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Home >> Mazda >> 1983 >> B2200 >> Repair and Diagnosis >> Engine Performance >> System >> Air Injection System - CALIF >> Component Testing >> Air Pump
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Air Pump

  1. Start engine and warm to normal operating temperature. Check all hoses and connections for possible leaks. Replace as necessary and/or tighten connections.
  2. Listen for excessive noise at air pump. Replace air pump if noise is excessive. Check drive belt tension. Disconnect hose from air pump outlet and attach a pressure gauge. See Fig 1 .
    Fig 1: Air Pump Pressure Output Check Connect pressure gauge as shown.
    G41682
  3. Connect tachometer to engine and run engine at 1500 RPM. Note pressure reading. Pump must show a pressure of at least 1.0 psi (.07 kg/cm2 ). If less, replace air pump.