See also:

Deceleratio sensitive valve (all models with conventional braking system) - removal and refitting
Caution: Refer to the precautions in Section 1. Removal 1 The deceleration sensitive valve is located on the left-hand side of the engine compartment (see illustrations). 23.1a Early type decele ...

Cylinder head - removal and refitting (engine removed)
Note: The cylinder head bolts must always be renewed after slackening, and a new cylinder head gasket and camshaft cover gasket must be used on refitting. If the engine has recently run, the cylin ...

Cylinder head and pistons - decarbonising
1 With the cylinder head removed as described in Section 7, the carbon deposits should be removed from the combustion surfaces using a blunt scraper. Take great care as the head is of light alloy ...