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Home >> Buick >> 2018 >> Encore Preferred, AWD >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Engine Mechanical - 1.4L (LUV) >> Repair Instructions - On Vehicle >> Valve Stem Oil Seal and Valve Spring Replacement >> Intake Valve Stem Oil Seal Removal Cylinder 1

Intake Valve Stem Oil Seal Removal Cylinder 1

  1. GM2373165

    Prepare the 2 50717  supports (1) for the installation by tightening the support head in a centered position to the rail with the bolt (2).

  2. GM2373157

    Install the EN-6086-5  mounting shaft (3) along with the 2 EN-6086-6  supports (4) and the EN-6086 - 8  handle to the cylinder head.

    3. NOTE:

    The demounting piece must point to the intake side.

  3. Install the EN-6086 - 7  lever (2) along with the EN-6086 - 11  demounting piece (1) to the mounting shaft.
  4. Position the mounting shaft centered above the spark plug bores and tighten the 4 fasteners (6).
  5. Install the EN-6086-15  pneumatic adapter (5) to the spark plug screw bore of cylinder 1.
  6. Apply air pressure to cylinder 1.
  7. GM2373167

    Remove the valve keys, valve spring retainers and the valve springs of the intake valves of cylinder 1, using the following procedure:

      CAUTION:

      The demounting piece part of EN-6086 Basic Kit, Spring and Wedge Replacer must be applied parallel to the valve retainers in order to prevent damage to the tools or the valve train components. If demounting piece is not applied parallel it could cause damage to the valve stem keys or the valve retainers.

    1. Apply tension to the valve springs, using the EN-6086 - 7  lever (1) and the EN-6086 - 11  demounting piece (2) until the valve keys are discharged from spring load and remove the valve keys.
    2. Release tension from the valve springs and remove the valve spring retainers and the valve springs.
  8. GM2373171

    Remove the intake valve stem oil seals (2) of cylinder 1, using the EN-840  pliers (1).

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