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How much brake flui...
 

[Closed] How much brake fluid in a cable?

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[#1983603]

Hi,

Decided to bleed my Shimano brakes with mineral oil (it's written on the brake levers, so I'm sure I got it right). Pot is 125ml. I kept topping up until I see no bubbles coming out on the other side...but after emptying half of the container, there was still some air trapped coming out in the fluid. I decided to stop half way thinking I'm doing something wrong and I like to check with you how much oil do you usually need to fully replace the old one, per cable?

Thank you.


 
Posted : 12/09/2010 4:32 pm
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I don't really understand what you are doing. There are no cables in hydro brakes A full system - master cylinder/ hose / calliper will contain about 25 ml of fluid - maybe a bit more. some brakes need a specific procedure - make sure you are using he correct one.

Are you letting the reservoir empty completely - that introduces more air.


 
Posted : 12/09/2010 4:45 pm
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sorry that's my whacky english, I mean hose or pipe, not cable, where the fluid goes through. And I can see that 25 ml it's not a lot. Thanks. Always top up before the reservoir get empty. Got to read the instruction again.


 
Posted : 12/09/2010 4:52 pm
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somewhere there is air getting in then as you try to bleed thru if you rare still getting air out of the system


 
Posted : 12/09/2010 4:54 pm