GM Service Manual Online
For 1990-2009 cars only

Fastener Tightening Specifications G

Application

Specification

Metric

English

Accessory/Engine Lift Bracket Nut and Bolts

50 N路m

37 lb ft

Bell Housing Bolts

40 N路m

30 lb ft

Camshaft Gear Bolt

170 N路m

125 lb ft

Camshaft Thrust Bearing Bolts

25 N路m

18 lb ft

Connecting Rod Cap Nuts

65 N路m

48 lb ft

Coolant Crossover Bolts/Studs

42 N路m

31 lb ft

Coolant Drain Plugs

25 N路m

18 lb ft

Crankshaft Balancer Bolt

270 N路m

200 lb ft

Crankshaft Bearing Cap Bolts

  • (Inner Bolts-12 mm) First Pass

75 N路m

55 lb ft

  • (Inner Bolts-12 mm) Second Pass

75 N路m

55 lb ft

  • (Inner Bolts-12 mm) Final Pass

+ 90 Degrees

  • (Outer Bolts-12 mm) First Pass

20 N路m

15 lb ft

  • (Outer Bolts-12 mm) Second Pass

20 N路m

15 lb ft

  • (Outer Bolts-12 mm) Final Pass

+ 90 Degrees

  • (Outer Bolts-10 mm)

40 N路m

30 lb ft

Crankshaft Pulley Bolts

50 N路m

37 lb ft

Crankshaft Sensor Bolt

23 N路m

17 lb ft

Cylinder Head Bolts

  • First Pass

25 N路m

20 lb ft

  • Second Pass

75 N路m

55 lb ft

  • Third Pass

75 N路m

55 lb ft

  • Final Pass

+ 90 Degrees

Exhaust Manifolds Bolts

35 N路m

26 lb ft

Exhaust Pipe Clamps

10 N路m

90 lb in

Flexplate or Flywheel Bolts

90 N路m

65 lb ft

Front Cover Bolts

45 N路m

33 lb ft

Fuel Injection Pump Gear Retaining Bolts

25 N路m

20 lb ft

Fuel Injection Pump Nuts

40 N路m

30 lb ft

Glow Plugs

17 N路m

13 lb ft

Injection Line Fittings

36 N路m

28 lb ft

Injection Nozzle

80 N路m

59 lb ft

Intake Center Manifold Bolts

23 N路m

17 lb ft

Intake Manifold Bolts/Studs

42 N路m

31 lb ft

Oil Cooler Line Fittings

75 N路m

55 lb ft

Oil Fill Neck Nuts

23 N路m

17 lb ft

Oil Filter Adapter Bolt

63 N路m

47 lb ft

Oil Gallery Plugs

34 N路m

25 lb ft

Oil Level Indicator Tube Bracket Bolt

4 N路m

36 lb in

Oil Pan (All Except Rear Two Bolts)

10 N路m

89 lb in

Oil Pan (Rear Two Bolts)

