OEM GMC Sierra 3500 Valve Stem Oil Seal

GMC Sierra 3500 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 Sierra 3500?

  A: To do the valve guide sealing work and change the valve guide seal along with valve spring the technician needs three tools: valve spring compressor part j 5892-d, Spark Plug port adapter part j 22794, and valve seal installer tool j 43105. Start by taking out the valve Rocker Arms together with pushrods before making sure the Piston inside the serviced cylinder remains at its lowest point to stop engine movement during air pressure application. Adjust the Crankshaft position until sealing both valves before extracting the Spark Plug from the cylinder chamber. Fit the Spark Plug port adapter (J 22794) into the Spark Plug hole and block the valves using a compressed air source. Use the socked valve spring compressor j 5892-d tool to set up the valves and turn the valve Rocker Arm bolt to fix it in place. Push the valve spring into place through the valve spring compressor (J 5892-D) tool then take out the valve stem keys so the compressed cylinder air stays in place. Take out the cylinder head valve spring compressor unit j 5892-d from the cylinder head then detach the valve spring cap, valve spring, and valve guide seal in that order. Use clean engine oil to lubricate the valve stem and valve guide seal. Apply engine oil onto the rotators as well. To properly place the valve guide seal, insert the valve seal installer j 43105 and push the valve tip into the valve guide until the seal is fully seated. Insert the valve spring small end first, then put on the valve spring cap. Insert the valve springs' small ends up and squeeze the assembly with the valve spring compressor (J 5892-D). Install the valve stem keys after applying small amounts of clean grease and secure them with new valve retainers (J 66029). Remove the valve spring compressor tool (J 5892-D) from the valve section by carefully lifting it while you take off compressed air from the cylinder. Reinsert the Spark Plug afterward you reattach both the valve rocker arms and pushrods.