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  1. #1
    Join Date
    May 2017
    Location
    Alberta, Canada
    Posts
    304

    Default Shaft Seal Drip Rate (video)

    I was out for this first time this year and took a short video of the shaft seal dripping into the bilge. I was hoping to get some feedback on the actual drip rate and whether this looks like it's dripping too much? Any opinion is welcome, let me know if you can't access the video.

    https://photos.app.goo.gl/TZJQOaP0vUfjDFVR2
    2021 Mojo, 6.2L Raptor 400/1.76, Acme 3407 15.5x13, G6, Flow3, +6500 lbs ballast
    2005 Mobius LSV (sold)
    Windermere Lake, B.C., 2800' Elevation
    2021 Mojo Mods

  2. #2
    Join Date
    Jan 2018
    Posts
    2

    Default

    Quote Originally Posted by Hayden View Post
    I was out for this first time this year and took a short video of the shaft seal dripping into the bilge. I was hoping to get some feedback on the actual drip rate and whether this looks like it's dripping too much? Any opinion is welcome, let me know if you can't access the video.

    https://photos.app.goo.gl/TZJQOaP0vUfjDFVR2
    That is way to much water dripping, should be 1-5 drops every minute. Time to either tighten or repack and you could replace with the newer dripless shaft seal.

  3. #3
    Join Date
    Mar 2003
    Location
    Springfield Missouri
    Posts
    3,392

    Default

    Stay away from the wax cord and get either graphite or Teflon cord. No dripping is necessary. I had a graphite cord in mine since 2003 and adjusted once.

    https://forum.moomba.com/showthread....t=packing+cord
    1998 Mobius
    310 HP PCM
    SOLD

  4. #4
    Join Date
    May 2016
    Location
    West Milwaukee, WI
    Posts
    283

    Default

    At that rate I'd bet you're taking on too much water to leave the boat in the water for extended periods. A few drips per minute is ideal with a wax seal to ensure it doesn't overheat.

    If you can snug up the packing nut a bit (hand tighten, IIRC), then you're good to go. That's all I had to do on mine. You might be in need of replacement packing though, unless the previous owner just didn't maintain it and it simply loosened up.
    2004 Mobius LS - hooked on footin'
    Former tow: 1986 Chaparral 178 XL, 90hp Merc
    First tow: 197x Glasspar Citation, 135hp Merc

  5. #5
    Join Date
    May 2017
    Location
    Alberta, Canada
    Posts
    304

    Default

    I assume there could also be leaking coming from the tubing that's tied down by the hose clamps? May need to tighten those as well?

    This video looks like it's inline with what you've suggested Darter:

    https://www.youtube.com/watch?v=NBDKDy9NO9g
    Last edited by Hayden; 05-17-2018 at 04:32 PM.
    2021 Mojo, 6.2L Raptor 400/1.76, Acme 3407 15.5x13, G6, Flow3, +6500 lbs ballast
    2005 Mobius LSV (sold)
    Windermere Lake, B.C., 2800' Elevation
    2021 Mojo Mods

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