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3.4L (DOHC) Specifications

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  • 3.4L (DOHC) Specifications

    Application

    Millimeters

    Inches

    General Data
    Engine Type

    --

    60 V-6

    Displacement

    --

    204*Cu*In

    Liter (VIN)

    --

    3.4 (X)

    RPO

    --

    LQ1

    Bore

    92

    3.622

    Stroke

    84

    3.307

    Deck Height

    224

    8.818

    Compression Ratio

    --

    9.50:1

    Firing Order

    --

    1-2-3-4-5-6

    Oil Pressure @ Operating Temperature

    103*kPa @ 1100 RPM

    15*psi*min @ 1100 RPM

    Cylinder Bore
    Diameter

    92.020-92.038

    3.6228-3.6235

    Out Of Round Maximum

    0.010

    0.0004

    Taper -- Thrust Side Maximum

    0.013

    0.00051

    Center Distance

    111.76

    4.4

    Piston
    Diameter-gauged at skirt 10.44*mm (0.413*in) below centerline of piston pin bore

    91.985-92.000

    3.6215-3.6220

    Clearance

    0.020-0.052

    0.0008-0.0020

    Pin Bore

    23.003-23.010

    0.9056-0.9059

    Piston Ring
    Compression Groove Clearance 1st and 2nd

    0.033-0.079

    0.0013-0.0031

    Gap (at gauge diameter) 1st

    0.20-0.45

    0.008-0.018

    Gap (at gauge diameter) 2nd

    0.56-0.81

    0.022-0.032

    Oil Groove Clearance

    0.028-0.206

    0.0011-0.0081

    Gap (segment at gauge diameter)

    0.25-0.76

    0.0098-0.0299

    Tension 1st

    27.6*N

    6.2*lbs

    Tension 2nd

    19.8*N

    4.5*lbs

    Tension Oil

    31.2*N

    7.0*lbs

    Piston Pin
    Diameter

    22.9915-22.9964

    0.9052-0.9054

    Clearance

    0.0066-0.0185

    0.00026-0.00073

    Fit In Rod

    0.0165-0.0464

    0.0006-0.0018

    Crankshaft
    Main Journal Diameter-All

    67.239-67.257

    2.6472-2.6479

    Taper-Maximum

    0.005

    0.0002

    Out Of Round-Maximum

    0.005

    0.0002

    Cylinder Block Main Bearing Bore Diameter

    72.155-72.168

    2.8407-2.8412

    Crankshaft Main Bearing Inner Diameter

    67.289-67.316

    2.6492-2.6502

    Main Bearing Clearance

    0.019-0.064

    0.0008-0.0025

    Main Thrust Bearing Clearance

    0.032-0.077

    0.0013-0.0030

    Crankshaft End Play

    0.06-0.21

    0.002-0.008

    Crankpin
    Diameter

    50.768-50.784

    1.9987-1.9994

    Taper-Maximum

    0.005

    0.0002

    Out Of Round-Maximum

    0.005

    0.0002

    Rod Bearing Bore Diameter

    53.962-53.984

    2.124-2.125

    Rod Inner Bearing Diameter

    50.812-50.850

    2.000-2.002

    Rod Bearing Clearance

    0.018-0.062

    0.0007-0.0024

    Rod Side Clearance

    0.18-0.44

    0.0071-0.0173

    Camshaft
    Lobe Lift (Intake)

    9.398 @ 108 Crank ATDC

    0.370 @ 108 Crank ATDC

    Lobe Lift (Exhaust)

    9.389 @ 115 Crank BTDC

    0.370 @ 115 Crank BTDC

    Timing Reference Set Position with Camshaft Timing Flats in Clamped Position-Right Bank

    --

    TDC-1Piston Exhaust Stroke +/- 2 of Crankshaft

    Timing Reference Set Position with Camshaft Timing Flats in Clamped Position-Left Bank

