in
  Second Groove Side Clearance 0.04-0.09 mm 0.002-0.0035 in
  Top Ring Gap 0.15-0.36 mm 0.006-0.014 in
  Second Ring Gap 0.5-0.71 mm 0.0197-0.0280 in
  Oil Ring Groove Clearance 0.046-0.201 mm 0.008 in
  Gap with segment at 89.0 mm (3.50 in) 0.25-1.27 mm 0.0098-0.05 in
Piston Pin
  Diameter 22.9915-22.9964 mm 0.9052-0.9054 in
  Clearance In Piston 0.0096-0.0215 mm 0.0004-0.0008 in
  Fit In Rod (-0.0469)-(0.017) mm (press fit) 0.0006-0.0018 in
Crankshaft
  Main Journal Diameter 67.239-67.257 mm 2.6473-2.6483 in
  Main Journal Taper 0.005 mm 0.0002 in
  Out Of Round 0.005 mm 0.0002 in
  Flange Runout-Max 0.04 mm 0.0016 in
  Cylinder Block Main Bearing Bore Diameter 72.155-72.168 mm 2.8407-2.8412 in
  Crankshaft Main Bearing Inside Diameter 67.289-67.316 mm 2.6492-2.6502 in
  Main Bearing Clearance - except number 3 0.019-0.064 mm 0.0008-0.0025 in
  Main Thrust Bearing Clearance - number 3 0.032-0.077 mm 0.0012-0.0030 in
  Crankshaft End Play 0.060-0.210 mm 0.0024-0.0083 in
  Crankshaft Flange Runout-Max 0.04 mm 0.0016 in
Connecting Rod
  Connecting Rod Bearing Journal Diameter 50.768-50.784 mm 1.9987-1.9994 in
  Connecting Rod Bearing Journal Taper 0.005 mm 0.0002 in
  Connecting Rod Bearing Journal Out Of Round 0.005 mm 0.0002 in
  Connecting Rod Bearing Bore Diameter 53.962-53.984 mm 2.124-2.125 in
  Connecting Rod Inside Bearing Diameter 50.812-50.850 mm 2.000-2.002 in
  Connecting Rod Bearing Journal Clearance 0.018-0.062 mm 0.0007-0.0024 in
  Connecting Rod Side Clearance 0.18-0.44 mm 0.007-0.017 in
Camshaft
  Lobe Lift - Intake and Exhaust 6.9263 mm 0.2727 in
  Journal Diameter 47.45-47.48 mm 1.868-1.869 in
  Camshaft Bearing Bore Diameter-Front and Rear 51.03-51.08 mm 2.009-2.011 in
  Camshaft Bearing Bore Diameter-Middle #2 and #3 50.77-50.82 mm 1.999-2.001 in
  Camshaft Bearing Inside Diameter 47.523-47.549 mm 1.871-1.872 in
  Journal Clearance 0.026-0.101 mm 0.001-0.0039 in
  Journal Runout-Max 0.025 mm 0.001 in
Valve System
  Roller Lifter Hydraulic
  Rocker Arm Ratio 1.60:1
  Valve Face Angle 45°
  Seat Angle 46°
  Valve Seat Runout 0.025 mm 0.001 in
  Seat Width-Intake 1.55-1.80 mm 0.061-0.071 in
  Seat Width-Exhaust 1.70-2.0 mm 0.067-0.079 in
  Valve Margin - Minimum Intake 2.10 mm 0.083 in
  Valve Margin - Minimum Exhaust 2.70 mm 0.106 in
  Valve Stem Clearance 0.026-0.068 mm 0.0010-0.0027 in
Valve Spring
  Valve Springs Free Length 48.5 mm 1.89 in
  Valve Springs Load - Closed 320 N @ 43.2 mm 75 lb @ 1.701 in
  Valve Springs Load - Open 1036 N @ 32 mm 230 lb @ 1.260 in
  Installed Height Intake-Exhaust 43.2 mm 1.701 in
  Approx. # or coils 6.55
Oil Pump
  Gear Lash 0.094-0.195 mm 0.0037-0.0077 in
  Gear Pocket Depth 30.52-30.58 mm 1.202-1.204 in
  Gear Pocket Diameter 38.176-38.226 mm 1.503-1.505 in
Oil Pump Gear
  Length 30.45-30.48 mm 1.199-1.200 in
  Diameter 38.05-38.10 mm 1.498-1.500 in
  Side Clearance 0.038-0.088 mm 0.001-0.003 in
  End Clearance 0.040-0.125 mm 0.002-0.005 in
  Valve to Bore Clearance 0.038-0.089 mm 0.0015-0.0035 in
Fig 1: Sealers, Adhesives, and Lubricants
G01811015Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.