MarkBano Hydrodyne 20 Restoration Project

Discussion in 'Restoration Projects & Questions' started by markbano, Oct 2, 2012.

  1. markbano

    markbano Hydrodyne 18 Specialist

    Joined:
    Nov 4, 2005
    Messages:
    854
    Boat Model and Year:
    1973 Hydrodyne Tournament Skiier
    MarkBano Restoration project No. 2.

    Really, it will be a partial restoration, because the boat does not need a transom or floor. I bought a 1988 Hydrodyne 20 from the Shawano Ski Sharks ski team last month. The boat has the widened transom. It got a new floor and a new transom in 2007 by Tom Miller, at which point it was refurbished with new carpet, rigging, etc. Shawano is replacing this boat with a second Dyna-Ski.

    Attached is a picture of the boat. It was rigged with 2012 ETec 150's. I did not buy the motors. Just the boat. Enjoy this picture - because the boat looks a lot worse now that I've been at it for a couple weeks. I almost hesitate to post current pictures because I took a nice boat and gutted it. But - that's how one does a restoration, after all.....

    I am keeping my Hydrodyne 18. It just finished its 6th summer and is still looking and performing as it did when I finished the restoration in the spring of 2007. We have a big family and we can easily run two boats from our beach on a busy skiing day - so the twin rig will be a nice addition.

    I will keep everyone posted on my progress - perhaps not with quite as much detail as I did with my Hydrodyne 18...
     

    Attached Files:

  2. markbano

    markbano Hydrodyne 18 Specialist

    Joined:
    Nov 4, 2005
    Messages:
    854
    Boat Model and Year:
    1973 Hydrodyne Tournament Skiier
    Attached are some pictures of the boat and rigging now.....

    So far, we removed the decals, removed the step pads and glue, removed the rope guard, cables, wires, gauges, fuel lines, oil tanks, battery boxes, hydraulic steering, handles, cleats, lights, and other rigging. We removed the fuel tank and the 3 large sand bags at the very bow of the boat. that was a job. All of the snaps for the cover have been removed (getting rid of those). The seats have been removed, and the rubber and aluminum moldings inside the boat. Much time has been spent with abrasives and acetone removing glue from decals and step pads. The rubrail has been removed.

    The boat has newer BRP rigging and contols, and Seastar twin rig steering. All of this rigging has been labeled, removed, cleaned, tie wrapped and boxed.

    A new rubrail is on order. It is TACO rubrail kit No. V11-2423BBK50-2. Comes with screws, end caps and insert. This is a good part number to have on the website, because it took very careful measurements and a lot of research to track down the right rubrail for this boat. I have ordered new period-appropriate Hydrodyne decals and some of the hardware.

    Fiberglass work will include filling in the openings on the dash panel on either side of the steering column and fiilling access holes that I will no longer use. I am also going to grind down and re-glass the front of the splash well because this is direct support for the tow pole and has a crack in it. I order my supplies from LBI and I use Vinylester products for superior strength and bonding.

    The boat will be sanded down and finished work will be done on all the small stuff. The boat will be primed and painted with a single stage urethane. I am going to rebuild the seat frames and have the seats reaplolstered. The boat will get new carpet and and hardware. The BRP Dual binnacle throttle is almost new. I will reuse that as well as the hydraulic steering - also almost new - and the BRP primary gauges. I'm pretty sure I can re-use the Livorsi GPS speedometer. I have not tested it yet.

    I hope to have the boat ready for paint by November. Stay tuned for more details!

    Markbano
     

    Attached Files:

  3. stapletm

    stapletm Established Hydrodyner

    Joined:
    Nov 7, 2009
    Messages:
    95
    Boat Model and Year:
    1970, 18' Outboard, 1974 18" Outboard
    And so it begins. Nice start Mark. What are your power options are you considering?
     
  4. markbano

    markbano Hydrodyne 18 Specialist

    Joined:
    Nov 4, 2005
    Messages:
    854
    Boat Model and Year:
    1973 Hydrodyne Tournament Skiier
    Still considering my options. I will twin rig the boat with Evinrude Etec engines. I already have BRP controls, wiring and gauges.

    My best guess right now is that I will be looking for a pair of lightly used 250HOs from a ski team.
     
