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Home >> Buick >> 2008 >> Allure CXL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Mechanical - 3.6L (4 Of 5)) >> Off-Vehicle Repair Instructions (2 Of 3) >> Valve Spring Inspection and Measurement >> Measurement Procedure

Measurement Procedure

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    Fig 1: Measuring Valve Spring Tension
    GM1210909Courtesy of GENERAL MOTORS CORP.
  1. Measure the valve spring tension using the J 22738-B  . See Special Tools . Refer to Engine Mechanical Specifications .
  2. If low valve spring load is found, replace the valve springs. DO NOT use shims to increase spring load. The use of shims can cause the valve spring to bottom out before the camshaft lobe is at peak lift.