Cylinder Head
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Illustration 1 | g01618524 |
Typical example |
Lubricate the threads and the underside of the head bolts with clean engine oil.
- Tighten the bolts in the sequence that is shown in Illustration 1 to the following torque. ... 50 N·m (37 lb ft)
- Tighten the bolts again to the following torque. ... 100 N·m (74 lb ft)
- Tighten the head bolts to the additional amount. ... 225 degrees
- Tighten the bolts again to the following torque. ... 100 N·m (74 lb ft)
Minimum thickness of cylinder head ... 94.80 mm (3.7323 inch)
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Illustration 2 | g01618556 |
Typical example |
Note: The maximum distortion of the cylinder head is given in table 1.
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Dimension     | Maximum Permissible Distortion     |
---|---|
Width (A)     | 0.03 mm (0.0012 inch)     |
Length (B)     | 0.05 mm (0.0020 inch)     |
Diagonal Line (C)     | 0.05 mm (0.020 inch)     |
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Illustration 3 | g01618557 |
Typical example |
(C) Valve guide bores
- Inlet and exhaust ... 5.979 to 5.992 mm (0.2354 to 0.2359 inch)
(D) Valve depths
- Inlet ... 0.905 to 1.163 mm (0.0356 to 0.0458 inch)
- The service limit for the depth of the inlet valve ... 1.41 mm (0.0555 inch)
- Exhaust ... 0.876 to 1.131 mm (0.0345 to 0.0445 inch)
- The service limit for the exhaust valve depth ... 1.38 mm (0.0543 inch)
- The service limit for the depth of the inlet valve ... 1.41 mm (0.0555 inch)
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