2014 Jeep Wrangler JK Factory Service Manual 09 - Engine, 3.0L Gasoline

SEAL(S), Valve Guide

DESCRIPTION

The valve stem oil seals (1) are made of elastomer over-molded steel in a non-integrated type guide mounted configuration. The seal is not held in place by the valve spring (2). The valve stem seals are not reusable if removed from the valve guides (3), they must be replaced. Always coat the valve seals with clean engine oil before installing the valves.

REMOVAL

NOTE:

If the springs are to be reused, identify their positions so that they can be reassembled into their original locations. Number 5 cylinder exhaust valve spring shown, all other valve springs similar.

  1. Remove the valve spring(s) (2) (Refer to 09 - Engine/Cylinder Head/SPRING(S) , Valve - Removal).

    NOTE:

    Number 5 cylinder exhaust valve guide seal shown, all other valve guide seals similar.


    2.  
  2. Remove the valve guide seal (1) using a valve seal tool (2). Discard the removed seal.

    NOTE:

    Number 5 cylinder exhaust valve spring seat shown, all other valve spring seats similar.


    3.  
  3. If required, remove the valve spring seat (1).

    4.  
  4. If required, remove the valve(s) (Refer to 09 - Engine/Cylinder Head/VALVES, Intake and Exhaust - Removal) .

    5.  

INSTALLATION

  1. If removed, install the valve(s) (Refer to 09 - Engine/Cylinder Head/VALVES, Intake and Exhaust - Installation) .

    NOTE:

    Reassemble the valves into their original locations. If the valves or valve seats have been refinished, verify that the valve stem tip height is within specification (Refer to 09 - Engine - Specifications) . Number 5 cylinder exhaust valve shown, all other valves similar.


    2.  
  2. If removed, install the spring seat (1) over the valve guide.

    3.  
  3. Apply engine oil to the lip of the valve guide seal (3). Install the valve guide seal (3) over the valve stem. Using an appropriate driver (1), push the seal firmly and squarely over the valve guide. Do Not Force the seal against the top of guide.

    NOTE:

    Ensure that the garter spring (2) is intact around the top of the valve guide seal (3). Number 5 cylinder exhaust valve guide seal shown, all other valves similar.


    NOTE:

    If the valve springs are being reused, reassemble them into their original locations. Number 5 cylinder exhaust valve spring shown, all other valves similar.


    4.  
  4. Install the valve spring(s) (2) (Refer to 09 - Engine/Cylinder Head/SPRING(S) , Valve - Installation).

    5.