Is My Motor Mounted Too Deep???

Discussion in 'Washington State' started by t_dub, Apr 20, 2012.

  1. t_dub
    Offline

    i've got twin rooster tails that come off my extended transom from either side of the motor. nothing i do trim-wise does anything to help. seems like the cavitation plate is buried too deep when up on plane and i'm not getting what i would expect fuel mileage wise. would bumping the motor up one hole help or do I have something else going on?

    sorry about the link. the video was bigger than the max allowed and i have no clue how to shrink it down.

    http://www.youtube.com/watch?v=bFJEPVIJUns&feature=youtu.be

    Thanks!
  2. archy99
    Offline

    I have the same issue...and plan to raise mine a notch or two. It was a stab in the dark as far as running depth, as my boat had never floated. The brackets can throw things off a bit too, making it hard to pre-determine where it needs to sit.
  3. goatram
    Online

    yup to low need to raise it up a hole or two. you should be able to see your Cavitation plate when running.
  4. Odin7
    Offline

    My motor was too low. Raised it.

    HUGE improvement.

    P.S. HUGE improvement.
  5. Hawaiian Style
    Offline

    Need's to go up for sure
  6. wood2turn
    Offline


    X2
  7. t_dub
    Offline

    that's what i was thinking, but nice to have an overwhelming confirmation.

    thanks fellas!
  8. elim
    Offline

    Is there no other reason a boat would do this?What is the down side to having the motor to low other than probable poor fuel economy.
  9. goatram
    Online

    Slower speed as well as the poor mileage.

    Only reasons this would happen is something is wrong with the hull or something dragging on the motor.
  10. elim
    Offline

    What kind of improvement did you get?Speed, mileage?


  11. elim
    Offline

    how much of a difference will a low motor make?My motor shoots the same roster tails and I am deciding on raising it or not.Problem is I am out of holes so I need to re drill my bracket and need to know some real numbers to figure if it is worth it or not.thanks for any help
  12. Plus1
    Offline

    naw,
    you just snagged a water sprinkler
  13. trackerputnam
    Offline

    Having the motor at the right can and will make a huge difference. If it is too low it is like dragging aroundsome anchors behind you. Rather than drilling new holes, maybe a "jack Plate?"
  14. elim
    Offline

    You mean like a power jacking plate?I would think those would be pretty pricey for larger motors.
  15. elim
    Offline

    I see you can get quite a few manual jacking plates.Any idea which is best for a 225 etec?I like this idea way better than re drilling.This way I can play with it until I get it just right.
  16. goatram
    Online

  17. Spicy Tuna
    Offline

    Cavitation plate should be aligned with the bottom of the boat. Had to learn that with my Stratos. Little jackplate tweaks and the thing sails!
  18. t_dub
    Offline

    had the motor moved up just one notch. them rooster tails are pretty much all gone and the boat feels like it's running smoother through the water, but maybe that part's all in my head. only had a chance to run it by myself, so kinda hard to stick my head over the transom and see what's really going on. definite improvement though.

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