    --

    TDC-4 Piston Exhaust Stroke +/- 2 of Crankshaft

    Journal Diameter

    54.973-55.001

    2.1643-2.1654

    Bore Inside Diameter

    55.050-55.075

    2.1673-2.1683

    Journal Clearance

    0.049-0.102

    0.0019-0.0040

    Valve System
    Lifter

    --

    Hydraulic

    Face Angle

    --

    45

    Seat Angle

    --

    46

    Seat Runout-Maximum

    0.075

    0.0030

    Seat Width Intake

    1.25-1.50

    0.0492-0.0591

    Exhaust

    1.60-1.90

    0.063-0.0748

    Valve Margin-Minimum

    0.75

    0.029

    Stem Clearance Intake

    0.028-0.066

    0.0011-0.0026

    Stem Clearance Exhaust

    0.046-0.084

    0.0018-0.0033

    Valve Spring
    Free Length

    42.04

    1.6551

    Load (Closed)-All

    289*N @ 35.56

    65*lb @ 1.400

    Load (Open)-All

    711*N @ 26.16

    160*lb @ 1.030

    Approximate Number of Active Coils

    --

    4

    Oil Pump
    Valve to Bore Clearance

    0.038-0.089

    0.0015-0.0035

    Gear Lash

    0.094-0.195

    0.0037-0.0077

    Gear Pocket Depth

    30.53-30.61

    1.202-1.205

    Diameter

    38.202-38.252

    1.504-1.506

    Gear Length

    30.45-30.48

    1.199-1.20

    Diameter

    38.05-38.10

    1.498-1.50

    Side Clearance

    0.08-0.10

    0.003-0.004

    End Clearance

    0.05-0.152

    0.002-0.006

    3.4L (DOHC) Fastener Tightening Specifications

    Application

    Nm

    Lb Ft

    Lb In

    Accelerator Control Cable Bracket Bolt

    10

    --

    89

    Accelerator Control Cable Bracket Nut

    10

    --

    89

    Camshaft Carrier Cover Bolt

    11

    --

    97

    Camshaft Carrier Thrust Plate Bolt

    10

    --

    89

    Camshaft Carrier Thrust Plate Cover Bolt

    10

    --

    89

    Camshaft Drive Belt Cover Bolt

    10

    --

    89

    Camshaft Drive Sprocket Bolt

    130

    96

    --

    Camshaft Housing Assembly Bolt

    27

    20

    --

    Camshaft Position Sensor Bolt

    50

    37

    --

    Connecting Rod Cap Nut

    20 +75

    15 +75

    --

    Coolant By-Pass Nut

    25

    18

    --

    Coolant Inlet Housing Bolt

    25

    18

    --

    Coolant Outlet Bolt

    27

    20

    --

    Coolant Pump Bolt

    11

    --

    97

    Coolant Pump Pulley Bolt

    25

    18

    --

    Crankshaft Balancer Mounting Bolt

    107

    79

    --

    Crankshaft Main Bearing Cap Bolt

    50+75

    37+75

    --

    Crankshaft Main Bearing Cap Stud

    50+75

    37+75

    --

    Crankshaft Oil Deflector Nut

    25

    18

    --

    Crankshaft Pulley-to-Crankshaft Damper Bolt

    60

    44

    --

    Crankshaft Position Sensor Bolt-Front of Engine

    8

    --

    71

    Crankshaft Position Sensor Bolt-Side of Engine

    8

    --

    71

    Crankshaft Position Sensor Harness Retaining Bracket Bolt

    5

    --

    45

    Cylinder Head Bolt

    60 +90

    44 +90

    --

    Drive Belt Tensioner Bolt

    50

    37

    --

    EGR Valve Adapter Brace Nut

    25

    18

    --

    EGR Valve Adapter Stud

    10

    --

    89

    EGR Tube Assembly

    25

    18

    --

    EGR Valve Assembly Nut

    25

    18

    --

    Electronic Ignition Control Module Assemble Bolt/Stud

    25

    18

    --

    Electronic Ignition Control Assembly Nut

    25

    18

    --

    Engine Block Coolant Drain Plug

    19

    14

    --

    Engine Block Oil Gallery Plug-Center Rear

    16

    12

    --

    Engine Block Oil Gallery Plug-Rear

    33

    24

    --

    Engine Block Oil Gallery Plug-Side of Block

    19

    14

    --

    Engine Coolant Temperature Sensor

    18

    13

    --

    Engine Motor Mount Frame Nut-Engine Left Side

    43

    32

    --

    Engine Motor Mount Bracket Nut-Engine Left Side

    43

    32

    --

    Engine Motor Mount Frame Nut-Engine Right Side

    43

    32

    --

    Engine Motor Mount Bracket Nut-Engine Right Side

    47

    35

    --

    Engine Motor Mount Bracket -Front of Block Bolt-Engine Left Side

    103

    76

    --

