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Function
The camshaft (5) controls opening and closing of the intake and exhaust valves. The motion applied from the
cams of the camshaft to actuate the valves is transferred by swing followers (3, 4), pushrods (6) and rocker
arms (8, 11) onto the valve bridges (13) of the intake and exhaust valves. The valves open against spring
pressure and close with the pressure exerted by the valve springs.
52 | Series 4000 Engines | MS15065/01E 2019-01
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