I took a spill yesterday that messed up both radiators, right side radiator shroud, my shoulder and my front brakes. It seems their is a ton of air in the line but I don't see how since no fluid is leaking out. If I look inside the master cylinder their seems to be a circular plastic piece above the holes where the fluid goes, but their is a piece of black debris in their that looks like plastic or something. I can't take it out since their is that circluar piece in their. The brakes will get some (very little) pressure and then it drops. I have tried to bleed them but no matter how many times I do it the lever pressure never changes. Do you think I need a new master cylinder?