I had an incident recently that resulted in a damaged hydraulic hose. It was munched by the chain.
Curiously, the brake still holds pressure and functions, though I have limited confidence in it. I'd like to trim the damage off and fit the caliper to the cut-end.
The hose is labelled "Shimano SM-BH59-JK" and while the caliper is bottom-end I would prefer to not replace the whole thing.
These are the spares that came with the pre-bled caliper set, so I presume its what's needed. I guess the round barrel is the Olive.
My plan is:
unbolt the ~8mm nut where the hose enters the caliper and draw it back. I expect to find the same two brass parts in the end, but that they will be secured and not reusable. The caliper will be full of Mineral Oil, hold so it doesn't leak out.
Cut the hydraulic line just above(left) of the damage. Again, its got fluid in there. I will use some crossover cable-brake outer cutters.
Smooth off the cut end and open up any liner. There's obviously a braided mesh in there.
Move the existing nut to the good hose, above the cut.
Fit the new brass olive over the hose.
Insert the new brass pin in the end, and make it look like the cut-off piece in offset and layout.
Insert the prepared end of hose into caliper and tighten down the original black nut.
Refit caliper to mounts, align caliper, test.
Do I have everything I need? Are there any oversights or errors in this method?