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CYLINDER HEAD EM-39 [KA24DE] C D E F G H I J K L M A EM VALVE SEATS Check valve seats for pitting at contact surface. Resurface or ● Before repairing the valve seats, check the valves and valve ● Use both hands to resurface the valve seat uniformly using a REPLACING VALVE SEAT 1. Bore out the old seat until it collapses. Boring should not con- 2. Ream the cylinder head valve seat recess. CAUTION: Use the valve guide center for a reference point for reaming so the valve and valve seat will have 3. Heat the cylinder head to 120 ° - 140°C (248° - 284°F) in heated oil. SBIA0322E SEM302D SEM795A Reaming bore for service valve seat Oversize : 0.5 mm (0.020 in) Intake : 38.000 - 38.016 mm (1.4961 - 1.4967 in) Exhaust : 32.700 - 32.716 mm (1.2874 - 1.2880 in) SEM008A |