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Thread: Fa-90

  1. #11
    Team MSR
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    Default Sleeve...

    Quincy used to build a sleeve to go from the roller bearing top diameter of the 20-H / 25 crankshaft to same size as the lower ball bearing diameter. Check their price list.

    Michael

  2. #12
    Team Member BJuby's Avatar
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    Interesting. And I assume it worked? There was/is no danger of the sleeve spinning on the crankshaft?

  3. #13
    Team Member BJuby's Avatar
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    Going to have a sleeve made for the engine. Then I can finally assemble and finish this project.

  4. #14
    Team Member BJuby's Avatar
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    What were the sizes of the carb throat on Carter N's that were used for A Loopers? I have several bodies to choose from varying in size, all Carter N's. Over this vacation I am completing assembly on FA-90. Shimming is all worked out, just need to put it together.

  5. #15
    BoatRacingFacts VIP John Schubert T*A*R*T's Avatar
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    Quote Originally Posted by BJuby View Post
    What were the sizes of the carb throat on Carter N's that were used for A Loopers? I have several bodies to choose from varying in size, all Carter N's. Over this vacation I am completing assembly on FA-90. Shimming is all worked out, just need to put it together.
    FA's & FC's were 1 1/16 FB's & FD's were 1 1/8

  6. #16
    Team Member BJuby's Avatar
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    Quote Originally Posted by John Schubert T*A*R*T View Post
    FA's & FC's were 1 1/16 FB's & FD's were 1 1/8
    That's the outer diameter of the throat right? What about the inside? The one's I have all taper differently, some are small on the inside, while others are much larger. Thanks John.

  7. #17
    BoatRacingFacts VIP John Schubert T*A*R*T's Avatar
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    Brandon,

    Dick O'Dea did my carbs & as far as I recall the sizes I mentioned were the venturi sizes. I don't believe that he altered either the carb front opening or the the barrel size behind the venturi to the CC

  8. #18
    Team Member Gene East's Avatar
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    Quincy Welding used a custom made reamer for B&D carbs and A&C were not reamed. As I recall, John is correct on the size.

    I have to think if you have carbs with widely varying I.D.'s, they may have been worked on by someone other than Q.W.

    What's that I just heard? Ray Rodda just gave Santa and Rudolph "5 minutes to the 3"!

    Merry Christmas everyone!!!

  9. #19
    Team Member BJuby's Avatar
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    These carbs are in a box of float less Carters I got a couple years ago. Interestingly enough, not a single one of the loopers I have came with carbs. I'll post pictures when the time comes. Merry Christmas all.

  10. #20
    Team Member BJuby's Avatar
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    Anyone have two of these? Another thing neither of my 2 cylinders have.

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