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Vacuum Test (Mechanical)

  1. Reconnect fuel line to carburetor inlet and check for leaks.
  2. Disconnect hose at inlet side of fuel pump. Raise end of hose so fuel will not run out.
  3. Connect vacuum gauge to pump inlet with short length of hose.
  4. Start engine and allow to idle. Check vacuum level. Gauge should read at least 10 in. Hg (Chrysler); If not, replace pump.
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