Buick 3800 Engine Torque Specifications


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GM - Buick 3800 II Torque Chart

buick 3800 engine torque specifications

View the Buick 3800 Engine Torque Specifications for repairs and rebuilds. Every torque specification should be in this table, however if there is one missing, please Contact Me and I will get you the spec and add it to the table..

Location

Year

Ft-Lbs

In-Lbs

N-m

Notes

Balance Shaft Sprocket To Balance Shaft

All

16

192

21.69

Tighten Additional 70 Degrees; Torque Angle Gauge Required

Bell Housing Cover To Bell Housing

All

5

60

6.78

Torque Converter Cover Bolts

Bracket/Stay To Cylinder Head

All

36

432

48.81

Alternator Bracket to Cylinder Head

Bracket/Stay To Engine Block

All

70

840

94.91

FRONT Engine Mount Bracket to Engine Block

Bracket/Stay To Intake Manifold

All

2.92

35

3.96

Throttle Cable Bracket

Bracket/Stay To AC Compressor/Front

All

74

888

100.33

AC Compressor Mounting Bolts - Front Nuts

Bracket/Stay To  AC Alternator

All

36

432

48.81

Alternator Bracket to Alternator Thru Bolt

Bracket/Stay To  AC Compressor/Lower

All

59

708

79.99

AC Compressor Mounting Bolts - Lower Bolts

Bracket/Stay To  AC Compressor/Rear

All

23

276

31.18

AC Compressor Mounting Bolts - Rear Bracket

Bracket/Stay To  AC Compressor/Upper

All

36

432

48.81

AC Compressor Mounting Bolts - Upper Bolt

Camshaft Position Sensor To Timing Chain/Belt Cover

All

5

60

6.78

Camshaft Position Sensor

Connecting Rod To Crankshaft

All

20

240

27.12

Rod Caps - 2 Steps: 20FtLbs; +50deg

Crankshaft Position Sensor To Timing Chain/Belt Cover

All

20

240

27.12

Crankshaft Position Sensor

Crankshaft Position Sensor To Timing Chain/Belt Cover

All

3.33

40

4.52

Crankshaft Sensor Clamp Bolt

Crankshaft To Engine Block

All

30

360

40.67

Main Bearing CAP - 2 Steps: 30FtLbs; +110deg

Crankshaft To Engine Block/Side

All

11

132

14.91

Main Bearing SIDE - 2 Steps: 11FtLbs; +45deg

Cylinder Head To Engine Block

1995-1998

37

444

50.17

3 Steps: 37FtLbs; +130deg; +30deg(Center 4 Only)

Cylinder Head To Engine Block

1999-2005

37

444

50.17

2 Steps: 37FtLbs; +120deg

Drain Plug To Engine Block

All

13

156

17.63

Engine Block/Coolant Plug

Drain Plug To Oil Pan

All

18

216

24.4

Oil Drain Plug

Drive Belt Tensioner To Engine Block

All

37

444

50.17

Accessory Drive Belt Tensioner

EGR Pipe To EGR Valve

All

22

264

29.83

EGR Pipe to EGR Valve

EGR Pipe To Exhaust Manifold

All

21

252

28.47

EGR Pipe to Exhaust Manifold

EGR Valve Adapter To Intake Manifold

All

37

444

50.17

EGR Valve Adapter

EGR Valve To EGR Valve Adapter

All

22

264

29.83

EGR Valve to Intake Manifold Adapter

Engine Block To Transaxle

All

55

660

74.57

Engine to Transaxle Bolts

Engine Mount To Bracket/Stay

All

32

384

43.39

FRONT Engine Mount to Engine Bracket Nuts

Engine Mount To Frame

All

50

600

67.79

FRONT Engine Mount to Frame Nuts

Engine Temp Sensor To Intake Manifold

All

15

180

20.34

Coolant Temp Sensor

Exhaust Manifold To Cylinder Head

1995-1998

8.83

106

11.98

Exhaust Manifold to Cylinder Head

Exhaust Manifold To Cylinder Head

1999-2005

11

132

14.92

Exhaust Manifold to Cylinder Head - FRONT 2

Exhaust Manifold To Cylinder Head

1999-2005

13

156

17.63

Exhaust Manifold to Cylinder Head - NOT FRONT 2

Exhaust Pipe To Exhaust Manifold