    Engine Motor Mount Bracket-Side of Block Bolts-Engine Left Side

    58

    43

    --

    Engine Motor Mount Bracket-Front of Block Bolts-Engine Right Side

    102

    75

    --

    Engine Motor Mount Bracket-Side of Block Bolt-Engine Right Side

    58

    43

    --

    Engine Motor Mount Bracket-Transaxle Bolts-Engine Right Side

    75

    55

    --

    Engine Mount Strut Bracket Bolt

    80

    59

    --

    Engine Oil Cooler Connector

    40

    30

    --

    Engine Oil Level Sensor

    22

    16

    --

    Evaporator Emission Canister Purge Solenoid Mounting Bracket Bolt

    10

    --

    89

    Exhaust Manifold Crossover Stud

    9

    --

    80

    Exhaust Manifold Nut

    13

    --

    116

    Exhaust Manifold Stud

    17

    13

    --

    Flywheel Bolt

    82

    60

    --

    Front Cover Coolant Drain Plug

    25

    18

    --

    Front Cover Bolts- Large

    47

    35

    --

    Front Cover Bolts - Small

    27

    20

    --

    Front Cover-to-Front Engine Lift Hook Bolt

    25

    18

    --

    Front Engine Lift Hook-to-Right Camshaft Carrier Bolt

    50

    37

    --

    Front Engine Lift Hook-to-Right Cylinder Head Bolt (Access through Front Cover)

    50

    37

    --

    Fuel Pipe Clip Bolt

    7

    --

    62

    Fuel Pipe Retainer Screw

    3

    --

    27

    Fuel Rail Assembly Bolt

    10

    --

    89

    Ignition Coil Bolt

    25

    18

    --

    Ignition Coil Nut

    25

    18

    --

    Intermediate Drive Shaft Retainer Screw

    10

    --

    89

    Intermediate Shaft Belt Sprocket Bolt

    130

    96

    --

    Knock Sensor

    21

    15

    --

    Lower Intake Manifold Mounting Bolt

    13

    --

    116

    Manifold Absolute Pressure Sensor Bracket Bolt

    8

    --

    71

    Oil Cooler Connector

    40

    30

    --

    Oil Cooler Hose Fitting

    25

    18

    --

    Oil Distribution Cover Bolt

    27

    20

    --

    Oil Filter

    16

    12

    --

    Oil Filter Fitting

    67

    49

    --

    Oil Level Indicator Bolt

    10

    --

    89

    Oil Pan Bolt-Except Rear

    11

    --

    97

    Oil Pan Bolt-Rear (2)

    27

    20

    --

    Oil Pan Drain Plug

    25

    18

    --

    Oil Pan Nut

    11

    --

    97

    Oil Pan Stud-to-Cylinder Block

    10

    --

    89

    Oil Pressure Switch

    32

    24

    --

    Oil Pump Cover Bolt

    10

    --

    89

    Oil Pump Drive Clamp Bolt

    36

    27

    --

    Oil Pump-to-Rear Main Cap Bolt

    54

    40

    --

    Power Brake Booster Vacuum Pipe Fitting

    18

    13

    --

    Rear Engine Mount Strut Bracket Bolt

    82

    60

    --

    Secondary Air Injection Pipe

    25

    18

    --

    Secondary Air Injection Pipe Nut-Left Side

    25

    18

    --

    Secondary Air Injection Pipe Support Bolt

    10

    --

    89

    Secondary Air Injection Pipe Nut-Right Side

    10

    --

    89

    Serpentine Drive belt tensioner bolt

    50

    37

    --

    Spark Plug

    20

    15

    --

    Throttle Body Adapter Bolt

    25

    18

    --

    Throttle Body Adapter Nut

    25

    18

    --

    Throttle Body Heater Outlet Hose Nipple

    18

    13

    --

    Throttle Body Stud

    4

    --

    36

    Throttle Body Bolt

    10

    --

    89

    Tie Bar Bracket

    26

    19

    --

    Timing Belt Cover Bolt

    10

    --

    89

    Timing Belt Idler Pulley Bolt

    50

    37

    --

    Timing Belt Tensioner Actuator Bracket Bolt

    50

    37

    --

    Timing Belt Tensioner Actuator Pulley Pivot Bolt

    50

    37

    --

    Timing Belt Tenisoner Actuator Side Plate Bolt

    27

    20

    --

    Timing Chain Tensioner Bolt

    27

    20

    --

    Engine Mount Strut and Engine Lift Bracket Bolt

    70

    52

    --

    Upper Intake Manifold Retaining Bolt

    26

    19

    --

    Water Inlet Fitting to Front Cover

    27

    20

    --

    Vacuum Source Manifold Mounting Bolt

    7

    --

    62

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