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(c) Using a vernier caliper, measure the valve's overall length. Standard overall length: 110.40 mm (4.35 in.) Minimum overall length: 109.90 mm (4.33 in.) If the overall length is less than the minimum, replace the exhaust valve. 6. INSPECT VALVE GUIDE BUSH OIL CLEARANCE Standard bush inside diameter: 5.51 to 5.53 mm (0.217 to 0.218 in.) (b) Subtract the valve stem diameter measurement from the guide bush inside diameter measurement. Standard oil clearance: ITEM SPECIFIED CONDITION Intake 0.025 to 0.060 mm (0.000984 to 0.00236 in.) Exhaust 0.030 to 0.065 mm (0.00118 to 0.00256 in.) Maximum oil clearance: ITEM SPECIFIED CONDITION Intake 0.08 mm (0.00315 in.) Exhaust 0.10 mm (0.00394 in.) If the oil clearance is greater than the maximum, replace the valve and guide bush. 7. INSPECT INTAKE VALVE SEAT HINT: Do not rotate the valve while pressing the valve. (c) Check the valve face and valve seat. surfaces, with the width between 1.1 to 1.5 mm (0.0433 to 0.0591 in.). If not, correct the valve seat. If not, correct the valve seat. 3UR-FE ENGINE MECHANICAL: CYLINDER HEAD: INSPECTION... |