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6A – 6 ENGINE MECHANICAL SERVICE STANDARD Engine mm (in) Parts Items Service standard Service limit Remarks Cylinder Head Valve Spring Valve and Camshaft 0.075 (0.0030) or less 95.0 (3.740) 45.7 (1.8) — 241 (54.2) 6.959 – 6.977 0.023 – 0.056 8.0 (0.312) 1.1 (0.0433) 1.2 (0.0472) 1.2 (0.0472) 45° 2.1 (0.0827) 2.1 (0.0827) 0.08 (0.00314) 46.67 (1.8374) 46.77 (1.8413) 29.939 – 29.960 0.02 (0.0008) or less 0.40 – 0.082 0.50 (0.0197) — 44.8 (1.765) 1.6 (0.063) 210 (47.22) 6.92 (0.270) 6.90 (0.269) 0.19 (0.0074) 0.20 (0.0079) — 1.6 (0.0630) 1.1 (0.0433) 1.1 (0.0433) — 2.6 (0.1024) 2.6 (0.1024) 2.0 (0.00797) 46.57 (1.8335) 46.67 (1.8374) 29.84 (1.1748) 0.10 (0.0039) 0.12 (0.0047) Cannot be Cylinder head lower surface for flatness Cylinder head height Free height Squareness Spring tension (when assembled) N(lb) Diameter of Valve stem IN EX Valve and valve guide clearance IN EX Valve guide upper end height Valve guide margin Valve thickness IN EX Valve seat contact surface angle Valve seat contact width IN EX End play Cam lobe height IN EX Journal diameter Runout Camshaft oil clearance |