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150hp Merc Tilt Ram

Discussion in 'The Outboard Church' started by Croc, Jan 9, 2012.

  1. Croc

    Croc Member

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    G,Day
    Help (please), i have a 1989 150hp merc, main tilt ram was leaking so i wanted to rekit it. Could not get top pin out, seems to have a small pin cross ways through the centre, not sure if this is pin, dowell or bolt with head broken off. Decided to remove bottom end instead, removed side rams with barrel and found a round cap with springs at bottom of rod, does this unscrew, its bloody tight? Can anyone tell me where i can download diagram of this ram and how it comes apart.
    Thanks for your time.
    Croc
     
  2. RiverDave

    RiverDave In it to win it

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    I am not sure if I can find a diagram for you to download but tomorrow I'll try to find someone with an answer..
     
  3. Croc

    Croc Member

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    Thanks mate
     
  4. 138

    138 Well-Known Member

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    I will look if I have that book I will get back to you.
     
  5. Croc

    Croc Member

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    Cheers mate
     
  6. tankman

    tankman Well-Known Member

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    The easiest way to remoe the small pin is to break it (it is very soft) and meant to be replaced. drive out the large pin that goes left to right with a brass or some kind of softer material punch. Any merc dealers should have replacement small pins in stock. Hope this helps
     
  7. Croc

    Croc Member

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    Thanks Tankman, tried a pin punch on the little pin and it felt pretty hard, will try giving the L-R pin a good wack and see what happens.
    Cheers Croc
     
  8. 138

    138 Well-Known Member

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    May need a few good wacks with something softer than ss but Tankman is right. I Looked at the book and he is spot on.

    Welcome to RDP Tankman.
     
  9. Croc

    Croc Member

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    Thanks 138
     
  10. RiverDave

    RiverDave In it to win it

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    Welcome to RDP Tankman. :)

    RD
     
  11. Luv2gofast

    Luv2gofast Well-Known Member

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    The most common failure in those are the seals on the teeter-totter which is in the pump assembly. They are square seals but can be replaced with o-rings. Check the position of the teeter-totter before you remove it so you can get it to the same place when you put the new seals on it. The pressure valves in the ram are not suposed to be dissembled and very seldom have a problem.
     
  12. Luv2gofast

    Luv2gofast Well-Known Member

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    Also forgot...you don't have to take the pin out to get the pump off. Just remove the right side clamp bracket and then the pump. You have to support the motor while it's off of course.
     

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