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  1. #1
    Join Date
    Jul 2014
    Posts
    11

    Default 2001 Mobius V Swim Platform Fix

    We have had our 2001 Mobius V since 2001. Love the boat. Surfing is the activity of choice as wakeboard get is becoming too hard on body parts. A couple of years ago the bottom bolts on the swim platform pulled out. As others have written, the platform bottom bolts are lag bolts screws into the transom structure. Over time the threds strip and the bolts can fall out. There is no access to this area of the transom as it is beneath the interior floor surface. My first attempt at a fix was to cast new threads by using chopped fiberglass and stainless lag bolts. the idea is to recast the threads by pushing the chopped glass and resin in the original holes. Then spray no stick cooking spray on the bolt threads and screwing them in. 24 hrs later remove the bolts and the threads are formed. This worked for about 1 season. The I put brass thread inserts in the lower holes. This lasted for about 1 more season. So this time I went at it a more intrusive way. This should be the permanent fix.

    First my friend and I cut an access ports on the port and starboard side of the boat flooring.
    A1B4ADF3-38F6-45AB-9945-18E84A8E5E09.jpg
    C7FF6CAD-CD52-48E5-B224-8B5316A7BF61.jpg

    Then we removed the foam using a wood hole paddle bit.
    2E20E7C4-2F65-4D0E-A225-D6D4960D0030.jpg

    Using aluminum plates we used stainless bolts and nuts for the lower bracket holes. We used loctite on the nuts.

    05AA5FF8-AEF7-4026-B3CA-2DE18A746096.jpg
    Last edited by Chru; 03-24-2019 at 05:49 PM.
    Chru, 2001 Mobius V, Indmar Assault TBI.

  2. #2
    Join Date
    Jul 2014
    Posts
    11

    Default

    We attached the swim platform brackets using 3M 5200 Marine Adheasive.

    Attachment 28242

    Then we sprayed ‘Great Stuff’ foam from Home Depot in the area we removed the factory foam. Hint, this stuff expands so spray a little and wait for it to expand. After the foam had set we glassed in the ports we had cut.

    Attachment 28240

    Attachment 28241
    Attached Images Attached Images
    Last edited by Chru; 03-24-2019 at 06:15 PM.
    Chru, 2001 Mobius V, Indmar Assault TBI.

  3. #3
    Join Date
    Jul 2014
    Posts
    11

    Default

    We also used the same plates in the upper bolts.
    Attachment 28243
    Attachment 28241
    Chru, 2001 Mobius V, Indmar Assault TBI.

  4. #4
    Join Date
    Jul 2014
    Posts
    11

    Default

    86AA5061-8967-4221-A464-1D138E199023.jpg
    Pics not attaching as intended.
    Chru, 2001 Mobius V, Indmar Assault TBI.

  5. #5
    Join Date
    Jul 2014
    Posts
    11

    Default

    Chru, 2001 Mobius V, Indmar Assault TBI.

  6. #6
    Join Date
    Jan 2008
    Location
    Tallahassee, FL
    Posts
    14,066

    Default

    Quote Originally Posted by Chru View Post
    86AA5061-8967-4221-A464-1D138E199023.jpg
    Pics not attaching as intended.
    And stop calling me "Shirley".

    https://www.youtube.com/watch?v=wlpxl0WzaXg
    My Mom said I'm not allowed to get wet!
    2008 LSV (sold)
    2000 Outback LS (sold)
    LLTR!!!!!!!!



  7. #7
    Join Date
    Jun 2007
    Location
    Vancouver, WA
    Posts
    5,138

    Default

    Nicely done. Am I the only one who appreciates this thread?

    Filed away for future use - may need better access to those pics in original size...
    The years have been kind, it's the weekends that have done the damage.

    2001 MobiusV - Loaded with Ballast, Exile, Blood, Sweat & Beers

  8. #8
    Join Date
    Sep 2016
    Location
    Elmira, NY
    Posts
    44

    Default

    I sent a PM to him. I'm going to add some glass to reinforce my transom this spring too
    -Scott

    2000 Moomba Mobius V

  9. #9
    Join Date
    Jul 2014
    Posts
    11

    Default

    Hey Berger

    Yeah not sure why the pics are not full size. Any ideas?
    Chru, 2001 Mobius V, Indmar Assault TBI.

  10. #10
    Join Date
    Jul 2014
    Posts
    11

    Default

    Scott check your email.
    Chru, 2001 Mobius V, Indmar Assault TBI.

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