G424 Service Manual Engine System26
Silent Shaft Mechanism
The silent shaft mechanism function mainly to
eliminate, by the action of the silent shafts
incorporated at both sides of the cylinder block, the
vertical vibromotive force of the engine as well as the
vibromotive moment in the rolling direction, thus
making possible quieter operation of the vehicle.
The two silent shafts are arranged as shown in the
figure below. The right silent shaft rotates in the same
direction as the crankshaft, and the left silent shaft
rotates in the opposites direction. Both of these silent
shafts rotate at speed twice that of the crankshaft.
Right silent shaft is driven by timing belt B, and the left
silent shaft is driven by drive gear.
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