Cylinder Head
CYLINDER HEAD SPECIFICATION
| Hem | Measurement | Qualification | Standard or New | Service Limit |
|---|---|---|---|---|
| Head | Warpage | -- | 0.05 mm (0.002 in.) | |
| Height | 120.95-121.05 mm (4.7618-4.7657 in.) | 120.8 mm (4.756 in) | ||
| Camshaft | End play | 0.05-0.20 mm (0.0020-0.0079 in.) | 0.20 mm (0.0079in.) | |
| Camshaft-to-holder oil clearance | 0.050-0.089 mm (0.00197-0.00350 in.) | 0.15 mm (0.0059 in.) | ||
| Total runout | 0.03 mm (0.0012 in.) max. | 0.04 mm (0.0016 in.) | ||
| Cam lobe height | Intake PRI | 34.299 mm (1.35035 in.) | -- | |
| Intake SEC | 35.621 mm (1.40240 in.) | -- | ||
| Exhaust | 36.512 mm (1.4375 in.) | -- | ||
| Valve | Clearance (cold) | Intake | 0.20-0.24 mm (0.008-0.009 in.) | -- |
| Exhaust | 0.28-0.32 mm (0.011 -0.012 in.) | -- | ||
| Stem O.D. | Intake | 5.485-5.495 mm (0.21594-0.21634 in.) | 5.455 mm (0.21476 in.) | |
| Exhaust | 5.450-5.460 mm (0.21457-0.21496 in.) | 5.420 mm (0.21339 in.) | ||
| Stem-to-guide clearance | Intake | 0.020-0.045 mm (0.00079-0.00177 in.) | 0.08 mm (0.0031 in.) | |
| Exhaust | 0.055-0.080 mm (0.00217-0.00315 in.) | 0.11 mm (0.0043 in.) | ||
| Valve seat | Width | Intake | 1.25-1.55 mm (0.0492-0.0610 in.) | 2.00 mm (0.0787 in.) |
| Exhaust | 1.25-1.55 mm (0.0492-0.0610 in.) | 2.00 mm (0.0787 in.) | ||
| Stem installed height | Intake | 46.75-47.55 mm (1.8405-1.8720 in.) | 47.80 mm (1.8819 in.) | |
| Exhaust | 46.68-47.48 mm (1.8378-1.8693 in.) | 47.73 mm (1.8791 in.) | ||
| Valve guide | Installed height | Intake | 21.20-22.20 mm (0.8346-0.8740 in.) | -- |
| Exhaust | 20.60-21.60 mm (0.8110-0.8740 in.) | -- | ||
| Rocker arm | Arm-to-shaft clearance | Intake | 0.015-0.046 mm (0.00059-0.00181 in.) | 0.046 mm (0.00181 in.) |
| Exhaust | 0.018-0.047 mm (0.00071-0.00185 in.) | 0.047 mm (0.00185 in.) |