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Home >> Nissan-Datsun >> 1978 >> F10 2D Hatchback >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Thermostatic Air Cleaner >> Testing >> Idle COMPENSATOR

Idle COMPENSATOR

  1. Disconnect hose leading to idle compensator, and connect an external vacuum source to idle compensator hose. Apply vacuum to hose to check for excessive leakage. If leakage is excessive, replace idle compensator as an assembly.
    NOTE: There are 2 idle compensator ports. One must be plugged while checking the other to prevent leakage.
  2. Remove idle compensator from air cleaner. Place idle compensator and a thermometer in water. Heat water while watching temperature. At 140-158°F (60-70°C) one of the compensator valves should start opening and be fully open at 158°F (70°C). The other valve should start opening at 158-176°F (70-80°C) and be fully open at 176°F (80°C). If either valve does not operate within specifications, replace idle compensator as an assembly.
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