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BMW 3 Series (E30)
Service Manual: 1984, 1985, 1986, 1987, 1988, 1989, 1990
Price: $99.95
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Table m. Valve specifications
| Specification | 1984 - 1987 325, 325e, 325es | 1988 325 and all 325i | 1984 and 1985 318i |
| Valve head diameter (a) intake exhaust |
40 mm (1.575 in.) 34 mm(1.339 in.) |
42 mm (1.654 in.) 36 mm(1.417 in.) |
46 mm (1.811 in.) 38 mm(1.496 in.) |
| Minimum valve head thickness (b) intake exhaust |
1.3 mm (0.051 in.) 2.0 mm(0.079 in.) |
1.3 mm (0.051 in.) 2.0 mm(0.079 in.) |
1.3 mm (0.051 in.) 2.0 mm(0.079 in.) |
| Valve face angle (c) | 45° | 45° | 45° |
| Valve stem diameter (d) standard oversize 1 oversize 2 |
7.0 mm (0.275 in.) 7.1 mm (0.279 in.) 7.2 mm (0.283 in.) |
7.0 mm (0.275 in.) 7.1 mm (0.279 in.) 7.2 mm (0.283 in.) |
8.0 mm (0.315 in.) 8.1 mm (0.319 in.) 8.2 mm (0.323 in.) |
Engine
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