GM Lumina/Grand Prix/Cutlass Supreme/Regal 1988-1996

Valve Stem Seals

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REPLACEMENT



This procedure is for removing the seals with the head installed on the vehicle. If the head is removed, refer to the valve removal and installation procedure.

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the rocker arm cover as previously outlined in this section.
  4.  
  5. Remove the rocker arm assembly at the valve being serviced.
  6.  
  7. Remove the spark plug at the cylinder being serviced.
  8.  
  9. On DOHC engines, remove the camshaft over the valve being serviced. -23590 onto the spark plug hole. Apply compressed air to the cylinder to keep the valve in the closed position. B or equivalent, remove the valve keepers, cap, keepers and seal.
  10.  

To install:
  1. Position the valve seal over the end of the valve.
  2.  
  3. Install the spring, cap and keepers using the spring compressor. Carefully release the spring compressor and make sure the keepers are in the proper position.
  4.  
  5. Release the air pressure from the cylinder and remove the spark plug port adapter.
  6.  
  7. Install the spark plug and wire.
  8.  
  9. Install the rocker arm assembly as previously outlined in this section. Reconnect the negative battery cable. Start the engine and check for oil leaks.
  10.  

 
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