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Home >> Mitsubishi >> 2014 >> Lancer ES Sportback >> Repair and Diagnosis >> External Pages >> Different car >> Section 53 (Engine Overhaul - 3.0L) >> Cylinder Head And Valves >> Inspection >> Valve Spring

Valve Spring

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. Measure the free height of the spring. If it is less than the limit, replace.

    Standard value: 

    Intake 63.77 mm (2.5111 inches) 

    Exhaust 59.90 mm (2.358 inches) 

    Minimum limit: 

    Intake 62.77 mm (2.471 inches) 

    Exhaust 58.90 mm (2.319 inches) 

  2. Measure the squareness of the spring. If it exceeds the limit, replace.

    Standard value: 2 degrees or less 

    Limit: 4 degrees 

  3. Valve spring load/installed height.

    Standard value: 245.2 N (55.13 lb)/49.2 mm (1.94 in) 

    Fig 1: Identifying Free Height Of Spring
    G09663856