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Home >> Chevrolet >> 2017 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 64 (Engine Mechanical - 1.6L (LWC)) >> Repair Instructions - On Vehicle >> Valve Stem Oil Seal and Valve Spring Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
  1. GM3216205
    NOTE:

    Be careful, that the valve stem oil seals do not deform while the installation procedure.

    Install a NEW valve stem oil seal (2). Use a suitable tool (1).

  2. GM3216197
    NOTE:

    Examine that the valve springs and the valve spring retainers will be installed in their original position.

    Install the exhaust valve spring (1), or the intake valve spring (3) and the upper valve spring retainer (2). Which valve spring is installed, depends on the installation progress.

  3. GM3216196
    NOTE:

    The demounting piece must be applied parallel to the valve spring retainers to prevent damage to the tools or the valve train components.

    Scale the valve spring (3), including the upper valve spring retainer (2) down and install the valve keys (1). Use a suitable tool and a bit of grease for the installation.

  4. Repeat the procedure on the remaining 3 valves from cylinder 1.
  5. Transfer the EN-51150  compression/ pressure adapter to cylinder 4.
    1. Interrupt the compressed air feed.
    2. Remove the adapter from cylinder 1.
    3. Install the adapter to cylinder 4.
    4. Apply compressed air to cylinder 4.
  6. Transfer the EN-51511  plug to the fuel injector bore of cylinder 4.
  7. Repeat the valve stem oil seal remove and installation procedure for cylinder 4.
  8. Interrupt the compressed air feed.
  9. GM3216241

    Turn the crankshaft clockwise 180 degrees to the ignition TDC position of cylinder 2, hold the camshaft timing chain (1) with 2 hands.

  10. Transfer the EN-51150  compression/ pressure adapter from cylinder 4 to cylinder 2.
  11. Repeat the valve stem oil seal remove and installation procedure for cylinder 2 and cylinder 3.
  12. Remove the EN-51150  compression/pressure adapter.
  13. Remove the EN-49074  valve spring compressor including the EN-49155  demounting piece from the cylinder head.
  14. Remove the EN-51511  plug from the fuel injector bore.
  15. Hydraulic Valve Lash Adjuster Arm - Install - Hydraulic Valve Lash Adjuster Arm Replacement .
  16. Spark Plug - Install - Spark Plug Replacement .
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