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You may have to explain. I need to undo the hose to extract it from the frame, can I seal it somehow to do so?
andyp-
Nah, just carefully unattach it, removed from frame, and then reattach it to the levers.
You might be lucky and not need bleeding, but if it does, just a simple case of injecting more mineral oil in the system rather than a complete rebleed.
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You know how you put your finger at the end of a staw and it hold the water in? The hydraulic kinda like that, but still can drip a bit, hence being careful removing it.
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- unbolt the lever from the untapped bars
- unbolt the caliper from the frame
- bike in stand, horizontal unbolt hose from caliper. As soon as hose is released point it upwards so it can't drip.
- remove caliper (you can cap it off with the right sized screw if you want)
- position bike vertically with hose facing up
- draw hose through the frame and out
It's all about using gravity to keep the fluid where it needs to be. There's surprisingly little of it in the hose. I suspect there is a bolt out there that would cap it off, too. Have a poke around.
You will need to do a proper bleed on reassembly though - very unlikely you won't get air in the caliper and hose during the process.
- unbolt the lever from the untapped bars
edscoble
Howard
You don't need to empty them.