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Home >> Mazda >> 1985 >> RX-7 S >> Repair and Diagnosis >> Engine Performance >> System >> Deceleration Control System - EFI >> Component Testing >> Dashpot Check
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Dashpot Check

  1. Check that dashpot rod does not keep throttle lever from returning to idle stop. Quickly operate throttle lever fully and make sure dashpot rod extends quickly.
  2. Release throttle lever and make sure throttle lever returns slowly to idle position after it has touched dashpot rod. Connect tachometer to engine. Start engine and warm to operating temperature. Make sure engine operates at specified idle speed.
  3. Operate throttle lever until it is away from dashpot rod. Slowly decrease engine speed and check speed at which throttle lever just touches dashpot rod. It should be 2350-2650 RPM. If not, loosen lock nut and turn dashpot diaphragm to adjust engine speed.
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