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Home >> Chevrolet >> 2012 >> Cruze Eco, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 1.8L (LUW)) >> Repair Instructions - On Vehicle >> Valve Stem Oil Seal and Valve Spring Replacement >> Valve Stem Oil Seal Installation

Valve Stem Oil Seal Installation

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Intake Valve Stem Oil Seal Installation Tool
    GM2373172Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Lubricate the NEW valve stem oil seal with clean engine oil.

  1. Install the NEW valve stem oil seal, using the EN-958  installer (1).
  2. Loosely install the valve spring and the valve spring retainer.
    3. Fig 2: Valve Spring Compressor
    GM2725894Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    The valve stem keys must correctly seat in the valve spring cap. Engine damage may occur by not installing properly.

  3. Using the EN-51717-2  compressor (4), push down the valve spring retainer (1) and compress the valve spring (3) until the valve keys (2) can be inserted. Carefully insert the valve keys then, so that they are proper installed to the valve stem grooves.
  4. Carefully release the tension from the EN-50717-2  compressor.
  5. Inspect the valve keys and valve spring retainer for proper seat.
  6. Repeat the procedure with the remaining valves and cylinders. Transfer the EN-50717-1  stands and the EN-51717-2  compressor as needed.
  7. Take care that air pressure is always applied to the combustion chamber of the treated cylinder.
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