Land Rover Workshop Service and Repair Manuals

Camshaft: Specifications
Valve Timing

4.0 Litre Engine

VALVE TIMING - 4.0 Litre Engine 

Intake:

Opens  .........................................................................................................................................................................................................  28° BTDC
Closes  ........................................................................................................................................................................................................  77° ABDC
Duration  ...............................................................................................................................................................................................................  285°
Valve peak  ...............................................................................................................................................................................................  108° ATDC

Exhaust:

Opens  .........................................................................................................................................................................................................  66° BBDC
Closes  .........................................................................................................................................................................................................  39° ATDC
Duration  ...............................................................................................................................................................................................................  285°
Valve peak  ...............................................................................................................................................................................................  110° BTDC

4.6 Litre Engine

VALVE TIMING 

Intake:

Opens  .........................................................................................................................................................................................................  14° BTDC
Closes  ........................................................................................................................................................................................................  70° ABDC
Duration  ...............................................................................................................................................................................................................  264°
Valve peak  ...............................................................................................................................................................................................  114° ATDC

Exhaust:

Opens  .........................................................................................................................................................................................................  64° BBDC
Closes  .........................................................................................................................................................................................................  20° ATDC
Duration  ...............................................................................................................................................................................................................  264°
Valve peak  ...............................................................................................................................................................................................  116° BTDC