All

18

216

24.4

Exhaust Pipe to Exhaust Manifold Nuts

Exhaust Pipe To Exhaust System

All

15

180

20.34

Exhaust Crossover Bolt/Studs

Flywheel To Crankshaft

All

60

720

81.4


Fuel Pressure Regulator To Bracket/Stay

All

6.67

80

9.04

Fuel Pressure Regulator Mounting Screw

Fuel Pressure Regulator To Fuel Line

All

13

156

17.63

Fuel Pressure Regulator to Fuel Pipe Nut

Fuel Rail To Intake Manifold

All

7.42

89

10.06

Fuel Rail Mounting Bolts

Idle Air Control Valve To Throttle Body

All

2.25

27

3.05

Idle Air Control Valve to Throttle Body

Intake Manifold Plenum To Intake Manifold

All

7.42

89

10.06

Intake Manifold (Upper) to Lower Manifold

Intake Manifold To Cylinder Head

All

11

132

14.92

Intake Manifold to Cylinder Head Bolts/Nuts

Knock Sensor To Cylinder Head

All

14

168

18.98

Knock Sensor

Oil Dip Stick To Engine Block

All

14

168

18.98

Oil Dip Stick Tube

Oil Filter Adapter To Timing Chain/Belt Cover

1995-1997

22

264

29.83

Oil Filter Adapter to Timing Chain Cover Bolts

Oil Filter Adapter To Timing Chain/Belt Cover

1998-2005

11

132

14.92

Oil Filter Adapter - 2 Steps: 11FtLbs; +50deg

Oil Pan To Engine Block

All

10.42

125

14.13

Oil Pan Bolts

Oil Pickup Tube To Engine Block

All

11

132

14.92

Oil Pick Up Tube and Screen to Engine Block

Oil Pump Cover To Timing Chain/Belt Cover

All

8.17

98

11.07

Use T-30 Torx Driver

Oil Seal Retainer To Engine Block

All

18

216

24.4

Crankshaft Rear Oil Seal Housing Bolts

Oxygen Sensor (Lambda) To Exhaust Pipe

All

31

372

42.03

Oxygen Sensor

Plug To Engine Block

All

22

264

29.83

Oil Gallery Plugs

Pulley To Water Pump

All

9.67

116

13.11

Water Pump Pulley Bolts

Rocker Arm To Cylinder Head

All

11

132

14.91

Rocker Arm Pivot Bolts - 2 Steps: 11FtLbs; +90deg

Spark Plug To Cylinder Head

All

15

180

20.34

Spark Plug

Starter To Transaxle

All

32

384

43.39

Starter Motor

Supercharger To Intake Manifold

All

17

204

23.05

Supercharger to Lower Intake Manifold

Throttle Body To Intake Manifold

All

18

216

24.4

Throttle Body Bolts/Nuts

Thrust Plate To Engine Block

All

22

264

29.83

Balance Shaft Retainer

Timing Chain Cover To Engine Block

1995-1998

11

132

14.92

2 Steps: 11FtLbs; +40deg

Timing Chain Cover To Engine Block

1999-2005

15

180

20.34

2 Steps: 15FtLbs; +40deg

Timing Chain Sprocket To Camshaft

All

74

888

100.33

Camshaft Sprocket - 2 Steps: 74FtLbs; +90deg

Timing Chain Tensioner To Engine Block

All

16

192

21.69

Timing Chain Damper Bolt

Torque Converter To Flexplate/Driveplate

All

46

552

62.37

Torque Converter to Flexplate

Torque Strut To Bracket/Stay

All

37

444

50.17

Engine Torque Strut Mount Thru Bolts

Valve Cover To Cylinder Head

All

7.42

89

10.06

Valve Cover Bolts

Valve Lifter Guide To Engine Block

All

22

264

29.83

Valve Lifter Guide Bolts (4)

Vibration Damper/Hub To Crankshaft

1995-1998

111

1332

150.5

Modular OHC

Vibration Damper/Hub To Crankshaft

1999-2005

111

1332

150.5

Crankshaft Balancer - 2 Steps: 111FtLbs; +114deg

Water Adapter/Connector To  IntakeManifold

All

11

132

14.91

Heater Hose Adapter to Intake Manifold

Water Pump To Engine Block

All

15

180

20.34

LONG Bolts - 2 Steps: 15FtLbs; +40deg

Water Pump To Engine Block

All

11

132

14.92

SHORT Bolts - 2 Steps: 11FtLbs; +80deg

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