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Old Aug 16, 2014 | 11:08 PM
  #11  
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Negligent maintenance. And poor pre-ride inspection?
 
Old Aug 17, 2014 | 12:38 AM
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Originally Posted by lo-rider
Negligent maintenance. And poor pre-ride inspection?

yep calipers stick, need to be popped out and system cleaned every once in a while ...lot easier on you than falling down
 
Old Aug 17, 2014 | 12:39 PM
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I was unaware that brake fluid did not conform to the physical properties of all othe known liquids. Guess that is why is costs so much, so it won't expand when heated.... Not. The only change to brake fluid that absorbs moisture is lowering the boiling point.
 
Old Aug 17, 2014 | 03:03 PM
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In the OP's defense, though it IS necessary to change fluid every year or two, how many of us "check" the hydraulics of the brake? It either works or is spongy, needing bleeding or repair. Racing on the Dragon, both I and my riding bud have lost a brake to overheating, and our crap ain't dirty or idle long enough to moistureize.(sp) The fluid probably was boiling.
We don't race any more. Bad for longevity.
 
Old Aug 17, 2014 | 03:51 PM
  #15  
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Originally Posted by DDuess
I was unaware that brake fluid did not conform to the physical properties of all othe known liquids. Guess that is why is costs so much, so it won't expand when heated.... Not. The only change to brake fluid that absorbs moisture is lowering the boiling point.
I'm not an eggspurt in physics but I thought when moisture boils it turns into a gas.
 
Old Aug 17, 2014 | 04:41 PM
  #16  
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I guess my old 84 Iron Head Sporty did not know about that as I rode it for 23 years and 50,000 miles and never changed the brake fluid. I will have to make a note of that for my 99 Softail Custom as it still has the original brake fluid also. It only has 45,000 miles on it though.
 
Old Aug 18, 2014 | 08:21 PM
  #17  
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Originally Posted by Jim Kraft
I guess my old 84 Iron Head Sporty did not know about that as I rode it for 23 years and 50,000 miles and never changed the brake fluid. I will have to make a note of that for my 99 Softail Custom as it still has the original brake fluid also. It only has 45,000 miles on it though.
You just described utter carelessness. Stay off of our roads, please. LUCK doesn't always work. You can risk your motor. But you should NEVER, EVER, risk steering or brakes on ANY vehicle. I'll try not to call you some nasty name here.
 
Old Aug 18, 2014 | 08:33 PM
  #18  
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Well, I'll stand up and admit that I've never heard of this happening. I do check for brake hold and release before every ride. I wouldn't ride with a brake that was dragging.
 
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Old Aug 18, 2014 | 08:38 PM
  #19  
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Originally Posted by RK4ME
Clean brake fluid doesn't expand when it gets hot, but brake fluid that is contaminated with air and/or water will.
All fluids expand when heated, and water has one of the lowest volumetric thermal expansion rates of most listed fluids...so brake fluid contaminated with water would expand less.


http://www.engineeringtoolbox.com/cu...ts-d_1262.html
 
Old Aug 18, 2014 | 08:48 PM
  #20  
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The problem with moisture in the fluid is, when it reaches boiling temp, the moisture becomes expanding steam and the pressure locks your brakes.
 



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