Originally Posted by
byscott
Anyway, to get back to the OP’s original question, it sounds as though the SRAM brakes don’t have a one way bleed valve. That necessitates the extra syringe to maintain vacuum in the system and keep expelled old fluid (and air) from re-entering the system.
Ah, that's an interesting idea and along the lines of my question. That is, I don't have any worries or problems watching videos, I'm just curious about what the recommended bleed methods might say about the device design.
As to the above, Shimano recommends pushing fluid up from the caliper. Others demonstrate gravity bleeding so flow from lever down to the caliper. Would that then preclude a one way value? Or maybe that's why my gravity bleed was a drip drip drip of fluid instead of a flow, ie, it was only very slowly leaking through a one way valve. ???
I guess I need to track down to diagrams showing the innards. Anyone know if those are available? I don't have enough spare parts to start taking things apart myself.
Cheers!