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Home >> Opel >> 1972 >> Opel 1.1L Eng, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Ignition System >> OPEL Engine Modification 1970-72 >> Testing >> Testing Thermostatically Controlled Air Cleaner >> Checking Timing
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Checking Timing

  1. Connect timing light and tachometer. Both vacuum advance and retard hoses must be disconnected and plugged. Start engine, set idle speed to specifications listed below:
    Engine Timing RPM
    1970 1.1 Liter 500
    1970 1.9 Liter 700
    1971 1.1 Liter 950
    1971-72 1.9 Liter 900
    Fig 1: Ignition Timing Mark (1.1 Engine)
    G09309384Courtesy of NOT AVAILABLE
  2. Rotate distributor as necessary to align timing marks. Timing marks on 1.1 liter engines are a projection in rear edge of crankshaft pulley and a projection on timing chain cover. Timing mark on 1.9 liter engine is a steel ball embedded in flywheel and a pointer in a window in right flywheel housing.
    Fig 2: Ignition Timing Mark (1.9 Engine)
    G09309385Courtesy of NOT AVAILABLE