engine

Harmonic Balancer Torque Specs

for 2002 GMC Sierra 1500 4.3L V6 Vortec · RWD

Units

9 fasteners

Seq

Component

Torque

Angle

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Cover Bolts

14 lb-ft · 19 Nm

—

Crankshaft Pulley Bolt

Often TTY - check spec, may require impact | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

133 lb-ft · 180 Nm

—

Electrical Connector Bolts

6 lb-ft · 8 Nm

—

Gasket Bolts

15 lb-ft · 20 Nm

—

Gasket Surface Bolts

Clean mating surfaces

17 lb-ft · 23 Nm

—

Harmonic Balancer Bolt

Often TTY, may need impact | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

133 lb-ft · 180 Nm

—

Mounting Bolts

40 lb-ft · 54 Nm

—

Sensor Bolts

8 lb-ft · 11 Nm

—

Sensor Mounting Bolts

9 lb-ft · 12 Nm

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