Cylinder Head and Valve Train
WARNING: This page is about a different car, the 2015 Jaguar XF, 2014 Jaguar XF, and 2013 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.
| ITEM | SPECIFICATION |
|---|---|
| Cylinder head maximum permitted warp (flatness specification) | 0.2 mm (0.008 in) |
| Valve guide inner diameter (mm) | 5.51 ± 0.01 |
| Intake valve effective length (mm) (tip to gauge line) | 117.58 ± 0.10 |
| Exhaust valve effective length (mm) (tip to gauge line) | 94.75 ± 0.10 |
| Valve stem to guide clearance intake diametrical (mm) | 0.042 - 0.057 |
| Valve stem to guide clearance exhaust diametrical (mm) | 0.03 - 0.065 |
| Valve head diameter intake (mm) | 31.6-Overall diameter- 33 ± 0.10 |
| Valve head diameter exhaust (mm) | 26-Overall diameter-28 ± 0.10 |
| Intake valve face angle (degrees) | 44.875 ± 0.125 |
| Exhaust valve face angle (degrees) | 44° 52' 30" ± 7' 30" |
| Valve stem diameter intake (mm) | 5.4705 ± 0.0075 |
| Valve stem diameter exhaust (mm) | 5.4525 ± 0.0075 |
| Valve spring free length (mm) - inlet | 46.1 |
| Valve spring free length (mm) - exhaust | 46.1 |
| Valve spring installed height (mm) - inlet | 36.78 |
| Valve spring installed height (mm) - exhaust | 37.07 |
| Camshaft lobe lift intake (mm) | 10 |
| Camshaft lobe lift exhaust (mm) | 9.36 |
| Camshaft journal to cylinder head bearing surface clearance diametrical (mm) | 0.025 - 0.065 |
| Camshaft journal diameter - all positions | 26.965 ± 0.01 |
| Bearing diameter - all positions | 27.01 ± 0.01 |
| Camshaft journal maximum run out limit (mm) | |
| Camshaft journals to end journals | 0.03 |
| Camshaft journals to adjacent journals | 0.015 |
| Camshaft journal maximum out of round (mm) - all journals | 0.005 |
| Crankshaft end play (mm) | 0.15 - 0.35 |