Anyone know anything about disc brakes?

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Belagerent

how much mineral oil should be leaking out of the top of my shimano brifter? Just swapped the calliper, brake block is in, rolled the hoods back and it looks kind of oily up there....

I think I know the answer to this...

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Adhiero in reply to @Belagerent

There’s an over pressure valve under the hood on some Shimano road shifters, and it can open if the pistons are separated too forcefully or the system is bled very aggressively. Was the oil on the top or on the sides/bottom of the hood?

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Belagerent in reply to @Adhiero

It was on top I think but by the end there was some oil most places.

I think it was related to the bleeding because I'd never noticed it on top before so this could be a clue. Thanks.

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