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Mercruiser trim is all the way up, but won't go down.

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  • Mercruiser trim is all the way up, but won't go down.

    I have a 1979 Mercruiser 228. After running all day today I came back to wash down. The trim went all the way up, but now won't go down. The "automatic stop" has not worked on the trim for years, and the indicator hardly works as well. When I hit the trim up buttons, I can hear the motor run, but nothing when I try to trim down. Please let me know where I should start to investigate.

    Thanks in advance.


  • #2
    Re: Mercruiser trim is all the way up, but won't go down.

    Originally posted by MelLandry View Post
    I have a 1979 Mercruiser 228. After running all day today I came back to wash down. The trim went all the way up, but now won't go down. The "automatic stop" has not worked on the trim for years, and the indicator hardly works as well. When I hit the trim up buttons, I can hear the motor run, but nothing when I try to trim down. Please let me know where I should start to investigate.

    Thanks in advance.
    Here try this and see if it helps solve the problem. May be the down solenoid switch.


    http://www.boatfix.com/merc/Techbk/97/97hs6.pdf

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    • #3
      Re: Mercruiser trim is all the way up, but won't go down.

      Start by cleaning all of the electrical connections.
      1987 Wellcraft 23' NovaXL
      Mercruiser 260/Alpha I

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      • #4
        Re: Mercruiser trim is all the way up, but won't go down.

        Originally posted by MelLandry View Post
        When I hit the trim up buttons, I can hear the motor run, but nothing when I try to trim down.
        The fact that you can hear the motor running would rule out an electrical issue. It may just be stuck. Try standing on it while someone trims it down.

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        • #5
          Re: Mercruiser trim is all the way up, but won't go down.

          try checking the fluid level , that was what was wrong with mine , i had to stand on it to get it down and while it was down i filed it up and now its fine .

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          • #6
            Re: Mercruiser trim is all the way up, but won't go down.

            I had a bad ground to pump. Would go up but not down, good luck!

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            • #7
              Sign up today
              Re: Mercruiser trim is all the way up, but won't go down.

              Go up, and then quickly down. Often works for me.
              Baba-buoy.

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