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5. Remove valve oil seals using valve oil seal puller (SST). check. (Refer to EM-60.) 8. Before removing valve guides, perform valve guide clearance check. (Refer to below.) Inspection CYLINDER HEAD DISTORTION Using straightedge and feeler gauge, check the bottom of the cyl- Limit: 0.2 mm (0.008 in) VALVE DIMENSION Using micrometer, measure the dimensions of each part. Unit: mm (in) Intake valve Exhaust valve L 113.5 (4.4685) 113.5 (4.4685) T 1.5 (0.059) 1.5 (0.059) φ d 6.962 - 6.977 (0.2741 - 0.2747) 6.945 - 6.960 (0.2734 - 0.2740) φ D 31.9 - 32.1 (1.256 - 1.264) 29.9 - 30.1 (1.177 - 1.185) α (degree) 45°00 ′ - 45°30 ′ 45°00 ′ - 45°30 ′ VALVE GUIDE CLEARANCE I Perform the inspection before removing valve guides. I Check that the valve stem diameter is within specifications. I Push valve approximately 25 mm (0.98 in) toward combustion I Valve guide clearance is 1/2 of movement on dial indicator. FEM065 FEM066 FEM067 FEM068 CYLINDER HEAD ZD Disassembly (Cont’d) EM-58 |