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Positive Crankcase Ventilation|Description and Operation|Page 4979 > < Positive Crankcase Ventilation|Description and Operation
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Fig. 11 Moderate Intake Manifold Vacuum--Maximum Vapor Flow

During periods of moderate intake manifold vacuum the plunger is only pulled part way back from the inlet. This results in maximum vapor flow
through the valve (Fig. 11).

Positive Crankcase Ventilation|Description and Operation|Page 4979 > < Positive Crankcase Ventilation|Description and Operation