Cylinder Head
(R20A5)
| Item | Measurement | Qualification | Standard or New | Service Limit |
|---|---|---|---|---|
| Head | Warpage | 0.08 mm (0.003 in) max. | - | |
| Height | 114.95-115.05 mm (4.5256-4.5295 in) | - | ||
| Camshaft | End play | 0.05-0.25 mm (0.0020-0.0098 in) | 0.4 mm (0.016 in) | |
| Camshaft-to-holder oil clearance | 0.045-0.084 mm (0.00177-0.00331 in) | 0.15 mm (0.0059 in) | ||
| Total runout | 0.03 mm (0.0012 in) max. | - | ||
| Cam lobe height | Intake PRI | 35.923 mm (1.41429 in) | - | |
| Intake SEC A | 35.415 mm (1.39429 in) | - | ||
| Intake SEC B | 36.027 mm (1.41838 in) | - | ||
| Exhaust | 35.870 mm (1.41220 in) | - | ||
| Valve | Clearance (cold) | Intake | 0.18-0.22 mm (0.008-0.008 in) | - |
| Exhaust | 0.23-0.27 mm (0.010-0.010 in) | - | ||
| Stem O.D. | Intake | 5.48-5.49 mm (0.2157-0.2161 in) | 5.45 mm (0.2146 in) | |
| Exhaust | 5.45-5.46 mm (0.2146-0.2150 in) | 5.42 mm (0.2134 in) | ||
| Stem-to-guide clearance | Intake | 0.02-0.05 mm (0.0008-0.0020 in) | 0.08 mm (0.0031 in) | |
| Exhaust | 0.05-0.08 mm (0.0020-0.0031 in) | 0.11 mm (0.0043 in) | ||
| Valve seat | Width | Intake | 0.85-1.15 mm (0.0335-0.0453 in) | 1.6 mm (0.063 in) |
| Exhaust | 1.25-1.55 mm (0.0492-0.0610 in) | 2.0 mm (0.079 in) | ||
| Stem installed height | Intake | 50.10-50.60 mm (1.9724-1.9921 in) | 50.90 mm (2.0039 in) | |
| Exhaust | 50.10-50.60 mm (1.9724-1.9921 in) | 50.90 mm (2.0039 in) | ||
| Valve guide | Installed height | Intake | 18.25-18.75 mm (0.7185-0.7382 in) | - |
| Exhaust | 18.25-18.75 mm (0.7185-0.7382 in) | - | ||
| Rocker arm | Arm-to-shaft clearance | Intake | 0.019-0.050 mm (0.00075-0.00197 in) | 0.08 mm (0.0031 in) |
| Exhaust | 0.019-0.050 mm (0.00075-0.00197 in) | 0.08 mm (0.0031 in) |
(K24Z7)
| Item | Measurement | Qualification | Standard or New | Service Limit |
|---|---|---|---|---|
| Head | Warpage | 0.05 mm (0.002 in) max. | - | |
| Height | 103.95-104.05 mm (4.0925-4.0964 in) | - |
| Item | Measurement | Qualification | Standard or New | Service Limit |
|---|---|---|---|---|
| Camshaft | End play | 0.05-0.20 mm (0.0020-0.0079 in) | 0.4 mm (0.016 in) | |
| Camshaft-to-holder oil clearance | No. 1 journal | 0.030-0.069 mm (0.00118-0.00272 in) | 0.150 mm (0.00591 in) | |
| No. 2, 3, 4, 5 journals | 0.060-0.099 mm (0.00236-0.00390 in) | 0.150 mm (0.00591 in) | ||
| Total runout | 0.03 mm (0.0012 in) max. | - | ||
| Cam lobe height | Intake PRI | 33.744 mm (1.32850 in) | - | |
| Intake MID | 35.456 mm (1.39590 in) | - | ||
| Intake SEC | 33.744 mm (1.32850 in) | - | ||
| Exhaust | 34.291 mm (1.35004 in) | - | ||
| Valve | Clearance (cold) | Intake | 0.21-0.25 mm (0.009-0.009 in) | - |
| Exhaust | 0.25-0.29 mm (0.010-0.011 in) | - | ||
| Stem O.D. | Intake | 5.475-5.485 mm (0.21555-0.21594 in) | 5.445 mm (0.21437 in) | |
| Exhaust | 5.450-5.460 mm (0.21457-0.21496 in) | 5.420 mm (0.21339 in) | ||
| Stem-to-guide clearance | Intake | 0.030-0.055 mm (0.00118-0.00217 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) | 2.0 mm (0.079 in) |
| Exhaust | 1.25-1.55 mm (0.0492-0.0610 in) | 2.0 mm (0.079 in) | ||
| Stem installed height | Intake | 44.0-44.5 mm (1.732-1.752 in) | 44.7 mm (1.760 in) | |
| Exhaust | 44.0-44.5 mm (1.732-1.752 in) | 44.7 mm (1.760 in) | ||
| Valve guide | Installed height | Intake | 15.2-16.2 mm (0.598-0.638 in) | - |
| Exhaust | 15.5-16.5 mm (0.610-0.650 in) | - | ||
| Rocker arm | Arm-to-shaft clearance | Intake | 0.018-0.059 mm (0.00071-0.00232 in) | 0.08 mm (0.0031 in) |
| Exhaust | 0.018-0.056 mm (0.00071-0.00220 in) | 0.08 mm (0.0031 in) |