OEM GMC Yukon XL 2500 Valve Stem Oil Seal

GMC Yukon XL 2500 Valve Stem Oil Seal Parts Questions & Experts Answers

• Valve Seals
  12482063
  Q: What tools are required to service and repair the valve guide seal, replace the valve stem oil seal, and valve spring on GMC Yukon XL 2500?

  A: The valve guide seal repair work demands Spark Plug port adapter (J22794) and valve spring compressor (J38606) along with the required valvespring and the Valve Stem Oil Seal to be replaced. First remove the Rocker Arm then disconnect the Spark Plug wire by twisting its boot 1/2 turn and gently pulling from the boot end. At room temperature unfasten each Spark Plug 1 or 2 turns from its Cylinder Head position before using brush or air clearance to cleanse the plug area. Install the Spark Plug port adapter j22794 into the Spark Plug opening then connect air hose tubes and use compressed air to hold the engine valves in position. Squeeze the valve spring with the valve spring compressor (J38606) product. Pull off both valve stem keys while controlling the valve spring tension then remove the compressor. Then take off the valve spring cap, valve spring and valve guide seal and shim (1, 5). Clean the area where the valve spring and shim attach and apply oil to the valve guide and valve guide seal before you put in the valve guide seal and shim (1, 5). After that, set the valve spring and valve spring cap into place. Put the valve keys with grease into the valve stem grooves and run the valve spring compressor (J38606) to compress the valve spring before installing each piece. Slowly open valve spring pressure while both valve keys should maintain their position before removing the compressor. And when necessary tap the end of the valve stem to help key seating. Extract the Spark Plug port adapter (J22794) out from the Spark Plug port. Begin the Spark Plug manually and fix it tightly at 15 nm (11 ft. Lbs.). Put the Spark Plug Wires onto their designated connections at the Ignition Coil and Spark Plug. Secure any loose boot parts by pressing on each bracket end and reattaching them properly before adding the Rocker Arm.