Valve: Service and Repair

LEGEND
1 Bearing Cap
2 Nut
3 Camshaft
4 Hydraulic Lifter
5 Keepers
6 Upper Valve Spring Plate
7 Outer Valve Spring
8 Inner Valve Spring
9 Valve Stem Seal
10 Lower Valve Spring Plate
11 Valve Guide
12 Camshaft Oil Seal
13 Cylinder Head
14 Valves
15 Swirl Chamber
16 Lower Sealing Cone

NOTE:
- During removal and installation procedures, refer to the component location illustration above and component notes below.
- Valve grinding is not permitted.
- Only lapping-in is allowed.


COMPONENT NOTES
Bearing Cap (1)
- Note installation position, refer to the Installation procedures below.

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


Camshaft (3)
- Check axial clearance, refer to Testing and Inspection.

Hydraulic Lifter (4)
- Do not interchange.
- Has hydraulic valve clearance compensation.
- Checking, refer to Lifter Valve.
- Store with cam contact surface facing downwards.
- Check camshaft axial clearance, before installing.
- Oil the contact surfaces before assembly.

Outer Valve Spring (7)
- Remove or install with Cylinder Head Assembly removed using valve spring compressor tool No 2037, or equivalent.

Inner Valve Spring (8)
- Remove or install with Cylinder Head Assembly removed using valve spring compressor tool No 2037, or equivalent.

Valve Stem Seal (9)
- Refer to Cylinder Head Assembly for procedure.

Valve Guide (11)
- Testing and inspection, refer to Cylinder Head Assembly.
- Replacement, refer to Cylinder Head Assembly.

Camshaft Oil Seal (12)
- Oil but DO NOT grease seal lips.
- To remove and install, remove camshaft bearing cap.
- Refer to Timing Components for toothed timing belt removal.

Cylinder Head (13)

Valves (14)

Swirl Chamber (15)
- Replace if damaged, refer to Cylinder Head Assembly.

Lower Sealing Cone (16)