Replacement

LEGEND
1 Bearing Cap
2 Bearing Cap Nut
3 Camshafts
4 Camshaft Sprocket
5 Trigger Wheel
6 Camshaft Sprocket Bolt
7 Cylinder Head Deck Height Measurement Point
8 Cylinder Head
9 Valves
10 Valve Guide
11 Valve Stem Seal
12 Valve Springs
13 Valve Spring Plate
14 Valve Keepers
15 Hydraulic Lifter

NOTE:
- During removal and installation procedures, refer to the component location illustration above and component notes below.
- Also refer to Cylinder Head Assembly.

COMPONENT NOTES
Bearing Cap (1)
- Note installed position.
- Note installation and tightening sequence.

Bearing Cap Nut (2)
- Tighten to: 20 Nm (15 ft. lbs.).

Camshafts (3)
- Refer to Testing and Inspection.
- Check axial clearence with lifters removed.
- Axial clearence: 0.15 mm (0.0060 inch)
- Radial clearence: 0.1 mm (0.0039 inch)
- Maximum runout: 0.01 mm (0.0004 inch)

Trigger Wheel (5)
- For Camshaft Position (CMP) Sensor.
- When installing, contact surfaces must be dry.

Camshaft Sprocket Bolt (6)
- Tighten to: 100 Nm (74 ft. lbs.).
- Counter hold with a suitable 22 mm wrench on camshafts when removing or installing.
- Oil contact surface when installing.

Cylinder Head Deck Height (7)
- Dimension a, minimum: 139.5 mm (5.4963 inch).

Valves (9)
- Do not rework, only lapping is permitted.

Valve Guide (10)
- Replacement guides have a collar.

Hydraulic Lifter (15)
- Do not interchange used lifters.
- Store with camshaft contact surfaces down.
- Oil contact surfaces.
- Remove prior to checking camshaft axial clearence