Remove the camshaft timing tools from the cylinder head exten-
sion.
Withdraw the camshaft (1 a), as far as necessary and remove the
camshaft gears (1b)
Using a suitable drift, extract the inlet side camshaft (1 a) and plug
(1b).
Using suitable drift, extract the exhaust side camshaft (2 a) and oil
seal (2b).
Undo and remove the engine oil lubrication duct plugs (1).