engine

Valve Seals Torque Specs

for 2012 GMC Yukon 5.3L V8 · RWD

Units

12 fasteners

Seq

Component

Torque

Angle

—

Camshaft Cap Bolts

Tighten in sequence from center outward, multiple passes

10 lb-ft · 14 Nm

—

Cover Bolts

15 lb-ft · 20 Nm

—

Electrical Connector Bolts

6 lb-ft · 8 Nm

—

Gasket Bolts

19 lb-ft · 25 Nm

—

Gasket Surface Bolts

Clean mating surfaces

19 lb-ft · 26 Nm

—

Mounting Bolts

44 lb-ft · 60 Nm

—

Rocker Arm Bolts

Tighten with cam lobe pointing away

22 lb-ft · 30 Nm

—

Rocker Arm Shaft Bolts

Tighten evenly in sequence

18 lb-ft · 25 Nm

—

Sensor Bolts

10 lb-ft · 14 Nm

—

Sensor Mounting Bolts

10 lb-ft · 14 Nm

—

Spark Plugs - Aluminum Head

Apply anti-seize to threads

15 lb-ft · 20 Nm

—

Valve Cover Bolts

Tighten in sequence

7 lb-ft · 10 Nm

—

2012 GMC YUKON

12 fasteners