Valve Guide - Replacement

CAUTION: When installing camshafts, chain tensioners, oil seals, or other sliding parts, lubricate contacting surface with new engine oil.
Apply new engine oil to threads and seat surface when installing cylinder head, camshaft sprocket, crankshaft pulley, and camshaft bracket.
Attach tags to valve lifters so as not to mix them up.

CYLINDER HEAD ASSEMBLY:

VALVE GUIDE REPLACEMENT
When valve guide is removed, replace with oversized (0.2 mm, 0.008 inch) valve guide.






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 suitable tool.






3. 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.






5. Press valve guide from camshaft side to dimensions as in illustration.






6. Using valve guide reamer, apply reamer finish to valve guide.

STANDARD
Intake and exhaust: 6.000 - 6.018 mm (0.2362 - 0.2369 inch)