OEM Cadillac STS Rocker Shaft Spring Kit

Cadillac STS Rocker Shaft Spring Kit Parts and Q&A

• Valve Springs
  12565199
  Q: How to replace the Rocker Shaft Spring Kit and Valve Stem Oil Seal on the left side on Cadillac STS?

  A:

  The first step when replacing the valve stem oil seal and valve spring of the left side involves removing the Starter motor. The Camshaft timing system must be completely disassembled and rebuilt when the Crankshaft starts rotating because the en 46106 flywheel holding tool is missing. Insert the en 46106 holding tool to stop Crankshaft rotation before starting the replacement steps. Take out the camshafts and Rocker Arms. Connect the j 39313 Spark Plug port adapter to the required cylinder then link it to compressed air through that port adapter. Position and securely fasten the en 46110 tool above the target cylinder and adjust its nut. Loosen the valve keepers while turning the valve nut. You can then take off the valve spring retainer and spring from their positions. You can use en 46116 to both extract and place valve stem seals. First install the valve stem seal using the en 46116 tool then put on the valve spring and retainer. Place the en 46110 above the valve spring and fix its nut tight while adding the valve spring keepers. Unplug the en 46110 and separate the j 39313 from compressed air after removing it. After installing the spark plugs, put back all rocker arms and camshafts then pull out the en 46106 before fitting the Starter motor.