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Thread: Dirty 30...prop that I cannot find

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    Default Dirty 30...prop that I cannot find

    My dad is restoring old outboards....a passion from his racing days in the 50's.

    He's discovered the "Dirty 30" and made his own.

    Now....he tells me he has no way to run it since he feels he cannot find a prop for it.

    He says he needs a 9 1/2" dia x 15" pitch....don't know if that's right.

    Does anyone know what prop he might need and where to get one?

    He says he used to use OJ props in the day, but they cannot help us now.

    fyi: if Ron Hill is still here....I bought Bunker's old boat, but sold it last Fall.

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    Team Member DeanFHobart's Avatar
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    Quote Originally Posted by cocacola View Post
    My dad is restoring old outboards....a passion from his racing days in the 50's.

    He's discovered the "Dirty 30" and made his own.

    Now....he tells me he has no way to run it since he feels he cannot find a prop for

    He says he needs a 9 1/2" dia x 15" pitch....don't know if that's right.

    Does anyone know what prop he might need and where to get one?

    He says he used to use OJ props in the day, but they cannot help us now.

    fyi: if Ron Hill is still here....I bought Bunker's old boat, but sold it last Fall.

    Call Ron Hill... Look in the ‘red’ on top... Hill Marine.
    Dean Hobart

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    BoatRacingFacts VIP John Schubert T*A*R*T's Avatar
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    Pretty STIFF prop for a 30H, but if just a MK 30 might be OK

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    Quote Originally Posted by John Schubert T*A*R*T View Post
    Pretty STIFF prop for a 30H, but if just a MK 30 might be OK
    Isn’t a dirty 30 a mark 55 on a Mark 30 lower?

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    BoatRacingFacts VIP John Schubert T*A*R*T's Avatar
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    Quote Originally Posted by cocacola View Post
    Isn’t a dirty 30 a mark 55 on a Mark 30 lower?
    Never heard of that, BUT

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    Team Member R Austin's Avatar
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    That’s a bigger prop than I ran on the 6 cylinder looper.
    Don’t sound right for a 30H.

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    Team Member racnbns's Avatar
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    Quote Originally Posted by cocacola View Post
    My dad is restoring old outboards....a passion from his racing days in the 50's.

    He's discovered the "Dirty 30" and made his own.

    Now....he tells me he has no way to run it since he feels he cannot find a prop for it.

    He says he needs a 9 1/2" dia x 15" pitch....don't know if that's right.

    Does anyone know what prop he might need and where to get one?

    He says he used to use OJ props in the day, but they cannot help us now.

    fyi: if Ron Hill is still here....I bought Bunker's old boat, but sold it last Fall.
    A picture of the motor would help. If your like me and don't do pic's describe the motor, no. of cylinders, mag. or bat. electronic ignition, type of gearcase and diameter of propshaft and gas or alky burner. Sounds interesting. Keep the info coming.

    Bruce

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    Team Member DeanFHobart's Avatar
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    Quote Originally Posted by cocacola View Post
    Isn’t a dirty 30 a mark 55 on a Mark 30 lower?
    Hello, as mentioned before... have you contacted Ron Hill at Hill Marine yet... he can help you.
    Dean Hobart

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    Tim Weber
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    The only 30H that I can think of that might pull that would be a motor converted to C-service alky with a 14-21 gearfoot.

    The Evinrude speedy twin service-C usually run about a 8 3/4" x 14 with the above gear ratio.

    Tim

  10. #10
    Administrator Ron Hill's Avatar
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    Default No, Ron Hill Can't...

    Quote Originally Posted by DeanFHobart View Post
    Hello, as mentioned before... have you contacted Ron Hill at Hill Marine yet... he can help you.
    We raced Stock Motors or serious modified alky burners. I have never heard of a Dirty 30. Tim Weber might be right, 20-H gears in a "C" foot...I know down Oklahoma way they did some strange stuff.

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