Valve Guide: Service and Repair

VALVE GUIDE REPLACEMENT
1. To remove valve guide, heat cylinder head to 150 to 160°C (302 to 320°F).





2. Drive out valve guide with a press [under a 20 kN (2 t 2.2 US ton, 2.0 Imp ton) pressure] or hammer and suitable tool.





3. Ream cylinder head valve guide hole.
Valve guide hole diameter (for service parts):
Intake
11.175 - 11.196 mm (0.4400 - 0.4408 in)
Exhaust
12.175 - 12.196 mm (0.4793 - 0.4802 in)





4. Heat cylinder head to 150 to 160°C (302 to 320°F) and press service valve guide onto cylinder head.
Projection "L":
13.2 - 13.4 mm (0.520 - 0.528 in)





5. Ream valve guide.
Finished size:
Intake
7.000 - 7.018 mm (0~2756 - 0.2763 in)
Exhaust
8.000 - 8.018 mm (0.3150 - 0.3157 in)