|
|
ME(H4SO)-4 MECHANICAL GENERAL DESCRIPTION Valve Free length 54.30 mm (2.1378 in) Squareness 2.5 ° , 2.4 mm (0.094 in) Tension/spring height Set 214 — 246 N (22 — 25 kgf, 48 — 55 lb)/ 45.0 mm (1.772 in) Lift 526 — 582 N (54 — 59 kgf, 119 — 130 lb)/ 34.7 mm (1.366 in) Cylinder Surface warpage limit (mating with cylinder head) 0.05 mm (0.0020 in) Surface grinding limit 0.1 mm (0.004 in) Cylinder bore 2000 cc STD A 92.005 — 92.015 mm (3.6222 — 3.6226 in) B 91.995 — 92.005 mm (3.6218 — 3.6222 in) 2500 cc STD A 99.505 — 99.515 mm (3.9175 — 3.9179 in) B 99.495 — 99.505 mm (3.9171 — 3.9175 in) Taper STD 0.015 mm (0.0006 in) Limit 0.050 mm (0.0020 in) Out-of-roundness STD 0.010 mm (0.0004 in) Limit 0.050 mm (0.0020 in) Piston clearance STD 0.010 — 0.030 mm (0.0004 — 0.0012 in) Limit 0.050 mm (0.0020 in) Enlarging (boring) limit 0.5 mm (0.020 in) Piston Outer diameter 2000 cc STD A 91.985 — 91.995 mm (3.6214 — 3.6218 in) B 91.975 — 91.985 mm (3.6211 — 3.6214 in) 0.25 mm (0.0098 in) OS 92.225 — 92.235 mm (3.6309 — 3.6313 in) 0.50 mm (0.0197 in) OS 92.475 — 92.485 mm (3.6407 — 3.6411 in) 2500 cc STD A 99.485 — 99.495 mm (3.9167 — 3.9171 in) B 99.475 — 99.485 mm (3.9163 — 3.9167 in) 0.25 mm (0.0098 in) OS 99.725 — 99.735 mm (3.9262 — 3.9266 in) 0.50 mm (0.0197 in) OS 99.975 — 99.985 mm (3.9360 — 3.9364 in) Standard inner diameter of piston pin hole 23.000 — 23.006 mm (0.9055 — 0.9057 in) Piston pin Outer diameter 22.994 — 23.000 mm (0.9053 — 0.9055 in) Standard clearance between piston pin and piston 0.004 — 0.008 mm (0.0002 — 0.0003 in) Degree of fit Piston pin must be fitted into position with thumb at 20 ° C (68 ° F). Piston ring Piston ring gap Top ring STD 0.20 — 0.35 mm (0.0079 — 0.0138 in) Limit 1.0 mm (0.039 in) Second 2000 cc STD 0.35 — 0.50 mm (0.0138 — 0.0197 in) Limit 1.0 mm (0.039 in) 2500 cc STD 0.37 — 0.52 mm (0.0146 — 0.0204 in) Limit 1.0 mm (0.039 in) Oil ring STD 0.20 — 0.50 mm (0.0079 — 0.0197 in) Limit 1.5 mm (0.059 in) Clearance Top ring STD 0.040 — 0.080 mm (0.0016 — 0.0031 in) Limit 0.15 mm (0.0059 in) Second STD 0.030 — 0.070 mm (0.0012 — 0.0028 in) Limit 0.15 mm (0.0059 in) Connecting Bend twist per 100 mm (3.94 Limit 0.10 mm (0.0039 in) Side clearance STD 0.070 — 0.330 mm (0.0028 — 0.0130 in) Limit 0.4 mm (0.016 in) |