Sram eTap Bleeding / Re-Filling - Shifter blocked?
Posted: Mon Oct 22, 2018 3:44 pm
Hello there,
I built up my 'Winter' bike over the weekend using an eTap groupset I had previously used for another bike but I sold the later in the spring and since then the groupset was sitting in the basement - after I had bled the brake fluid completely. After re-assembling the groupset onto the new frame with new brake eTap hoses, I wanted to re-bleed the system.. and well.. I can't.
No fluid is entering the system from the shifters - as-in .. plural.. I have the very same problem with both of them. The fluid enters the shifters.. but that's it.. as if something inside the shifters was blocking / blocked somehow and not entering the hoses. From the other end however, the calipers, it does work perfectly fine (you can hear and see from the amount of fluid entering the system that way it goes into the brake hoses) so I am a bit confused what's going on here. I already double-checked the obvious and potentially "embarrassing" things I might have done wrong (opened the clips of the bleed kit and double-checked the hose-connectors (barbs/connectors/compression ring) into the shifters).. but nope. All seems 'correct' but there is no fluid going/flowing between shifters and calipers.. anymore.
Does anyone know what might be going on or wrong here, or what I might have overlooked? Oddly their Hrd Service Manual does not include a strip-down / re-build instruction for the shifters.. or well.. the hydraulic part of it so I am somewhat heistant to disassemble it myself but maybe someone had a similar problem and knows what might be going on.
Thanks,
-Jörg
I built up my 'Winter' bike over the weekend using an eTap groupset I had previously used for another bike but I sold the later in the spring and since then the groupset was sitting in the basement - after I had bled the brake fluid completely. After re-assembling the groupset onto the new frame with new brake eTap hoses, I wanted to re-bleed the system.. and well.. I can't.
No fluid is entering the system from the shifters - as-in .. plural.. I have the very same problem with both of them. The fluid enters the shifters.. but that's it.. as if something inside the shifters was blocking / blocked somehow and not entering the hoses. From the other end however, the calipers, it does work perfectly fine (you can hear and see from the amount of fluid entering the system that way it goes into the brake hoses) so I am a bit confused what's going on here. I already double-checked the obvious and potentially "embarrassing" things I might have done wrong (opened the clips of the bleed kit and double-checked the hose-connectors (barbs/connectors/compression ring) into the shifters).. but nope. All seems 'correct' but there is no fluid going/flowing between shifters and calipers.. anymore.
Does anyone know what might be going on or wrong here, or what I might have overlooked? Oddly their Hrd Service Manual does not include a strip-down / re-build instruction for the shifters.. or well.. the hydraulic part of it so I am somewhat heistant to disassemble it myself but maybe someone had a similar problem and knows what might be going on.
Thanks,
-Jörg