See also:

Cylinder head - removal and refitting
Removal Note: On HCS engines, cylinder head bolts may be used a total of three times (including initial fit) and must be suitably marked to indicate each removal operation. A new cylinder head ga ...

Engine oil and filter renewal (Every 6000 miles (10 000 km) or 6 months)
1 Frequent oil and filter changes are the most important preventative maintenance procedures which can be undertaken by the DIY owner. As engine oil ages, it becomes diluted and contaminated, whic ...

Engine - complete dismantling
1 The need for dismantling will have been dictated by wear or noise in most cases. Although there is no reason why only partial dismantling cannot be carried out to renew such items as the oil pum ...