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  1. #1
    Join Date
    Jan 2021
    Location
    Columbus, Ohio
    Posts
    387

    Default Help please....have a couple issues

    Well I have a problem and looking for some help.

    Madien voyage this year I took on a little water didn't think anything of it. Found the air vents of my ibs were open and some water came out.
    Day 2- no ballast leaks same amount of water but kids were in and out and we were surfing.
    Day 3- water again, again surfing. Maybe 1 gallon or 2 on the water for 7hrs, more than day 2.
    Day 4 kids everywhere took some water over the bow. In and out doing sports again 7hrs on water. Bilge never ran but maybe 3 gallons. Checked rear and saw some water around the rudder box.

    Check tonight....rudder wobbles and I can hear water/grease mix slop.
    How hard of a job? What parts and where to get parts? Is this rebuildable or replaced?

    Also found the brackets that hold the raw water pump are lose but the bolts are tight. Are they lose on purpose for vibration?
    2015 Moomba Mojo Surf Edition
    4,000lbs
    Manual Flow

  2. #2
    Join Date
    Jan 2021
    Location
    Columbus, Ohio
    Posts
    387

    Default

    Found the whole rudder assembly online.
    There has to be a rebuild kit.

    https://waterskis.com/supra-moomba-rudder-assembly-203/
    2015 Moomba Mojo Surf Edition
    4,000lbs
    Manual Flow

  3. #3
    Join Date
    Jun 2020
    Location
    Reno, NV
    Posts
    471

    Default

    Sounds like warrantee work. Contact your service center.


    Sent from my iPhone using Tapatalk
    2020 SA 450 Wife calls it White Cloud. Said it makes her feel "Classy"
    2017 Sanger V215sx. We call it Viagra because it's the little blue pill that gets everyone up (Sold)

  4. #4
    Join Date
    Mar 2021
    Location
    South Georgia
    Posts
    425

    Default

    This guy seems like he has your same issues
    DIY How to Rebuild a Boat Rudder
    YouTube Bullshitkorner
    Jul 28, 2012
    https://www.google.com/url?sa=t&sour...=1623115022944

    Sent from my moto z4 using Tapatalk
    2021 Moomba Makai
    Black Cherry Metal Flake & Fire Red
    Nibral OJ 15.5x15 Altitude/Wake prop w/1.76 trans v-drive
    Wet Sounds Rev 8's, 10's, & sub

  5. #5
    Join Date
    Jan 2021
    Location
    Columbus, Ohio
    Posts
    387

    Default

    Quote Originally Posted by 2in2out View Post
    Sounds like warrantee work. Contact your service center.


    Sent from my iPhone using Tapatalk
    Warranty from 2015? If that is true then I will contact a dealer but I'm not the first owner.
    2015 Moomba Mojo Surf Edition
    4,000lbs
    Manual Flow

  6. #6
    Join Date
    Jan 2021
    Location
    Columbus, Ohio
    Posts
    387

    Default

    Quote Originally Posted by HFarr View Post
    This guy seems like he has your same issues
    DIY How to Rebuild a Boat Rudder
    YouTube Bullshitkorner
    Jul 28, 2012
    https://www.google.com/url?sa=t&sour...=1623115022944

    Sent from my moto z4 using Tapatalk
    I watched that video. Looks like a 2hr job but no idea where to get parts or if they make a rebuild kit.
    2015 Moomba Mojo Surf Edition
    4,000lbs
    Manual Flow

  7. #7
    Join Date
    Jun 2020
    Location
    Reno, NV
    Posts
    471

    Default

    Quote Originally Posted by Holdmybeer View Post
    Warranty from 2015? If that is true then I will contact a dealer but I'm not the first owner.
    My bad, I got you confused with another member of the forum. I thought you had a new Makai.


    Sent from my iPhone using Tapatalk
    2020 SA 450 Wife calls it White Cloud. Said it makes her feel "Classy"
    2017 Sanger V215sx. We call it Viagra because it's the little blue pill that gets everyone up (Sold)

  8. #8
    Join Date
    Jun 2008
    Location
    Henderson, NV
    Posts
    6,508

    Default

    if it was me, worst case you are out $400 for the new rudder if that's the issue so that being said, I would yank it apart and head down to the local boat shop and talk to the service guys. doesn't have to be a skiers dealer. any reputable repair shop should have worked on inboards. ask them what they see and where to get parts. you might get a contact for parts OR they might suggest for $xx, they rebuild or order parts and sell to you. with as busy as they all are right now, I would be surprised if any balk at helping knowing they have more business than they can support so ordering the rebuild parts from them and diy are saving them some time and making them a few $$.

    if you get apart and that's not the issue it'll at least take that off the table.

    you sure it's not coming from the shaft seal? can't say in all the years on here that I have read about many rebuilding rudder boxes/shafts. shaft seals are much more common to leak and water could be pooling around the rudder box?
    either way good luck.
    '06 Supra Launch 20SSV-gone but never forgotten

  9. #9
    Join Date
    Jan 2021
    Location
    Columbus, Ohio
    Posts
    387

    Default

    Quote Originally Posted by sandm View Post
    if it was me, worst case you are out $400 for the new rudder if that's the issue so that being said, I would yank it apart and head down to the local boat shop and talk to the service guys. doesn't have to be a skiers dealer. any reputable repair shop should have worked on inboards. ask them what they see and where to get parts. you might get a contact for parts OR they might suggest for $xx, they rebuild or order parts and sell to you. with as busy as they all are right now, I would be surprised if any balk at helping knowing they have more business than they can support so ordering the rebuild parts from them and diy are saving them some time and making them a few $$.

    if you get apart and that's not the issue it'll at least take that off the table.

    you sure it's not coming from the shaft seal? can't say in all the years on here that I have read about many rebuilding rudder boxes/shafts. shaft seals are much more common to leak and water could be pooling around the rudder box?
    either way good luck.
    After an evening of searching, I'm not.finding anything for rebuild. Your suggestion is more than likely my route.

    I thought shaft seal first but nothing around the dripless. Had the wife drive while I carefully inspected.
    The rudder is wobbling. Looking at videos I would call it excessive but not horrible. I actually saw and heard water-grease mix come out around the rudder shaft.
    2015 Moomba Mojo Surf Edition
    4,000lbs
    Manual Flow

  10. #10
    Join Date
    Dec 2020
    Location
    Boone NC
    Posts
    267

    Default

    Im not sure about the rudder however 1-3 gallons of water after a full day of water sports doesn't sound to concerning to me? I mean until the bilge kicks in I wouldn't even think twice about it... Am I wrong?
    Josh
    2021 Mojo, Coming april 2021

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