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Thread: Mercury Mark 40-H

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    BoatRacingFacts VIP Aeroliner's Avatar
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    Default Mercury Mark 40-H

    Well it all started by buying a whole bunch of engines from Charlie Miller up in Canada. My brother David and I drove up to his place to pick up a truck load of engines. In the lot was a Mark 40-H that really needed to be restored. Well we stopped at Doug Kays in Detroit on the way back and dropped the 4 four bangers off for restoration. All the engines were appart except for the 40-H and Doug asked what do you want done with them. Well I just told him to put them together. About a month later Doug called and said I would like to start on the 40-H also and being he had a all of the 44's in the works for me I told him to go ahead with it also. Well before I knew what happened and a lot of discussion we now have this wild red engine. I think its might be the only 44 cubic inch Mark 40-H with power dome heads. Yes that right its now 44 cubic inches with mercury 500 cylinder heads and a Brinkmen style port job. Hope you like the photos. We ran it last Saturday and hope to be on the water the first warm day in Detroit. Oh through in some others that are compete and some in works.

    Alan
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    Last edited by Ron Hill; 01-18-2013 at 12:18 PM.

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    Sam Cullis Mark75H's Avatar
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    Quote Originally Posted by Aeroliner View Post
    I think its the only 44 cubic inch mark 40-H. Yes that right its now 44 cubic inches
    Probably not the only 44 inch Mark40H ... some alky racers ran 44 and 49 ci Mk40H's in E back in the 1950's. Hu Entrop may have been one of them.
    Since 1925, about 150 different racing outboards have been made.


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    Team Member Silas_53A's Avatar
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    I sat there are stared at those engines for about 20 minutes. They are beautiful, just beautiful. One of these days I need to get my hands on one of these 30h/40h/55h's for my DSR. I plan on restoring it back to its race days, but getting an old merc will be a while. (we all know how plans go...)

    I bet they didn't even look that good straight from Mercury. Nice work.


    <-----

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    BoatRacingFacts VIP Aeroliner's Avatar
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    Default More engines

    Thankyou for your kind words. If you would like to view some of our other boats and engines at www.Aeroliner-Boats.com

    Alan

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    Team Member Bill Gohr's Avatar
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    Those engines are beautiful, very nice work, I really like the purple dyno, how much HP will it hold?

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    BoatRacingFacts VIP Aeroliner's Avatar
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    Default Dyno has a few issues

    Quote Originally Posted by Bill Gohr View Post
    Those engines are beautiful, very nice work, I really like the purple dyno, how much HP will it hold?

    Right now we have a temperature issue were working out. Hope to have that resolved soon. Also when the loading device is utilized all the water leaves the unit in .2574 seconds as recorded on the data system.

    Alan

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    BoatRacingFacts VIP Aeroliner's Avatar
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    Default Purple dyno used again

    Quote Originally Posted by Bill Gohr View Post
    Those engines are beautiful, very nice work, I really like the purple dyno, how much HP will it hold?
    Ran three engens this weekend to get the assembly grease out of them and check for fuel or water leaks. Two D's and a C. All three of the engines fired within a few pulls and no leaks were found. Doug Kay dose an exceptional job with these restorations and rebuild. All that was needed was a little time to clear out the assembly lube and then an idle mixture adjustment. Love the sound of a strong Merc when you light them up. Hope you like the photos.

    Alan
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    BoatRacingFacts VIP Aeroliner's Avatar
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    Default Kf-9

    I have a KF-9 that Doug Kay completly restored and need one last part to make it complete. I need the fuel connector that conects to the base of the handle. It screws onto the mating part. This engine has a mechanical fuel pump and a single line hose. If anyone has one for sale or one I can barrow to get some made i would like to hear from you. My E mail is apvw1@aol.com.
    I have attaced a few photos of the engine. Also we are continually making more restoration parts which can be viewed on our web site aeroliner-boats.com

    Thanks,
    Alan
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    Hi Allan, I think I have that fuel connector in my shop on a KG9H. I can loan it to you for you to reproduce but it is not for sale at the present time. It will go with the engine. Atr you going to the World Championships in Fl. next month. If so I can bring it with me. Let me know.....Bob Rusnak....N-96
    Bob Rusnak

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    BoatRacingFacts VIP Aeroliner's Avatar
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    Default Fuel Connector

    Hi Bob,
    I might get down there if I'm lucky. I normally work out of Melbourne but have been in Indy. If I could barrow it it would be great. David might be their if I can't make it. Or you could send it to my house. I will pay postage both ways.

    Alan

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