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Thread: Brake Fluid Reservoirs

  1. #1
    Senior Member carlconti's Avatar
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    Default Brake Fluid Reservoirs

    Any tips on how to remove the caps? The reservoirs look very fragile, and I am reluctant to apply too much force.

    Carl

  2. #2
    Senior Member Pete D's Avatar
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    Default Re: Brake Fluid Reservoirs

    I use a pair of regular pliers to grab the cap at the top and give a gentle twist as you pull it out. Usually once you have it halfway out you can easily pull it out by hand.

    If you are worried about marking up the cap with the pliers put some tape on the jaws of the pliers but generally if you are grabbing it hard enough to mark it up you are squeezing it too hard.

    Something like an eye dropper works great to add fluid. Usually when topping off you only need a tablespoon full or less of fluid per side.
    Pete Dougherty
    R & D Shop Manager
    Cub Crafters Inc

  3. #3
    Senior Member carlconti's Avatar
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    Default Re: Brake Fluid Reservoirs

    Thanks, Pete. That's what I tried, but it refuses to cooperate. I'll give it another go.

    Carl

  4. #4
    Senior Member Pete D's Avatar
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    Default Re: Brake Fluid Reservoirs

    The only part that you want to be gripping is the top 1/8" or so that should be slightly larger diameter than the reservoir itself.
    Pete Dougherty
    R & D Shop Manager
    Cub Crafters Inc

  5. #5
    Member Tahoe Cub's Avatar
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    Default Re: Brake Fluid Reservoirs

    I use a 1/2 inch open end wrench. Slip it around the resevior and lift under the cap edge. Avoid covering the hole in the top of the cap to not create a vacuum in the resevior. Works great. Then only fill to 2/3 of resevior. No marks from pliers.

  6. #6
    Senior Member carlconti's Avatar
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    Default Re: Brake Fluid Reservoirs

    Quote Originally Posted by Tahoe Cub View Post
    I use a 1/2 inch open end wrench. Slip it around the resevior and lift under the cap edge. Avoid covering the hole in the top of the cap to not create a vacuum in the resevior. Works great. Then only fill to 2/3 of resevior. No marks from pliers.
    Sounds like a good idea. I will try it.

    Thanks.

    Carl

  7. #7
    Senior Member Joseph206's Avatar
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    Default Re: Brake Fluid Reservoirs

    I went to Tractor Supply and bought a couple Horse Syringes, they work Great!

  8. #8
    Senior Member carlconti's Avatar
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    Default Re: Brake Fluid Reservoirs

    Is this forum great or what?

    To summarize what advice I like best:
    1. The half inch open wrench is a foolproof method.
    2. Pliers work in skilled hands, but still make me nervous.
    3. Eye droppers are perfect. You can get a three pack of glass eyedroppers for a few dollars at Walgreen's.

    Other ideas work, but these are my favorites.

    Carl

  9. #9
    Senior Member carlconti's Avatar
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    Default Re: Brake Fluid Reservoirs

    Quote Originally Posted by Joseph206 View Post
    I went to Tractor Supply and bought a couple Horse Syringes, they work Great!

    Are you proposing to inject fluid through the vent hole without removing the stubborn cap?

    Carl

  10. #10
    Member Tahoe Cub's Avatar
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    Default Re: Brake Fluid Reservoirs

    Those syringes are good for sedating Husky pilots when they see Carbon Cub takeoff distances.

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