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TM 9-8000
Figure 4-30. High Speed Systems.
larger In steps from its end. The vacuum piston, which
metering rod into the jet against spring pressure,
works the same way as the one in paragraph 4-17c,
restricting the flow to the discharge tube. When the load
operates the metering rod. When the engine load Is light
demand Increases, the manifold vacuum decreases,
and manifold vacuum is high, the piston pushes the
Figure 4-31. Vacuum Power Jet.
4-19
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