Good tutorial for Shimano hydraulic brake flush and replace?
03-29-23, 07:22 PM
#1
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Good tutorial for Shimano hydraulic brake flush and replace?
My XT brakes haven't had the fluid replaced in like 5 years. I think it's time. 😵💫 Can someone link to a really good tutorial with video and/or pics? I can do most everything else on the bike, but I'm kind of intimated by this one.
Thanks...
Thanks...
03-29-23, 07:37 PM
#2
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Park Tool's website has what you need.
It is a pretty easy procedure, but you need to have some tubing and Shimano's bleed funnel or a syringe with the correct fitting. You don't need the expensive kits, just the $12 funnel and some tubing will work fine.
It is a pretty easy procedure, but you need to have some tubing and Shimano's bleed funnel or a syringe with the correct fitting. You don't need the expensive kits, just the $12 funnel and some tubing will work fine.
Last edited by Polaris OBark; 03-29-23 at 07:45 PM. Reason: added link
03-29-23, 09:24 PM
#3
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Originally Posted by Polaris OBark
Park Tool's website has what you need.
It is a pretty easy procedure, but you need to have some tubing and Shimano's bleed funnel or a syringe with the correct fitting. You don't need the expensive kits, just the $12 funnel and some tubing will work fine.
It is a pretty easy procedure, but you need to have some tubing and Shimano's bleed funnel or a syringe with the correct fitting. You don't need the expensive kits, just the $12 funnel and some tubing will work fine.
03-29-23, 09:42 PM
#4
ignominious poltroon
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Sometimes air bubbles are hard to dislodge, and a syringe can work better. You can also create negative pressure easily with a syringe, which is a simple way to remove gas (air) from a fluid.
03-29-23, 10:00 PM
#5
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Originally Posted by Polaris OBark
Sometimes air bubbles are hard to dislodge, and a syringe can work better. You can also create negative pressure easily with a syringe, which is a simple way to remove gas (air) from a fluid.
03-29-23, 10:10 PM
#6
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The videos make it look simple, but it's very messy the first few times. Have plenty of rags and rubbing alcohol available
03-29-23, 10:11 PM
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What brakes do you have?
Shimano XT has been through multiple versions (3 major and several more minor) which require different processes.
A little more detail would be useful!
Shimano XT has been through multiple versions (3 major and several more minor) which require different processes.
A little more detail would be useful!
03-29-23, 10:20 PM
#8
ignominious poltroon
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Originally Posted by Wattsup
What is meant by "negative pressure?"
If you have fluid with gas dissolved in it in a syringe, you close the tip, and then start to pull out the stopper, it will create a partial vacuum above the fluid, and pull out air bubbles. It is a useful trick if the brakes feel too mushy.
But don't worry about it unless you have to.
03-31-23, 08:06 PM
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03-31-23, 08:08 PM
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03-31-23, 10:01 PM
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bbinfinite
hydraulic disc brake bleeding done right (Shimano)
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hydraulic disc brake bleeding done right (Shimano)
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