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  • Need help... Mark 20h

    I am not sure if this is the proper place to post this, I have scouring the internet for help on this and I am hoping someone here can guide me in the right direction. My father recently passed away, and he used to tell me about how bad ass this racing motor was when it was together. It is a Mercury Mark 20h, I know nothing about boat motors, and am trying to figure out what it might be worth. It is not in the greatest of shape and is definitely missing some parts. It is not complete, looks like the top end is missing but the lower end is in tact. Any help would be appreciated, and if you guys would like some pictures I can snap some tomorrow. Thank you

  • #2
    Post some pictures... including the serial number plate... it is green on the front of the motor.
    sigpic

    Dean F. Hobart

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    • #3
      I might be interested in it if pricing doesn’t get carried away.

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      • #4
        Here they know quite a bit about Mercs. Value of the parts and their condition is what you have.

        http://johnsoldmercurysite.com/phpBB3/index.php


        "Keep Move'n" life is catching up!
        No man's life, liberty or property are safe while the legislature is in session.

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        • #5
          Sorry to hear that your father recently passed away. My sincere condolences. Was he a former boat racer? If so, what's his name and when did he race. Sincerely,
          Don Graham PS: I raced from 1957 through 1963. My 1st motor was a merc 20H.

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          • #6
            https://drive.google.com/file/d/1qSM...ew?usp=sharing
            https://drive.google.com/file/d/1XKj...ew?usp=sharing

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            • #7
              Wow... It is a Mark 20H B Stock Mercury racing motor... From 1954 to 1959... After 1959 the 20H had a conversion tuned exhaust tower housing. It looks to be in really ‘rough’ shape.

              Does it turn over? With no flywheel or cowlings my estimate would be between $500 and $1000.... That might be high. If it does not turn over my opinion would be in the $500 area..... there are parts there that could be used.
              sigpic

              Dean F. Hobart

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              • #8
                I believe it does turn over - My dad used to run it years ago, and it got put into storage... also long story short someone started messing with it that shouldnt have, which is why it is in the shape it is in. I believe I have the "mercury" side panels here as well (I know nothing about boat motors) is that what you are talking about when you say cowlings?

                Thank you for any help you guys can give me, I do need to get rid of it (at a fair price).

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                • #9
                  I’d be interested possibly the complete motor, or just the tower and gear case. Actually, could you get some closer pics of the motor from all angles if it’s not too much hassle.

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                  • #10
                    Originally posted by Jha707 View Post
                    I believe it does turn over - My dad used to run it years ago, and it got put into storage... also long story short someone started messing with it that shouldnt have, which is why it is in the shape it is in. I believe I have the "mercury" side panels here as well (I know nothing about boat motors) is that what you are talking about when you say cowlings?

                    Thank you for any help you guys can give me, I do need to get rid of it (at a fair price).
                    Yes, those Mercury Side Panels are what I was referring to.... Originally, they were Green and Gold. It also looks like the carburetor is missing ... is it missing or just the camera angle? I would suggest selling the complete motor...If you don’t you could end up with something you cannot get rid of.

                    Best Wishes in your quest.
                    sigpic

                    Dean F. Hobart

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                    • #11
                      pretty rough condition on the outer but the insides of the power head and the gear case are what will set the price? This site had some 20H's complete for pricing as restored and unrestored but complete:

                      http://store.aeroliner-boats.com/epa...gories/Engines

                      In your case much less due to unknown innards condition and missing parts.
                      "Keep Move'n" life is catching up!
                      No man's life, liberty or property are safe while the legislature is in session.

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                      • #12
                        Yes, write the VanWeele brothers, Alan or David... There is a contact on their web site above. They can give you an excellent value..... They might even be willing to buy it.
                        sigpic

                        Dean F. Hobart

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                        • #13
                          here are some more pictures. I believe the cowlings are in storage in my garage, but there are some things stacked in front of the cabinet I need to get into. I am not sure if the carb is in there as well. Here are more pictures.

                          https://drive.google.com/file/d/1qtl...ew?usp=sharing
                          https://drive.google.com/file/d/11Wl...ew?usp=sharing, https://drive.google.com/file/d/1ThV...ew?usp=sharing, https://drive.google.com/file/d/1Zpn...ew?usp=sharing

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