Cylinder Head Illustration
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1 |
Cylinder head height |
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2 |
Installation height of valve guide |
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3 |
Installation height of valve |
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4 |
Valve seat width in cylinder head |
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5 |
Valve seat angle in cylinder head |
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6 |
Valve stem diameter |
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7 |
Valve seat angle at valve |
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8 |
Valve length |
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9 |
Valve head - diameter |
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Cylinder Head (Continued)
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Engine |
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C 14 SEL, X 14 XE, C 16 XE, |
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C 16 SEL, X 16 XE |
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Cylinder head height 1) |
mm |
134.90 - 135.10 |
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Valve seat width in cylinder head |
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Intake valve |
mm |
1.0 - 1.4 |
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Exhaust valve |
mm |
1.4 - 1.8 |
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Valve seat angle in cylinder head |
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45 ° |
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Valve guide inside diameter |
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Standard size |
mm |
6.000 - 6.012 |
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Oversize (0.075) |
mm |
6.075 - 6.090 |
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Oversize (0.150) |
mm |
6.150 - 6.165 |
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Length of valve guide |
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Intake valve |
mm |
44.75 - 45.25 |
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Exhaust valve |
mm |
34.75 - 35.25 |
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Installation height of valve guide |
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Intake valve |
mm |
10.7 - 11.0 |
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Exhaust valve |
mm |
10.7 - 11.0 |
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Installation height of valves |
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Standard size |
mm |
38.6 - 38.7 |
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Oversize (0.075) |
mm |
- |
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Oversize (0.150) |
mm |
- |
1) Resurfacing of the cylinder head is not permitted.
Cylinder Head (Continued)
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Engine |
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C 14 SEL, X 14 XE, C 16 XE, |
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C 16 SEL, X 16 XE |
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Valve length |
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Standard size |
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Intake valve (GM) |
mm |
101.91 - 101.93 |
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Exhaust valve (GM) |
mm |
100.95 - 100.97 |
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Oversize (0.075) |
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Intake valve (GM K1) |
mm |
101.51 - 101.53 |
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Exhaust valve (GM K1) |
mm |
100.55 - 100.57 |
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Oversize (0.150) |
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Intake valve (GM K2) |
mm |
101.51 - 101.53 |
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Exhaust valve (GM K2) |
mm |
100.55 - 100.57 |
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Ø Valve stem |
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Standard size |
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Intake valve (GM) |
mm |
5.955 - 5.970 |
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Exhaust valve (GM) |
mm |
5.935 - 5.950 |
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Oversize (0.075) |
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Intake valve (GM K1) |
mm |
6.030 - 6.045 |
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Exhaust valve (GM K1) |
mm |
6.010 - 6.025 |
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Oversize (0.150) |
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Intake valve (GM K2) |
mm |
6.105 - 6.120 |
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Exhaust valve (GM K2) |
mm |
6.085 - 6.100 |
Cylinder Head (Continued)
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Engine |
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C 14 SEL, X 14 XE, C 16 XE, |
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C 16 SEL, X 16 XE |
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Valve stem play |
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Intake valve |
mm |
0.030 - 0.045 |
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Exhaust valve |
mm |
0.050 - 0.065 |
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perm. runout of the valve stem |
mm |
0.03 |
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Ø Valve head |
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Intake valve |
mm |
31.0 |
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Exhaust valve |
mm |
27.5 |
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Valve seat angle at valve head |
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90 ° 40' |
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Valve rotator |
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Intake valve |
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No code |
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Exhaust valve |
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No code |
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Engine |
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C 14 SEL, X 14 XE |
C 16 XE, C 16 SEL, X 16 XE |
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Camshaft |
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Cam lift |
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Intake |
mm |
8.50 |
8.50 |
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Exhaust |
mm |
8.00 |
8.50 |
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