OEM Chevrolet Avalanche 2500 Rocker Shaft Spring Kit

Chevrolet Avalanche 2500 Rocker Shaft Spring Kit Parts Questions & Experts Answers

• Valve Springs
  12556320
  Q: How to replace the Rocker Shaft Spring Kit and valve stem oil seal on Chevrolet Avalanche 2500?

  A: You should start by removing the valve Rocker Arms and pushrods while making sure the serviced cylinder Piston rests at its lowest point because air pressure during maintenance could turn the engine. Turn the Crankshaft separately with both valves closed before taking out the Spark Plug from inside the cylinder. Insert the Spark Plug port adapter (J 22794) into the Spark Plug hole and block the valves with compressed air pressure. After tapping the valve spring cap gently use the valve spring compressor (J 5892-D) to secure the device to the cylinder head through the valve Rocker Arm nut. Press the valve spring compressor j5892-d unit onto the cylinder and remove valve stem keys without letting cylinder air escape. Open the cylinder head to extract the valve spring compressor (J 5892-D) and then remove the valve spring cap valve spring in that order before taking out the Valve Stem Oil Seal. Apply clean engine oil to the valve stem before putting it in place and apply oil on both sides of the valve guide seal. Additionally, lubricate the rotating components. Put the Valve Stem Oil Seal onto the valve tip and valve guide through the valve stem seal installer tool until it fits fully. Position the valve spring small end side up and put valve spring and valve spring cap into place. Insert the valve spring compressor model j 5892-d into the valve spring and push it down. Add a small piece of clean grease on each valve stem key to hold them before releasing the compressor. Apply air pressure on the valve spring compressor (J 5892-D) tool and then carefully remove it from the valve set. After removing the compressed air from the cylinder you can continue. Put back the valve rocker arms and pushrods after setting the Spark Plug in place.