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Shaft seals

Discussion in 'Props, Shafts & Seals' started by JIM GARDNER, Oct 25, 2026 at 11:18 AM.

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  1. JIM GARDNER, Oct 25, 2026 at 11:18 AM
    #1
    JIM GARDNER

    JIM GARDNER New Member

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    Apr 14, 2023
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    Location:
    Stuart Florida
    Hello, I have a 1998 52' Viking princess with twin 3192 cat 660 hp. The drive shafts seam to be 3 1/4 " and leaking steady flow . Tightened to the max, still flowing. How dangerous to pick out old and repack while in my slip? Getting nervous
  2. Pascal, Oct 25, 2026 at 11:28 AM
    #2
    Pascal

    Pascal Senior Member

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    Miami, FL
    It s usually done in the water. Make sure you have your tools and the packing material ready and precut it. Nothing a healthy bilge pump can’t handle
  3. Capt J, Oct 25, 2026 at 8:51 PM
    #3
    Capt J

    Capt J Senior Member

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    Jul 11, 2005
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    Fort Lauderdale
    What Pascal said, pre-cut them based on the shaft outside of the shaft log, stagger the seams, and use GFO packing.
  4. Pascal, Oct 25, 2026 at 9:23 PM
    #4
    Pascal

    Pascal Senior Member

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    Location:
    Miami, FL
    And make sure you have the flexible corkscrew tool to
    Extract the old packing. Much easier