Cylinder Head (L15B7: Si)
WARNING: This page is about a different car, the 2021 Honda Civic, 2020 Honda Civic, 2019 Honda Civic, 2018 Honda Civic, and 2017 Honda Civic. However, it is still accessible from the selected car via links, so may be relevant.
| Item |
Measurement |
Qualification |
Standard or New |
Service Limit |
| Head |
Warpage |
|
0.08 mm (0.003 in) max. |
- |
| Height |
|
126.95-127.05 mm (4.9980-5.0020 in) |
- |
| Item |
Measurement |
Qualification |
Standard or New |
Service Limit |
| Camshaft |
End play |
Intake/Exhaust |
0.065-0.215 mm (0.00256-0.00846 in) |
0.415 mm (0.01634 in) |
| Camshaft-to-holder oil clearance (intake) |
No. 1 journal |
0.030-0.069 mm (0.00118-0.00272 in) |
0.120 mm (0.00472 in) |
| No. 2, 3, 4, 5 journals |
0.060-0.099 mm (0.00236-0.00390 in) |
0.150 mm (0.00591 in) |
| Camshaft-to-holder oil clearance (exhaust) |
No. 1, 2 journals |
0.030-0.069 mm (0.00118-0.00272 in) |
0.120 mm (0.00472 in) |
| No. 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 |
33.099 mm (1.30311 in) |
- |
| Exhaust |
33.273 mm (1.30996 in) |
- |
| Valve |
Clearance (cold) |
Intake |
0.21-0.25 mm (0.009 in) |
- |
| Exhaust |
0.25-0.29 mm (0.010-0.011 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 |
0.025-0.050 mm (0.00098-0.00197 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/Exhaust |
1.25-1.55 mm (0.0492-0.0610 in) |
2.00 mm (0.0787 in) |
| Stem installed height |
Intake |
53.40-54.40 mm (2.1024-2.1417 in) |
54.60 mm (2.1496 in) |
| Exhaust |
45.90-46.90 mm (1.8071-1.8465 in) |
47.10 mm (1.8543 in) |
| Valve guide |
Installed height |
Intake |
21.25-21.75 mm (0.8366-0.8563 in) |
- |
| Exhaust |
19.75-20.25 mm (0.7776-0.7972 in) |
- |
| Rocker arm |
Arm-to-shaft clearance |
Intake/Exhaust |
0.018-0.059 mm (0.00071-0.00232 in) |
0.080 mm (0.00315 in) |