23 N路m

17 lb ft

Oil Pan Drain Plug

25 N路m

18 lb ft

Oil Pressure Switch

12 N路m

9 lb ft

Oil Pump Bolt

90 N路m

65 lb ft

Oil Pump Cover Screws

16 N路m

12 lb ft

Oil Pump Driver Clamp Bolt

42 N路m

31 lb ft

Thermostat Housing Bolts/Studs

47 N路m

31 lb ft

Turbocharger Mounting Bolts

65 N路m

48 lb ft

Upper Intake Manifold To Intake Manifold Bolts

23 N路m

17 lb ft

Valve Lifter Guide Plate Clamp Bolts

27 N路m

20 lb ft

Valve Rocker Arm Cover Bolts

27 N路m

20 lb ft

Valve Rocker Arm Shaft Bolts

55 N路m

40 lb ft

Water Pump Plate to Front Cover Bolts

28 N路m

20 lb ft

Water Pump Plate to Water Pump Bolts

28 N路m

20 lb ft

Water Pump to Front Cover Bolts

42 N路m

32 lb ft

Fastener Tightening Specifications C3500HD

Application

Specification

Metric

English

Accessory/Engine Lift Bracket Nut and Bolts

50 N路m

37 lb ft

Bell Housing Bolts

40 N路m

30 lb ft

Camshaft Gear Bolt

170 N路m

125 lb ft

Camshaft Thrust Plate Bolts

25 N路m

17 lb ft

Connecting Rod Cap Nuts

65 N路m

48 lb ft

Coolant Crossover Bolts/Studs

42 N路m

31 lb ft

Coolant Drain Plugs

25 N路m

18 lb ft

Crankshaft Balancer Bolt

270 N路m

200 lb ft

Crankshaft Bearing Cap Bolts

  • (Inner Bolts-12 mm) First Pass

75 N路m

55 lb ft

  • (Inner Bolts-12 mm) Second Pass

75 N路m

55 lb ft

  • (Inner Bolts-12 mm) Final Pass

+ 90 Degrees

  • (Outer Bolts-12 mm) First Pass

20 N路m

15 lb ft

  • (Outer Bolts-12 mm) Second Pass

20 N路m

15 lb ft

  • (Outer Bolts-12 mm) Final Pass

+ 90 Degrees

  • (Outer Bolts-10 mm) Single Pass

40 N路m

30 lb ft

Crankshaft Pulley Bolts

50 N路m

37 lb ft

Crankshaft Sensor Bolt

23 N路m

17 lb ft

Cylinder Head Bolts

  • First Pass

25 N路m

20 lb ft

  • Second Pass

75 N路m

55 lb ft

  • Third Pass

75 N路m

55 lb ft

  • Final Pass

+ 90 Degrees

Exhaust Manifolds Bolts

35 N路m

26 lb ft

Flywheel Bolts

90 N路m

65 lb ft

Front Cover Bolts

45 N路m

33 lb ft

Fuel Filter Mount Bolts

42 N路m

31 lb ft

Fuel Filter Water Drain Valve Stud

41 N路m

31 lb ft

Fuel Injection Line Fittings to Fuel Injection Nozzles

33 N路m

24 lb ft

Fuel Injection Line Fittings to Fuel Injection Pump

33 N路m

24 lb ft

Fuel Injection Nozzles

80 N路m

59 lb ft

Fuel Injection Pump Gear Retaining Bolts

25 N路m

20 lb ft

Fuel Injection Pump Nuts

40 N路m

30 lb ft

Glow Plugs

22 N路m

16 lb ft

Intake Manifold Bolts/Studs

42 N路m

31 lb ft

Oil Cooler Line Fittings

75 N路m

55 lb ft

Oil Fill Neck Nuts

23 N路m

17 lb ft

Oil Filter Adapter Bolt

63 N路m

47 lb ft

Oil Gallery Plugs

34 N路m

25 lb ft

Oil Level Indicator Tube Bracket Bolt

4 N路m

35 lb in

Oil Pan (All Except Rear Two Bolts)

10 N路m

89 lb in

Oil Pan (Rear Two Bolts)

