Made from cast iron, with induction temperating
on the cams, operated directly by a toothed belt.The camshaft oil seal is created at the
front by an oil ring and at the rear by the vacuum pump gasket.
TAPPETS
The tappets are mechanical type, consisting
of a case-hardened and phosphated steel shim (2) in contact with
the cam and used for adjusting the valve clearance.