For Sale 1978 Hydrodyne i/o for sale, not mine but looks to have the right stuff....

Discussion in 'Classified Ads' started by kevinb, Mar 30, 2015.

  1. kevinb

    kevinb Elite Hydrodyner

    Joined:
    Sep 10, 2006
    Messages:
    459
    Location:
    Brookfield, WI
    Boat Model and Year:
    1985 HD 20' I/O 350 (Yep I/O Boat #2 of maybe7?)
    Ski Team:
    NA
  2. kevinb

    kevinb Elite Hydrodyner

    Joined:
    Sep 10, 2006
    Messages:
    459
    Location:
    Brookfield, WI
    Boat Model and Year:
    1985 HD 20' I/O 350 (Yep I/O Boat #2 of maybe7?)
    Ski Team:
    NA
  3. jim

    jim Hydrodyne 18 Specialist

    Joined:
    Jun 14, 2006
    Messages:
    2,321
    Location:
    FL
    Boat Model and Year:
    77 Dyne 18 I/O converted to Outboard
    That is probably not a good idea. It could cause cavitation in the turns.

    jim
     
  4. kevinb

    kevinb Elite Hydrodyner

    Joined:
    Sep 10, 2006
    Messages:
    459
    Location:
    Brookfield, WI
    Boat Model and Year:
    1985 HD 20' I/O 350 (Yep I/O Boat #2 of maybe7?)
    Ski Team:
    NA
    Hey Jim:

    Kinda thought the rear fin was odd as well. Also the planing thingy on the outdrive. U can always reprop for holeshot an do away with this modification. Wonder if this fin was a Hydrodyne install or an add-on by the owner (probably the later). For tracking, the new ski hulls and the Hydrodyne 18 and 20 had the fin positioned well forward of the transom and it does help the driver with direction when under pullout loads. The aft fin doesn't seem to serve a purpose or make sense to me IMO.

    Other than the aforementioned, I kinda like the setup. Looks like it has been well taken care of and very presentable for an i/o (reminds me of my 18 that went to Avon, CO under new ownership). Considering what the going rate is for a new ski boat, this looks like a good starter-kit all-be-it a bit cramped for space with those 1970 living room modular lounge chairs (again, IMHO). Sorry Daniel and others who have this setup.

    Kevin-
     
    Last edited: Apr 4, 2015
  5. jim

    jim Hydrodyne 18 Specialist

    Joined:
    Jun 14, 2006
    Messages:
    2,321
    Location:
    FL
    Boat Model and Year:
    77 Dyne 18 I/O converted to Outboard
    I tried the fin on the outdrive when my boat was an I/O. It put rollers in the wake at low speeds.

    jim
     

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