engine

Head Gasket - Single Torque Specs

for 2016 Chevrolet Impala 3.6L V6 LFX · AWD

Units

46 fasteners

Seq

Component

Torque

Angle

—

Camshaft Bearing Cap Bolts

Tighten in sequence, 3 passes

10 lb-ft · 14 Nm

—

Camshaft Bearing Cap Bolts

Critical

Tighten in sequence, 3 passes

10 lb-ft · 14 Nm

—

Camshaft Cap Bolts

Tighten in sequence from center outward, multiple passes

10 lb-ft · 14 Nm

—

Camshaft Cap Bolts

Critical

Tighten in sequence from center outward, multiple passes

10 lb-ft · 14 Nm

—

Camshaft Sprocket Bolt

Critical

Hold cam with wrench on hex

59 lb-ft · 80 Nm

—

Camshaft Sprocket Bolt

Hold cam with wrench on hex

59 lb-ft · 80 Nm

—

Cover Bolts

14 lb-ft · 19 Nm

—

Cover Bolts

14 lb-ft · 19 Nm

—

Cylinder Head Bolts

Multi-step + angle

75 lb-ft · 101 Nm

—

Cylinder Head Bolts

Critical

Multi-step + angle

75 lb-ft · 101 Nm

—

Cylinder Head Bolts (M11)

Critical

REPLACE BOLTS. Step 1: 22 lb-ft. Step 2: +150° (or +90° then +60°). Tighten in sequence.

22 lb-ft · 30 Nm

150°

—

Cylinder Head Bolts (M11)

REPLACE BOLTS. Step 1: 22 lb-ft. Step 2: +150° (or +90° then +60°). Tighten in sequence.

22 lb-ft · 30 Nm

150°

—

Cylinder Head Bolts (M8 Front)

Critical

Tighten after M11 bolts.

22 lb-ft · 30 Nm

—

Cylinder Head Bolts (M8 Front)

Tighten after M11 bolts.

22 lb-ft · 30 Nm

—

Cylinder Head Bolts Step 1

Critical

Always use new TTY bolts

30 lb-ft · 40 Nm

—

Cylinder Head Bolts Step 1

Always use new TTY bolts

30 lb-ft · 40 Nm

—

Cylinder Head Bolts Step 2

Critical

Tighten in sequence

59 lb-ft · 80 Nm

—

Cylinder Head Bolts Step 2

Tighten in sequence

59 lb-ft · 80 Nm

—

Cylinder Head Bolts Step 3 (90 deg)

Critical

Plus 90 degrees

7 lb-ft · 10 Nm

—

Cylinder Head Bolts Step 3 (90 deg)

Plus 90 degrees

7 lb-ft · 10 Nm

—

Electrical Connector Bolts

6 lb-ft · 8 Nm

—

Electrical Connector Bolts

6 lb-ft · 8 Nm

—

Exhaust Manifold Nuts

Critical

Apply anti-seize, work hot-to-cold

22 lb-ft · 30 Nm

—

Exhaust Manifold Nuts

Apply anti-seize, work hot-to-cold

22 lb-ft · 30 Nm

—

Gasket Surface Bolts

Critical

Clean mating surfaces

17 lb-ft · 23 Nm

—

Gasket Surface Bolts

Clean mating surfaces

17 lb-ft · 23 Nm

—

Intake Manifold Bolts

Tighten in sequence

18 lb-ft · 25 Nm

—

Intake Manifold Bolts

Critical

Tighten in sequence

18 lb-ft · 25 Nm

—

Mounting Bolts

Critical

40 lb-ft · 54 Nm

—

Mounting Bolts

40 lb-ft · 54 Nm

—

Oil Drain Plug

Use new crush washer

26 lb-ft · 35 Nm

—

Oil Drain Plug

Critical

Use new crush washer

26 lb-ft · 35 Nm

—

Rocker Arm Bolts

Critical

Tighten with cam lobe pointing away

22 lb-ft · 30 Nm

—

Rocker Arm Bolts

Tighten with cam lobe pointing away

22 lb-ft · 30 Nm

—

Sensor Mounting Bolts

9 lb-ft · 12 Nm

—

Sensor Mounting Bolts

9 lb-ft · 12 Nm

—

Thermostat Housing Bolts

11 lb-ft · 15 Nm

—

Thermostat Housing Bolts

11 lb-ft · 15 Nm

—

Timing Chain Guide Bolts

Critical

Replace if worn

9 lb-ft · 12 Nm

—

Timing Chain Guide Bolts

Replace if worn

9 lb-ft · 12 Nm

—

Timing Chain Tensioner Bolt

Install with pin/clip to compress

18 lb-ft · 25 Nm

—

Timing Chain Tensioner Bolt

Critical

Install with pin/clip to compress

18 lb-ft · 25 Nm

—

Valve Cover Bolts

Tighten in sequence

7 lb-ft · 10 Nm

—

Valve Cover Bolts

Tighten in sequence

7 lb-ft · 10 Nm

—

Water Pump Bolts

Critical

Tighten in criss-cross pattern

18 lb-ft · 25 Nm

—

Water Pump Bolts

Tighten in criss-cross pattern

18 lb-ft · 25 Nm

—

2016 CHEVROLET IMPALA

46 fasteners