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Home >> Lexus >> 1993 >> SC 400 >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Adjustments >> Dashpot >> Es300, LS400 & SC400
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Es300, LS400 & SC400

  1. Warm engine. Ensure idle speed is correct. See IDLE SPEED & MIXTURE. Remove cap, filter and separator from end of dashpot.
  2. With engine running, use finger to cover hole inside area where separator is normally installed in dashpot. This will fully extend dashpot rod. Check engine speed.
  3. If engine speed is not within specification, rotate screw on dashpot as necessary. See DASHPOT SET SPEED SPECIFICATIONS table. When installing separator, filter and cap, install filter with coarse side facing away from dashpot.
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