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Home >> Mazda >> 2012 >> 6 i Touring >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Mechanical (Service Information MZI 3.7 V6)) >> Oil Control Valve (OCV) Inspection >> Spool Valve Operation Inspection

Spool Valve Operation Inspection

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  1. Disconnect the negative battery cable.
  2. Remove the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION .)
  3. Verify that the spool valve in the OCV is in the maximum valve timing retard position as indicated in the figure.
    Fig 1: Spool Valve In OCV Is In Maximum Valve Timing Retard Position
    G08140286
    • If not as specified, replace the OCV.
  4. Verify that the battery is fully charged.
    • If not as specified, recharge the battery.
  5. 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: Inspecting Spool Valve Operates And Moves To Maximum Valve Timing Advance Position
    G08140287
    • If not as specified, replace the OCV.
    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
  6. Stop applying battery positive voltage and verify that the spool valve returns to the maximum valve timing retard position.
  7. Install in the reverse order of removal.
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