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Home >> Cadillac >> 2016 >> SRX Performance, AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 3.0L (LFW) Or 3.6L (LFX) - Repair Instructions - Off Vehicle >> Repair Instructions - Off Vehicle >> Valve Spring Inspection and Measurement >> Measurement Procedure

Measurement Procedure

    Fig 1: Measuring Valve Spring Tension
    GM1210909Courtesy of GENERAL MOTORS COMPANY
  1. Measure the valve spring tension using the EN 22738-B  tester. Refer to Engine Mechanical Specifications (LFX)Engine Mechanical Specifications (LFW) .
  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.
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