2MERCS 1973 Hydrodyne Twin

Discussion in 'Hydrodyne 18' started by 2MERCS, Jun 29, 2006.

  1. DanielC

    DanielC Established Hydrodyner

    Joined:
    Sep 15, 2006
    Messages:
    118
    Location:
    West Linn, Oregon
    Boat Model and Year:
    1987 Hydrodyne
    Ski Team:
    PDX Water Spectacula
    Re: 1973 Hydrodyne Twin

    Ouch! Better to lose a blade, than a lower unit. For a long time, you could get lower units for the inline 6 merc, because a lot of them around here were converted to jet pumps. Not so much, anymore.
     
  2. 2MERCS

    2MERCS Administrator

    Joined:
    Dec 14, 2004
    Messages:
    794
    Location:
    Eastvale, Ca
    Boat Model and Year:
    1973 Hydrodyne 18 w/Twin 1150 Mercs
    Re: 1973 Hydrodyne Twin

    New props are on tuned up both engines. Found out that Champion does not make the spark plugs any more (Champions were Original Equipment on the Mercs, so I have always put Champions in it) so now I have to use NGK's.

    Monday Bryan and I are going to take it out shoot some video and do some skiing. It is still in the high 70s here sometimes low 80s so it should make for a nice day.

    Daniel <img src="{SMILIES_PATH}/icon_arrow.gif" border="0" alt="party" title="party" />
     
  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
    Re: 1973 Hydrodyne Twin

    Which NGK did they recommend?

    jim
     
  4. 2MERCS

    2MERCS Administrator

    Joined:
    Dec 14, 2004
    Messages:
    794
    Location:
    Eastvale, Ca
    Boat Model and Year:
    1973 Hydrodyne 18 w/Twin 1150 Mercs
    Re: 1973 Hydrodyne Twin

    The BUHW or 2622 both numbers are on the box.

    Daniel
     
  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
    Re: 1973 Hydrodyne Twin

    The BUHW is commonly used in the non electronic V-6 and other mercs. If that plug has issues in your motors, there are alternatives. It's a good plug.

    jim
     
  6. 2MERCS

    2MERCS Administrator

    Joined:
    Dec 14, 2004
    Messages:
    794
    Location:
    Eastvale, Ca
    Boat Model and Year:
    1973 Hydrodyne 18 w/Twin 1150 Mercs
    Re: 1973 Hydrodyne Twin

    We will see how she works, that was the only time I used champion plugs. The way I look at it is champions are lawnmower plugs and nothing else

    I run NGK in most of my other small stuff and OEM plugs in my car and truck

    Daniel
     
  7. 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
    Re: 1973 Hydrodyne Twin

    I use both. I like the champions because they are plated. If you use a good grade of anti-seize on them, it should not matter. I use Champions in the motor on the Dyne. It has never fouled a plug. It is not a highly tuned motor, that is why it is so good for skiing.

    jim
     
  8. 2MERCS

    2MERCS Administrator

    Joined:
    Dec 14, 2004
    Messages:
    794
    Location:
    Eastvale, Ca
    Boat Model and Year:
    1973 Hydrodyne 18 w/Twin 1150 Mercs
    couple more pictures
     

    Attached Files:

  9. 2MERCS

    2MERCS Administrator

    Joined:
    Dec 14, 2004
    Messages:
    794
    Location:
    Eastvale, Ca
    Boat Model and Year:
    1973 Hydrodyne 18 w/Twin 1150 Mercs
    My Dyne

    I don't remember if I posted these pics of when My dyne went through its mid life refurb.

    Daniel
     

    Attached Files:

  10. markbano

    markbano Hydrodyne 18 Specialist

    Joined:
    Nov 4, 2005
    Messages:
    854
    Boat Model and Year:
    1973 Hydrodyne Tournament Skiier
    Re: My Dyne

    That "new dash" picture, with the background, is just as good as it gets.
     

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