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Dashpot System: Adjustment: Dashpot

  1. Warm engine to normal operating temperature. Check ignition timing and idle speed. Disconnect and plug vacuum hoses to ignition distributor and EGR system.
  2. Rotate throttle lever and check that dashpot rod strikes stop at 2400-2600 RPM for non-turbo, 2100-2300 RPM for Turbo models. If rod does not strike stop at specified RPM, adjust dashpot and repeat test.
  3. Raise engine speed to 3000 RPM and measure return time to idle. If less than 3 seconds, loosen lock nut and move dashpot closer to throttle stop. If more than 6 seconds, loosen lock nut and move dashpot away from throttle stop.
  4. Tighten lock nut. Reconnect vacuum hoses to ignition distributor and EGR system. Repeat deceleration time test.
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