Chevrolet Equinox Service Manual: Valve Spring Inspection and Measurement Valvetrain Valve Actuating Assembly
Special Tools
EN 22738-BValve Spring Tester
For equivalent regional tools, refer toSpecial Tools.
Inspection ProcedureClean the valve springs in solvent.Warning:Refer toSafety Glasses Warning.
Dry the valve springs with compressed air.Inspect the valve springs for broken coils or coilends.Measurement Procedure
Measure the valve spring tension using theEN 22738-Btester. Refer toEngine Mechanical Specifications.If low valve spring load is found, replace the valve springs.DO NOT use shims to increase spring load. The use of shims cancause the valve spring to bottom out before the camshaft lobe is atpeak lift.
Cylinder Head Cleaning and Inspection (LAF, LEA, or LUK) Engine Block Cylinder Head
Special ToolsEN 22738-BValve Spring TesterEN-28410Gasket RemoverGE 7872Magnetic Base Dial IndicatorFor equivalent regional tools, refer toSpecial Tools.Valve Cleaning and InspectionNote:Do not use a w ...
Crankcase Ventilation System Inspection/Diagnosis (Without Turbocharger) Emissions PCV
Special ToolsEN 23951Valve ManometerRemove the oil level indicator. Install aEN 23951valve manometeror equivalent.Start the engine.Check for slight vacuum. The vacuum level should be less than3.377-kP ...
Other materials:
Evaporative Emission System Cleaning Engine Control
Special Tools J 41413-200 Evaporative Emissions System TesterFor equivalent regional tools, refer toSpecial Tools.Inspection ProcedureCaution:Use the Evaporative Emission (EVAP) System Tester (EEST) GE41413-A in order to provide a clean, dry, low pressure nitrogen gassource. Do not substitute any ot ...
