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Results 1 to 9 of 9
  1. #1

    Default mercury trim tab anode positioning

    i have a merc 90 .1984. no anode on it....boat glasstron gt 150.boat turns way to the right.where do i position the trim anode.right or left.

  2. #2
    Join Date
    Aug 2006
    Location
    SW Ohio, USA
    Posts
    10,329

    Default Re: mercury trim tab anode positioning

    Think of it as a rudder...turn the rudder HANDLE to starboard (right) and the rudder moves to port (left)...boat turns to port.
    Fix minor things (replace wear items for preventative maintenance.) that cause major problems before they break.

  3. #3

    Default Re: mercury trim tab anode positioning

    thanks ,so all i gotta do it set it a little to the right and it should go a little more left....i got it with out an anode it it pulled right a lot...thanks again..andre.

  4. #4

    Default Re: mercury trim tab anode positioning

    i might be wrong but after thinking about it ,i gotta position it left,facing rear of boat to straighten out natural turn of propeller.....am i right.

  5. #5
    Join Date
    Aug 2006
    Location
    SW Ohio, USA
    Posts
    10,329

    Default Re: mercury trim tab anode positioning

    now you got it.
    Fix minor things (replace wear items for preventative maintenance.) that cause major problems before they break.

  6. #6
    Join Date
    Sep 2003
    Location
    New Tripoli, PA, USA!
    Posts
    12,659

    Default Re: mercury trim tab anode positioning

    Note that the trim tab only works correctly in a narrow speed range. Above that speed the steering will still pull one way, and below that the other way. The trick is to dail it in for your prefrred cruising speed, which is best done by experimentation.

    Jeff

  7. #7
    Join Date
    May 2010
    Location
    Sebastian ,Fl
    Posts
    1,782

    Default Re: mercury trim tab anode positioning

    From the rear.If it pulls right then turn it right.
    boats . net worst place to buy parts.
    Get towing insurance.Great investment.
    88 Bayliner with twin 85's

  8. #8

    Default Re: mercury trim tab anode positioning

    ok now i got to get a new bolt to go to trim tab.how long what thread,metric ?.i tried and went thru tons of em .it stripped out.so i start over with a new trim tab and bolt .what boltnd thread size a is the problem

  9. #9
    Join Date
    Sep 2003
    Location
    New Tripoli, PA, USA!
    Posts
    12,659

    Default Re: mercury trim tab anode positioning

    Probably 3/8 UNC.

    Jeff

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