OEM 2002 GMC Safari Valve Stem Oil Seal

2002 GMC Safari Parts Questions & Experts Answers

• Q: How to service and repair the Valve Stem Oil Seal on 2002 GMC Safari?

  A: You need to start your work by taking off the valve Rocker Arm cover then the needed valve rocker arms and spark plugs. Place the Spark Plug port adapter (J22794) into the Spark Plug hole and add a shop air supply hose to keep valve positions fixed. Insert a flat washer onto the bolt you removed from the valve Rocker Arm and reinstall it into the bolt hole of the valve spring that must be detached. Keep safe while using the valve spring compressor because the compressed valve springs generate strong spring tension that will forcefully eject springs if handled improperly. Use the valve spring compressor to press down on the valve Rocker Arm bolt by inserting its slotted end under the washer. Steady pressure should be applied until you can reach the valve keys for removal. When you work with valve spring compressor j38606 make sure its jaws clasp the valve spring totally because slipping can leave marks; buy new valve springs if needed. Take out the valve keys while lowering the valve spring tension then unfasten j5892-d or j38606 and the valve spring cap before taking out the valve spring. Carefully put valve stem oil seals, valve spring, and valve spring cap in place on the valve stem while pressing the valve spring using the j5892-d. Replace the j5892-d with the j38606 tool if it cannot fit safely. Insert the valve stem keys into the upper groove after applying grease to secure them in position. Slowly let valve spring pressure out and double-check the key position before tapping the valve stem with a plastic-faced hammer. Finish by replacing the j22794 component then putting back the spark plugs together with valve rocker arms and the valve Rocker Arm cover.