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Thread: Today I found out...

  1. #1
    Senior Member 34nineteen's Avatar
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    Today I found out...

    How little I use my rear brakes.

    I did the hidden Brembo swap on my XB, bled the brake and all was good.

    I finally set up the SCG suspension and took it for a quick ride around the ‘hood.

    Obviously I didn’t test it thoroughly because it doesn’t work. Lol. This is all lunaticfringes fault.

    I would say “check twice, bleed once” but that makes no sense!

  2. #2
    Senior Member Cooter's Avatar
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    The weird location of the bleeder screw on the hidden caliper mod messed me up too. I bleed it sort of 1/2 way off the disk with the bleeder straight up.

    FYI changing the rear master to a smaller 11mm(IIRC?) actually gets the rear brake to work! Instead of the hard wood Buell stock rear 'brake'.

  3. #3
    Senior Member 34nineteen's Avatar
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    I actually remove the caliper from the swingarm, and put something about the thickness of the rotor between the pads (usually a 1/4” thick piece of wood).. It’s much easier to bleed that way (if only I did it right!)

    I figured someone would enjoy my “duh” moment of the day.

    I’m ok with the braking quality of the stock m/c with the P32. If it was a P34, I’d definitely step it up (I mean down) like you recommended.
    I’m actually a little proud of my lack of reliance on the rear brake.

  4. #4
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    Same way I bleed mine. I have a piece of 1/4” steel just for bleeding the rear brake. Works every time.

  5. #5
    Senior Member 34nineteen's Avatar
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    Quote Originally Posted by mike lowary View Post
    Same way I bleed mine. I have a piece of 1/4” aerospace grade titanium just for bleeding the rear brake. Works every time.
    Fixed it for you!

    YW!

  6. #6
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    Ya I wish! I only have that in 1/2” round stock....

  7. #7
    Senior Member 34nineteen's Avatar
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    Ha! I found the issue!

    See Cooter, you can quit telling me I’m an idiot (albeit a handsome one).

    The caliper appears to be leaking down the seam where the halves are bolted together!

    I’ll just mix a little power steering fluid into the reservoir and that should swell the seals enough to git er dun!

  8. #8
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    Quote Originally Posted by 34nineteen View Post
    Ha! I found the issue!

    See Cooter, you can quit telling me I’m an idiot (albeit a handsome one).

    The caliper appears to be leaking down the seam where the halves are bolted together!

    I’ll just mix a little power steering fluid into the reservoir and that should swell the seals enough to git er dun!
    Good find.

  9. #9
    Senior Member Cooter's Avatar
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    Quote Originally Posted by 34nineteen View Post
    I’ll just mix a little power steering fluid into the reservoir and that should swell the seals enough to git er dun!

    They are just o-rings in there you idiot! Sorry, ahem... you handsome idiot

    Take it apart and do it right. You aren't doing anything anyway, I'm watching your webcam now Heck, I bet a typical o-ring kit will have the sizes you need, what the boiling temp of power steering fluid?? Lower than my life depends on...

  10. #10
    Senior Member 34nineteen's Avatar
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    Uh no!!!! You are wrong! There is NO o-ring in there! You’d think there would be one, heck there is even a groove where you could put an o-ring! But, nada ... nothing!!!! No o-ring!

    Lol!


    This is the missing bugger! It was weird that the bolts that held the two caliper halves together were only snug.

    0A8CDEFD-0FFB-4FB9-B1EA-C6EF6CEA4E91.jpeg

    Years ago when I worked at a GM parts counter, every now and then someone wouldn’t bring in a hugely distorted brake master cylinder diaphragm, and hear how they topped up the power steering and this happened. It’s pretty wild how much p/s fluid affects brake rubber parts.


    Last edited by 34nineteen; 03-25-2020 at 05:17 AM.

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