Removing and installing or replacing all valves (B48 and B46 engine) (Cooper S and John Cooper Works)
Special tools required:
- 11 4 480
Preliminary work needed:
- Remove CYLINDER HEAD .
- Remove EXHAUST CAMSHAFT .
- Remove INTAKE CAMSHAFT .
- Remove ROCKER ARMS .
- Remove VALVE SPRINGS .
- Remove VALVE STEM SEALS .
Arrangement:
- valve
- Valve stem seal with spring cup, bottom
- Valve spring
- Top spring cup
- Valve keys
If the valves are to be reused, set them down in special tool 11 4 480 in a tidy and orderly fashion.
Required follow-up work:
- Install VALVE STEM SEALS .
- Install VALVE SPRINGS .
- Install ROCKER ARM .
- Install INTAKE CAMSHAFT .
- Install EXHAUST CAMSHAFT .
- Install the CYLINDER HEAD .