Reconditioning; Removing Valves From Cylinder Head; Inspecting Valve Guides - Navistar INTERNATIONAL DT 466 Service Manual

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Reconditioning

Removing Valves from Cylinder Head

WARNING: To prevent serious personal
injury, possible death, or damage to the engine
or vehicle, wear safety glasses when removing
valves or valve spring retainer keys.
1. Install a valve spring compressor tool over the
valve, see Cylinder head and valve special
service tools (Table 17).
spring.
Figure 160 Removing valve spring retainer keys
1. Valve spring compressor tool
2. Valve spring retainer key
3. Magnet
2. Use a magnet to remove the valve spring retainer
keys.
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
CYLINDER HEAD AND VALVE TRAIN
Compress the valve
EGES-265-2
Follow all warnings, cautions, and notes.
© 2009 Navistar, Inc.
Figure 161 Removing valve rotator, spring, and
valve stem seal
1. Valve stem seal
2. Valve stem
3. Valve spring
4. Valve rotator
3. Remove valve spring compression tool, valve
rotator, and spring.
4. Remove and discard valve stem seal.
5. Remove valve from the cylinder head.
6. Repeat steps 1-5 for all 24 valve locations.

Inspecting Valve Guides

Figure 162 Cleaning valve guides
1. After removing valves, use soap, water, and a
nylon brush to clean valve guides.