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Home >> Mazda >> 2013 >> 5 Grand Touring >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical (Service Information MZR 2.5) >> Oil Control Valve (OCV) Inspection >> Spool Valve Operation Inspection

Spool Valve Operation Inspection

  1. Remove the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION .)
  2. Verify that the spool valve in the OCV is in the maximum valve timing retard position as indicated in the figure.
    Fig 1: Identifying Spool Valve In OCV (Maximum Valve Timing Retard Position)
    G08151913
  3. Verify that the battery is fully charged. (See BATTERY RECHARGING [MZR 2.5] .)
  4. Apply battery positive voltage between the OCV terminals and verify that the spool valve operates and moves to the maximum valve timing advance position.
    Fig 2: Identifying Spool Valve Position
    G08151914
    NOTE:
    • When applying battery positive voltage between the OCV terminals, the connection can be either of the following:
      • Positive battery cable to terminal A, negative battery cable to terminal B
      • Positive battery cable to terminal B, negative battery cable to terminal A
    Fig 3: Identifying OCV Connector Terminals
    G08151915
  5. Stop applying battery positive voltage and verify that the spool valve returns to the maximum valve timing retard position.
  6. Install the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION .)