Shimano M785 brakes...
 

  You don't need to be an 'investor' to invest in Singletrack: 6 days left: 95% of target - Find out more

[Closed] Shimano M785 brakes leaking from master cylinder

2 Posts
2 Users
0 Reactions
115 Views
 duir
Posts: 1176
Free Member
Topic starter
 

Just fitted a new set of M785's but noticed they are seeping fluid from the master cylinder seal when the lever is pulled. Anyone else had this?


 
Posted : 27/01/2013 3:50 pm
Posts: 507
Free Member
 

Possibly just superfluous fluid from the original fill/bleed process, before the piston can create pressure in the hose, it's primary seal has to pass the port into the reservoir, this creates a little pressure in the reservoir which expands the diaphragm, and will pump out any fluid on top of it (Hope put a note with their brakes to say it's normal).On the other hand, they may be faulty, if it continues then they probably are.


 
Posted : 27/01/2013 4:54 pm
 duir
Posts: 1176
Free Member
Topic starter
 

Thanks for that, I shortened and then re-bled them myself and then it started. Very familiar with Hopes but these shimano are new to me so wondered if I had done something wrong. However after several wipes and lever pulls the fluid seems to have stopped leaking so it must have been what you said. Ta.


 
Posted : 27/01/2013 6:13 pm

6 DAYS LEFT
We are currently at 95% of our target!