M45 V8-4.5L (VK45DE) (2006)
1. To remove valve guide, heat cylinder head to 110 to 130°C (230 to 266°F) by soaking in heated oil.
2. Drive out valve guide with a press [under a 20 kN (2 ton, 2.2 US ton, 2.0 Imp ton) pressure] or hammer and valve guide drift (commercial
service tool).
CAUTION: Cylinder head contains heat. When working, wear protective equipment to avoid getting burned.
3. Using valve guide reamer (commercial service tool), ream cylinder head valve guide hole.
Valve guide hole diameter (for service parts):
Intake and exhaust: 10.175 - 10.196 mm (0.4006 - 0.4014 inch)
4. Heat cylinder head to 110 to 130°C (230 to 266°F) by soaking in heated oil.