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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 199 (Engine Mechanical - 3.6L (LF4) - Repair Instructions (4 Of 4)) >> Repair Instructions >> Valve Spring Inspection and Measurement >> Measurement Procedure

Measurement Procedure

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  1. GM1210909

    Measure the valve spring tension using the EN-22738-B  Valve Spring Tester. 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.
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