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225 V6 Timing Cover Seal Upgrade

Discussion in 'Early CJ5 and CJ6 Tech' started by DanStew, Jan 2, 2022.

  1. Jan 2, 2022
    DanStew

    DanStew Preowned Merkin salesman Staff Member

    Lexington, South...
    Joined:
    Sep 22, 2002
    Messages:
    4,585
    I ended up ordering a new timing cover to replace my cracked on. The new cover uses a new style rubber seal for the harmonic balancer group. i was cleaning up the harmonic balancer and flange and noticed the seal area that will contact the new seal has a rough part that has the texture if the original rope seal. What do i need to do use this harmonic balancer/pully unit to work with the new seal. speedi sleeve? Sand down the rough part on the flange? Get a new flange if available?
     
    DanStew, Jan 2, 2022
    #1
  2. Jan 2, 2022
    DanStew

    DanStew Preowned Merkin salesman Staff Member

    Lexington, South...
    Joined:
    Sep 22, 2002
    Messages:
    4,585
    crank1.jpeg

    Here is the surface I speak of
     
    DanStew, Jan 2, 2022
    #2
  3. Jan 2, 2022
    Rich M.

    Rich M. Shoe salesman 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Maryland
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    Mar 23, 2008
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    2,186
    Iirc the seal rides inboard on the smooth surface. The ridges are actually there to whip/ shed the oil away from the seal.
     
    Rich M., Jan 2, 2022
    #3
  4. Jan 4, 2022
    Keys5a

    Keys5a Sponsor

    Florida Keys
    Joined:
    Jan 23, 2014
    Messages:
    4,187
    The original rope seal rides on the flat area to the left (in your photo) of the knurled area. I would take crocus cloth and polish that surface. The neoprene lip seal is a big improvement. As mentioned, the knurls pull the oil away from the seal with the engine running.
    -Donny
     
    Keys5a, Jan 4, 2022
    #4
    DanStew and timgr like this.
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