engine

Piston - Single Torque Specs

for 2009 GMC Sierra 2500HD 6.6L V8 Duramax Diesel · 4WD

Units

11 fasteners

Seq

Component

Torque

Angle

—

Connecting Rod Bolts

Critical

TTY - critical torque plus angle

33 lb-ft · 45 Nm

—

Cover Bolts

16 lb-ft · 22 Nm

—

Cylinder Head Bolts

Critical

TTY - tighten in sequence plus angle

48 lb-ft · 65 Nm

—

Electrical Connector Bolts

7 lb-ft · 9 Nm

—

Gasket Bolts

Critical

15 lb-ft · 20 Nm

—

Gasket Surface Bolts

Critical

Clean mating surfaces

20 lb-ft · 27 Nm

—

Mounting Bolts

Critical

47 lb-ft · 64 Nm

—

Oil Drain Plug

Critical

Use new crush washer

26 lb-ft · 35 Nm

—

Oil Pan Bolts

Critical

9 lb-ft · 12 Nm

—

Sensor Bolts

8 lb-ft · 11 Nm

—

Sensor Mounting Bolts

11 lb-ft · 15 Nm

—

2009 GMC SIERRA 2500HD

11 fasteners