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ME(H6DO)-3 MECHANICAL General Description Valve Head edge thickness mm (in) Intake Standard 1.0 (0.039) Exhaust Standard 1.2 (0.047) Stem outer diameter mm (in) Intake 5.455 — 5.470 (0.2148 — 0.2154) Exhaust 5.445 — 5.460 (0.2144 — 0.2150) Stem oil clearance Intake Standard 0.030 — 0.057 (0.0012 — 0.0022) Exhaust Standard 0.040 — 0.067 (0.0016 — 0.0026) Overall length mm (in) Intake 99.7 (3.925) Exhaust 105.2 (4.142) Outer diameter of valve lifter mm (in) 32.959 — 32.975 (1.2976 — 1.2982) Valve spring Free length mm (in) Intake Inner 39.55 (1.5571) Outer 41.18 (1.6213) Exhaust 46.32 (1.8236) Squareness Intake Inner 2.5 °, 1.7 mm (0.067 in) Outer 2.5 °, 1.8 mm (0.071 in) Exhaust 2.5 °, 2.0 mm (0.079 in) Cylinder Standard height mm (in) 202 (7.95) Cylinder inner diameter mm (in) Stan- A 89.205 — 89.215 (3.5120 — 3.5124) B 89.195 — 89.205 (3.5116 — 3.5120) Cylindricality mm (in) Standard 0.030 (0.0012) Out-of-roundness mm (in) Standard 0.010 (0.0004) Piston clearance mm (in) Standard −0.010 — 0.010 (−0.0004 — 0.0004) Piston Outer diameter mm (in) Standard A 89.205 — 89.215 (3.5120 — 3.5124) B 89.195 — 89.205 (3.5116 — 3.5120) 0.25 (0.0098) OS 89.445 — 89.465 (3.5215 — 3.5222) 0.50 (0.0197) OS 89.695 — 89.715 (3.5313 — 3.5321) Inner diameter of piston pin hole Standard 22.000 — 22.006 (0.8661 — 0.8664) Piston pin Outer diameter mm (in) Standard 21.994 — 22.000 (0.8659 — 0.8661) Standard clearance between piston and pis- mm (in) Standard 0.004 — 0.008 (0.0002 — 0.0003) Piston ring Ring closed gap mm (in) Top ring Standard 0.20 — 0.35 (0.0079 — 0.0138) Second ring Standard 0.35 — 0.50 (0.0138 — 0.0197) Oil ring Standard 0.20 — 0.60 (0.0079 — 0.0236) Ring groove gap mm (in) Top ring Standard 0.040 — 0.080 (0.0016 — 0.0031) Second ring Standard 0.030 — 0.070 (0.0012 — 0.0028) Oil ring Standard 0.045 — 0.125 (0.0018 — 0.0049) Connecting Thrust clearance mm (in) Standard 0.070 — 0.330 (0.0028 — 0.0130) Bearing of Oil clearance mm (in) Standard 0.016 — 0.043 (0.0006 — 0.0017) Bearing size (Thickness at cen- mm (in) Standard 1.490 — 1.506 (0.0587 — 0.0593) 0.03 (0.0012) US 1.509 — 1.513 (0.0594 — 0.0596) 0.05 (0.0020) US 1.519 — 1.523 (0.0598 — 0.0600) 0.25 (0.0098) US 1.619 — 1.623 (0.0637 — 0.0639) Bushing of Clearance between piston pin and bushing mm (in) Standard 0 — 0.022 (0 — 0.0009) |