184000261 - INTRODUCTION - TIMING SYSTEM
SPECIFICATIONS
Two cast iron camshafts, in a camshaft housing; driven by a belt and sprockets.COMPOSITION
There are the same number of suitably positioned cams as there are valves to operate.At the front, the exhaust shaft is prepared for the fitting of the toothed pulley, through which the movement of the crankshaft is received, by means of a suitably tensioned belt. (see 'Repair Procedures').A pair of gears, fitted at the rear of the shafts, allows the transfer of the power from the exhaust shaft to the inlet shaft.1, Camshaft oil seal2, Camshaft3, Tappet4, Upper shim5, Spring6, Lower shim7, Cotters8, Oil seal9, Valve guide10, Valve
HYDRAULIC TAPPETS
The hydraulic tappets, fitted on this version, automatically cancel the valve clearance during engine operation, with the advantage of reducing:
- maintenance operations
- engine noise.