Cylinder Head
CYLINDER HEAD SPECIFICATION TABLE
| Item | Measurement | Qualification | Standard or New | Service Limit |
|---|---|---|---|---|
| Head | Warpage | - | 0.08 mm (0.003 in.) | - |
| Height | - | 119.9-120.1 mm (4.72-4.73 in.) | - | |
| Camshaft | End play | - | 0.05-0.25 mm (0.002-0.010 in.) | 0.5 mm (0.02 in.) |
| Camshaft-to-holder oil clearance | - | 0.045-0.084 mm (0.0018-0.0033 in.) | 0.100 mm (0.0039 in.) | |
| Total runout | - | 0.03 mm (0.001 in.) max. | - | |
| Cam lobe height | Intake, PRI | 35.241 mm (1.3874 in.) | - | |
| Intake, SEC | 36.173 mm (1.4241 in.) | - | ||
| Exhaust | 35.471 mm (1.39649 in.) | - | ||
| Valve | Clearance (cold) | Intake | 0.15-0.19 mm (0.006-0.007 in.) | - |
| Exhaust | 0.26-0.30 mm (0.010-0.012 in.) | - | ||
| Stem O.D. | Intake | 5.48-5.49 mm (0.216-0.216 in.) | 5.45 mm (0.215 in.) | |
| Exhaust | 5.45-5.46 mm (0.215-0.215 in.) | 5.42 mm (0.213 in.) | ||
| Stem-to-guide clearance | Intake | 0.020-0.050 mm (0.0008-0.0020 in.) | 0.08 mm (0.003 in.) | |
| Exhaust | 0.050-0.080 mm (0.0020-0.0031 in.) | 0.11 mm (0.004 in.) | ||
| Valve seat | Width | Intake | 0.850-1.150 mm (0.0335-0.0453 in.) | 1.60 mm (0.063 in.) |
| Exhaust | 1.250-1.550 mm (0.0492-0.0610 in.) | 2.00 mm (0.079 in.) | ||
| Stem installed height | Intake | 46.1-46.5 mm (1.81-1.83 in.) | 46.8 mm (1.84 in.) | |
| Exhaust | 46.2-46.6 mm (1.82-1.83 in.) | 46.9 mm (1.85 in.) | ||
| Valve guide | Installed height | Intake | 15.85-16.35 mm (0.624-0.644 in.) | - |
| Exhaust | 15.85-16.35 mm (0.624-0.644 in.) | - | ||
| Rock arm | Arm-to-shaft clearance | Intake | 0.017-0.048 mm (0.0007-0.0019 in.) | 0.08 mm (0.003 in.) |
| Exhaust | 0.019-0.050 mm (0.0007-0.0020 in.) | 0.08 mm (0.0031 in.) |