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Home >> Buick >> 2015 >> Verano Premium, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Mechanical - 2.4L (Lea)) >> Repair Instructions - On Vehicle >> Valve Stem Oil Seal and Valve Spring Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Remove the starter. Refer to Starter Replacement (2.4L LEA) .
  2. Remove the exhaust camshaft. Refer to Exhaust Camshaft Replacement .
  3. Remove the intake camshaft. Refer to Intake Camshaft Replacement .
  4. Install the EN-43653  holding tool.
  5. Remove the valve rocker arms. Refer to Valve Rocker Arm Replacement .
  6. Remove the spark plugs. Refer to Spark Plug Replacement .
    7. Fig 1: Valve Spring Compressor
    GM2557079Courtesy of GENERAL MOTORS COMPANY
  7. Install the EN-43649  compressor (1) to the cylinder head.
  8. Install an air hose adapter into the spark plug hole.
  9. Attach an air hose to the adapter and pressurize the cylinder to 6.9 bar (100 psi).
  10. Compress the valve spring using the valve spring compressor (2).
    11. Fig 2: Valve Spring, Keys & Retainer
    GM2557126Courtesy of GENERAL MOTORS COMPANY
  11. Remove the valve spring keys (1)
  12. Remove the valve spring retainer (2) and the valve spring (3).
    13. Fig 3: Valve Seal & Removal Tool
    GM2557082Courtesy of GENERAL MOTORS COMPANY
  13. Use the EN-36017  remover (2) to remove the valve seal (1).
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