  5. RiverRat

    RiverRat Hydrodyne 18 Specialist

    Joined:
    Sep 30, 2006
    Messages:
    501
    Location:
    Shoreview, MN
    Boat Model and Year:
    1971 Baby Dyne
    Ski Team:
    Twin Cities River Rats
    Just so you know, twin 150's will pull up to 24 people (12 couples) off the dock, or 10-12 dudes out of the water on a mix of 1 and 2 skis, along with giving those 10 guys 40 mph, and easily toss your spotter into the back of the boat.... possibly out the back.

    Would big block twins be fun? he|| yeah! Would small blocks suffice? Absolutely! But it's your money, and I love to see some big block twins! And I know a guy that spends some time on your lake that can teach you to drive it. You met him at least once already.
     
  6. markbano

    markbano Hydrodyne 18 Specialist

    Joined:
    Nov 4, 2005
    Messages:
    854
    Boat Model and Year:
    1973 Hydrodyne Tournament Skiier
    Hey there RiverRat - long time.....

    I know that 150's would probably get the job done for my purposes. Shawano Ski Sharks had 200's on the boat until last year, when they moved to 150's. They told me that the boat was fine with 150's but they much preferred the 200's. When I put a 225 Optimax on my Hydrodyne 18 some folks felt that was much more than I would ever need. Well - this summer I had a couple of groups I couldn't pull out of the water. Granted, I could probably have done it with a harness off the transom and a shorter prop.

    What you have to remember is that I am not pulling a bunch of experienced show skiers off a dock. I'm pulling sometimes big goups of both experienced and experienced skiers out of deep water. My sons and nephews also want to do deep water slalom starts together in big groups. That demands a lot more from the boat than pulling people of docks. I don't really care if the boat is nimble. For driving fun I have the 18. I'm looking for a waterski tractor.

    And... yes.... it is my personality to overdo everything. I like the way two big blocks look on the back of one of these boats. I'll admit it. It is most certainly a cooler look on the boat. Everyone knows that. :good: Remember - I have to trailer this boat back and forth from northern WI. It must look bad a#% on the trailer, too. :eek:

    My plan - which my wife does not yet know about - is to eventually set up a triple rig. That will probably be a Dyna-Ski. My engine of choice for that setup would probably be triple 150's. I think that is proving to be the ideal all-around setup on that boat. By that time, I may be out of money, out one nice wife.. and living in the boat.... In such case I will have rear mounted fuel so that I can sleep under the forward deck. I'm thinking ahead ;)
     
  7. stapletm

    stapletm Established Hydrodyner

    Joined:
    Nov 7, 2009
    Messages:
    95
    Boat Model and Year:
    1970, 18' Outboard, 1974 18" Outboard
    LOL aside (although that was pretty funny), wouldn't that tripple setup give you less power with more weight than your proposed doble setup? Or am I missing the point that this would be for the tripple $bad A$$ apeal?
     
  8. markbano

    markbano Hydrodyne 18 Specialist

    Joined:
    Nov 4, 2005
    Messages:
    854
    Boat Model and Year:
    1973 Hydrodyne Tournament Skiier
    The only thing you might be leaving out is the fact of having a third screw in the water.

    A triple 150 with 450hp total will pull much better than a twin rigged with 250s, even though total horsepower might be more on the twin rig.

    BTW - transom weight is less of a concern on the Dyna-Ski. That boat is 9" longer, with the driver/spotter 18" further forward. I think there are teams running Triple 150's on Dyna-Ski boats that have little or no extra balast weight put in the bow. Not absolutely sure of that - but I think that is what I've been told by knowledgeable sources.
     
  9. stapletm

    stapletm Established Hydrodyner

    Joined:
    Nov 7, 2009
    Messages:
    95
    Boat Model and Year:
    1970, 18' Outboard, 1974 18" Outboard
    Makes sence, I figured shortening double props could compensate.
     
  10. markbano

    markbano Hydrodyne 18 Specialist

    Joined:
    Nov 4, 2005
    Messages:
    854
    Boat Model and Year:
    1973 Hydrodyne Tournament Skiier
    I talked to one driver at Nationals who said he used to drive a twin 225 boat and this year moved to a triple 150. He said that there is no comparison between the two. The triple far outpulls the twin. I think an extra screw in the water is a huge difference. I'm no expert by any means. I talked to a lot of drivers at Nationals, though - and I spend a lot of time talking to a few folks who are among the most knowledgeable in this business and they pretty much say the same thing.

    I guess we wondered off-topic a bit... Bound to happen now and then. :popcorn:
     

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