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Home >> Saab >> 1984 >> 900 S, 2D Hatchback, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Dashpot System >> Testing
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Dashpot System: Testing

  1. Warm engine to normal operating temperature. Connect tachometer and adjust idling speed to 875 RPM.
  2. Raise engine speed to 3000 RPM and measure time between release of throttle and return to 875 RPM. Deceleration time should be 3-6 seconds.