| Maximum allowable skew | 0.178 mm (0.007 inch) |
| Minimum valve edge width | 0.794 mm (1/32 inch) |
| Inlet valve | |
| Saddle angle | 44.5 degrees |
| Rod diameter | 8.694-8.674 mm (0.3423-0.2415 inch) |
| Clearance between valve stem and guides | 0.025-0.071mm (0.001-0.0028 inch) |
| Exhaust valve | |
| Saddle angle | 44.5 degrees |
| Rod diameter | 8.682-8.661 mm (0.3418-0.3410 inch) |
| Clearance between valve stem and guides | 0.038-0.084mm (0.0015-0.0033 inch) |
| Valve spring pressure | |
| With valve open | |
| up to 1991 release inclusive | 845.1 N (190 lbf) at 32.5 mm (1.28 inches). |
| 1992 release | 978.6 N (220 lbf) at 29.972 mm (1.18 inches) |
| With closed valve | |
| up to 1991 release inclusive | 324.7 N (73 lbf) at 43.18 mm (1.7 inches) |
| 1992 release | 378.1 N (85 lbf) at 41.91 mm (1.65 inches) |
| valve tappet | |
| diameter (standard | 22.2-22.212 mm (0.8740-0.8745 inches) |
| Gap between tappets and hole | 0.018-0.069mm (0.0007-0.0027 inch) |
| Crankshaft journal, diameter | 58.682-58.702 mm (2.3103-2.3111 inches) |
| Bearing oil clearance | |
| desirable | 0.025-0.036mm (0.001-0.0014 inch) |
| admissible | 0.022-0.069mm (0.00086-0.0027 inch) |
| Connecting rod side clearance standard | 0.119-0.29mm (0.0047-0.0114 inches) |
| Operating limit | 0.356 mm (0.014 inch) |
| Main bearing journal, diameter | 63.983-64.003 mm (2.5190-2.5198 inches) |
| Bearing oil clearance | |
| desirable | 0.025-0.036mm (0.001-0.0014 inch) |
| admissible | 0 013-0.058 mm (0.0005-0.0023 inch) |
| Crankshaft play (inside the bearing) | 0.102-0.203mm (0.004-0.008 inch) |
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