23 N路m

17 lb ft

Oil Pan Drain Plug

25 N路m

18 lb ft

Oil Pressure Switch

12 N路m

9 lb ft

Oil Pump Bolt

90 N路m

65 lb ft

Oil Pump Cover Screws

16 N路m

12 lb ft

Oil Pump Driver Clamp Bolt

42 N路m

31 lb ft

Thermostat Housing Bolts/Studs

47 N路m

35 lb ft

Turbocharger Connector Hose Clamps

6 N路m

50 lb in

Turbocharger Exhaust Manifold Mounting Nuts

58 N路m

43 lb ft

Turbocharger Long Brace Bolt

50 N路m

37 lb ft

Turbocharger Long Brace Nut

34 N路m

26 lb ft

Turbocharger Oil Feed Line Fittings

28 N路m

21 lb ft

Turbocharger Oil Return Pipe Bolts

26 N路m

19 lb ft

Turbocharger Short Brace Bolts

25 N路m

18 lb ft

Upper Intake Connector Hose Clamps

6 N路m

50 lb in

Upper Intake Manifold to Intake Manifold Bolts

23 N路m

17 lb ft

Valve Lifter Guide Plate Clamp Bolts

27 N路m

20 lb ft

Valve Rocker Arm Cover Bolts

27 N路m

20 lb ft

Valve Rocker Arm Shaft Bolts

55 N路m

40 lb ft

Water Pump Plate to Coolant Pump Bolts

28 N路m

20 lb ft

Water Pump Plate to Front Cover Bolts

28 N路m

20 lb ft

Water Pump to Front Cover Bolts

42 N路m

32 lb ft

Application

Specification

Metric

English

A/C Compressor Mounting Bolts

50 N路m

37 lb ft

Battery Negative Cable to Engine Bolt

25 N路m

18 lb ft

Camshaft Gear Bolt

170 N路m

125 lb ft

Camshaft Thrust Plate Bolts

25 N路m

17 lb ft

Coolant Drain Plugs

25 N路m

18 lb ft

Crankshaft Balancer Bolt

270 N路m

200 lb ft

Crankshaft Pulley Bolts

50 N路m

37 lb ft

Crankshaft Sensor Bolt

23 N路m

17 lb ft

Cylinder Head Bolts

  • First Pass

25 N路m

20 lb ft

  • Second Pass

75 N路m

55 lb ft

  • Third Pass

75 N路m

55 lb ft

  • Final Pass

+ 90 Degrees

Drive Belt Idler Pulley Bolt

83 N路m

61 lb ft

Drive Belt Tensioner Bolt

50 N路m

37 lb ft

Engine Lift Bracket Nut and Bolts

50 N路m

37 lb ft

Engine Mount to Engine Bolts

54 N路m

40 lb ft

Engine Mount to Frame Bolts

59 N路m

44 lb ft

Engine Mount to Frame Nut

45 N路m

33 lb ft

Engine Mount Through-Bolt

68 N路m

50 lb ft

Engine Oil Cooler Bracket Bolt

9 N路m

80 lb in

Engine Oil Cooler Retainer Bolt

6 N路m

53 lb in

Exhaust Manifold Pipe to Turbocharger Clamp

6 N路m

106 lb in

Flywheel Bolts

90 N路m

65 lb ft

Front Cover Bolts

45 N路m

33 lb ft

Fuel Filter Mount Bolts

42 N路m

31 lb ft

Fuel Injection Line Fittings to Fuel Injection Pump

33 N路m

24 lb ft

Fuel Injection Pump Gear Retaining Bolts

25 N路m

20 lb ft

Fuel Injection Pump Nuts

40 N路m

30 lb ft

Glow Plugs

22 N路m

16 lb ft

Ground Wire to Intake Stud Nuts

25 N路m

18 lb ft

Heater Hose Bracket Nuts

30 N路m

22 lb ft

Lower Intake Manifold Bolts/Studs

42 N路m

31 lb ft

Oil Cooler Line Fittings

75 N路m

55 lb ft

Oil Fill Neck Nuts

23 N路m

17 lb ft

Oil Filter

Contact +1 to 1录 Turn

Oil Filter Adapter Fitting

27 N路m

20 lb ft

Oil Gallery Plugs

34 N路m

25 lb ft

Oil Level Indicator Tube Bracket Bolt

4 N路m

35 lb in

Oil Pan (All Except Rear Two Bolts)

10 N路m

89 lb in

Oil Pan (Rear Two Bolts)

23 N路m

17 lb ft

Oil Pan Drain Plug

25 N路m

18 lb ft

Oil Pump Bolt

90 N路m

65 lb ft

Oil Pump Driver Clamp Bolt

42 N路m

31 lb ft

Thermostat Housing Bolts/Studs

47 N路m

35 lb ft

Torque Converter Bolts

60 N路m

44 lb in

Torque Converter Cover Bolts

33 N路m

24 lb in

Turbocharger Connector Hose Clamps

6 N路m

50 lb in

Turbocharger Exhaust Manifold Mounting Nuts

58 N路m

43 lb ft

Turbocharger Heat Shield to Bracket Bolts

6 N路m

53 lb in

Turbocharger Long Brace Bolt

50 N路m

37 lb ft

Turbocharger Long Brace Nut

34 N路m

26 lb ft

Turbocharger Oil Supply Hose Fittings

28 N路m

21 lb ft

Turbocharger Oil Return Pipe Bolts

26 N路m

19 lb ft

Turbocharger Short Brace Bolts

25 N路m

18 lb ft

Upper Intake Connector Hose Clamps

6 N路m

50 lb in

Upper Intake Manifold to Intake Manifold Bolts

23 N路m

17 lb ft

Vacuum Pump Mount Bolts

25 N路m

18 lb ft

Valve Lifter Guide Plate Clamp Bolts

27 N路m

20 lb ft

Valve Rocker Arm Cover Bolts

27 N路m

20 lb ft

Valve Rocker Arm Shaft Bolts

55 N路m

40 lb ft