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  1. #1
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    To torque or not?

    I have a 2003 Optimax with a Fury 4 prop 14.5x24. The prop was new last fall and came with the Flo-Torq hub kit. I'm seeing 100 ft lbs if it has the conical filler and 55 ft lbs if doesn't. I don't know the difference.

    That being said, is it that important to torque? I have never used one before and have never had an issue. But, my 2003 Cougar was new to me last year and I'm trying to go by the book for her.

    The research I have seen is about 50% of the people will torque their prop nut. Curious what the Bass Cat family will say here.

    Thanks!

  2. Banned
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    #2
    It's not a boat question; it's a motor question. Repost in the appropriate Mercury section for the correct answer.

  3. Member 06 SB's Avatar
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    #3
    Your Fury SHOULD have the cone bushing and the 100ft-lbs. Yes use a Torque wrench.

    USN Retired
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  4. Member C130's Avatar
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    #4
    I use a torque wrench.

  5. Member
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    #5
    Good n tight German torque specs

  6. Member
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    May 2017
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    Lanier Gainsville GA
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    #6
    Some hubs are 55# so be sure. I’ve seen many pictures of broke hubs that were torqued lately. I’m a just make it tight guy. It only sees pressure in reverse. That’s not to say it won’t vibrate, on have harmonic issues. But I’ve never had one mess up yet on , alphas,brovo’s, or any of the other 25 boats I’ve owened. Just don’t over do them. Tight + breaks stuff.

    I think it would run a long time without a nut on it, if you never used reverse . Lol
    Last edited by Jetboy; 04-21-2018 at 11:20 PM.
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  7. BBC SPONSOR Bass Cat Boats's Avatar
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    Jul 2004
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    #7
    We just tighten all hubs extremely tight, not torque pounds applied, just extremely tight.

  8. Member Louie's Avatar
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    "the head, the tail, the whole damn thing"

  9. Member Louie's Avatar
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    #9
    look at the images Don posted. You should be able to figure it out. I torque mine with a digital torque wrench. But might pick up on a craftsman one, they are on sale for $49

    Its also recommended to get a new prop nut... If your re using it a few times I think you can get away with that. If the nylon collar in the nut is chewed up get a new one. Its not worth having your prop go to davy jones locker.
    Last edited by Louie; 04-25-2018 at 06:54 AM.
    "the head, the tail, the whole damn thing"

  10. Member
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    #10
    Tight and thats good!

  11. Banned
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    #11
    Problem with "Niz N Tight" or "just tight"
    - mechanic A 125lb 5'2" with 3/8" socket wrench 6"long puts all his force and gets 40 ft-lbs
    - mechanic B 295lb 6'6" grabs a 1/2" johnson bar and puts it tight and gets 150 ft-lbs worth of torque.....
    $50 torque wrench and all is done properly
    Note that some props have brass nuts that will strip when over tightened
    For the unseasoned mechanic a torque wrench is a great piece of mind.
    And datt is me 2-cents of non-cents