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CAMSHAFT VISUAL CHECK Check camshaft for scratches, seizure and wear. CAMSHAFT END PLAY 1. Install camshaft in cylinder head. 2. Tighten bracket bolts to the specified torque. 3. Measure camshaft end play. Camshaft end play: Standard 0.115 - 0.188 mm (0.0045 - 0.0074 in) CAMSHAFT RUNOUT 1. Measure camshaft runout at the center journal. Runout (Total indicator reading): Limit 0.05 mm (0.0020 in) 2. If it exceeds the limit, replace camshaft. CAMSHAFT CAM HEIGHT 1. Measure camshaft cam height. Cam height: Standard Unit: mm (in) Intake 48.70 - 48.75 (1.9173 - 1.9193) Exhaust 49.15 - 49.20 (1.9350 - 1.9370) 2. If wear is beyond the limit, replace camshaft. CAMSHAFT JOURNAL CLEARANCE Using micrometer 1. Measure the inner diameter of camshaft bearings. Standard inner diameter: Tighten bracket bolts to the specified torque. 2. Measure the outer diameter of camshaft journals. Standard outer diameter: 29.935 - 29.955 mm (1.1785 - 1.1793 in) If clearance exceeds the limit, replace camshaft and/or cylinder Standard clearance: 0.045 - 0.086 mm (0.0018 - 0.0034 in) Limit: 0.1 mm (0.004 in) SEM726B SEM155 . SEM730B . SEM727B SEM728B CYLINDER HEAD CD20T Inspection (Cont’d) EM-147 |