OEM 2002 Buick Century Valve Stem Oil Seal

2002 Buick Century Parts Questions & Experts Answers

• Q: What tools are required to service and repair the valve guide seal, replace the valve stem oil seal, and valve spring on 2002 Buick Century?

  A: These tools are essential to work on valve guides: Spark Plug port adapter (J 22794) and valve spring compressor (J 38606). Start engine rotation until you reach top dead center position to keep the valve safe from entering the cylinder space. Before handling the Spark Plug you need to loosen it and clean its seating area while making sure the engine has cooled down. Put the Spark Plug port adapter (J 22794) on first then position the valve by blowing compressed air through it. You can disconnect the Rocker Arm before attaching the valve spring compressor (J 38606) to squeeze out the valve locks, valve cap, and valve spring. Check the valve spring condition and replace it if needed before removing its oil seal. Set the Valve Stem Oil Seal in place using a matching driver tool as you push it on top of the valve guide boss. Set the valve spring and valve lock in place while compressing the valve with the special tool (J 38606) then seal the valve caps with grease or oil if necessary. Release the spring while checking that the valve locks are securely positioned. Mount the Rocker Arm then let the air out while putting in the Spark Plug port adapter before inserting the Spark Plug.