power tilt intermittent problem ??

  • cdm
    Oronoco, SE. MN.
    Posts: 771
    March 17, 2014 at 7:59 am #1355651

    What to do , I have a 1996 Merc. 40 hp outboard that the power trim works sometimes somtimes it just makes a hi pitch whinny noise like its low on fluid,but it is not low but then sometimes it will take off and lift. Any ideas ???

    gundez-71
    South Minnesota
    Posts: 675
    March 17, 2014 at 8:15 am #1396747

    Sounds like low oil. Also could be a lot of water in the system. Notice any leaks??

    Gundy

    cdm
    Oronoco, SE. MN.
    Posts: 771
    March 17, 2014 at 9:02 am #1396764

    It isnt low its running out when i remove the plug. But it is a funcky color !

    doubleshot
    Brooklyn Park, MN
    Posts: 277
    March 17, 2014 at 11:40 am #1396827

    I had a similar thing happen in my old boat and it was a relay switch that was going bad.
    replaced that and it was back to perfect.

    Could be something to look into.

    **Note: I am far from mechanical, so I’m sure relay switch is not the correct term

    Bassn Dan
    Posts: 977
    March 17, 2014 at 11:56 am #1396830

    Quote:

    What to do , I have a 1996 Merc. 40 hp outboard that the power trim works sometimes somtimes it just makes a hi pitch whinny noise like its low on fluid,but it is not low but then sometimes it will take off and lift. Any ideas ???

    With it working intermittently it’s likely that the tilt solenoid/relay is going bad. You can test it by switching the wires from the up to the down and down to up soleniods to see if it works up but not down.

    Best to change it before it goes totally dead, and I always change both the up and the down solenoid when I do it because the other one will probably be going soon.

    The whinny noisy could be air in the system. Try running the tilt all the way up and all the way down and the noise will probably stop.

    Dan

    cdm
    Oronoco, SE. MN.
    Posts: 771
    March 17, 2014 at 12:21 pm #1396846

    Thanks,but if it were a bad relay it probalbly wouldnt make any noise would it ? It does try to lift but it just makes that whinning noise while im holding in the lift button ????

    trumar
    Rochester, Mn
    Posts: 5967
    March 17, 2014 at 2:44 pm #1396922

    Quote:

    It isnt low its running out when i remove the plug. But it is a funcky color !

    Drain and refill with the right fluid and retest .. if still the same you pump is bad.

    The whining noise you here is most like the motor running.

    JMHO Jeff

    cdm
    Oronoco, SE. MN.
    Posts: 771
    March 17, 2014 at 5:43 pm #1396962

    How do you drain it?u

    puddlepounder
    Cove Bay Mille Lacs lake MN
    Posts: 1814
    March 18, 2014 at 10:19 am #1397129

    See if you can find anything on YouTube. You most likely have a bad seal on the piston. You should be able to find a YouTube video on how to replace the seal also. Good luck with your project.

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