With brakes on other vehicles, if you compress the master cylinder quickly, the seals will expand and hold. If it is compressed slowly, the seal won't have that expansion and a faulty (worn/hard) seal or bore can leak down. As for the crush washers, I prefer to use new, but if they're not leaking, I wouldn't worry about them.You know, it should be easier for me to say which of the two it is. I guess I would have to say it is a hard-then-sinking feel. When I walk up to the bike and grab the lever, it is very firm. If I hold and squeeze it, it will 'sink'. I guess as I describe it, it does sound like it it losing (leaking) pressure. There is no sign of fluid going anywhere that I can determine. MFolks ask if I used new crush washers and I HAVE re-used them to the extent that they have been crushed and re-crushed at least three times. Could that cintribute to or even be, the problem?
If you sqeeze it quick, does it have a hard/higher feel?Okay, I went to the garage just now and squeezed the lever like I was beginning to slow down to stop and the lever just slowly sank back almost all the way. I also noticed the fluid level is down from yesterday and oddly, looks darker for some reason. I felt each junction and they are all feeling dry. What do you think?
To answer your question, "yes". Meanwhile I went down and checked each and every fitting and they are very tight. Each bleed valve is very tight. I re-bled the system again and now I think I have the answer. I watched the top of the master cylinder as I sat on the bike (after bleeding) and sqeezed the lever. Fluid was seeping from the corner where the screw was messed up but I thought it was okay. I had noticed that when I tightened that screw after bleeding, that a tiny bit of fluid oozed out the top of the screw hole. At that second, I chalked it up to "maybe a tad too much fuid in reservoir.....". But that is also why I watched the corner as I sat on the bike and squeeze the lever. Does that solve the mystery? I am cautiously optimitstic that it do, but...... I mean, I will be happy to buy a new one if that is the problem. I saw some "new" after-market ones for $79.95 ( available for many bikes) and OEM are $200-240. Which would YOU buy? I have heard of Brembo......do I want one of those? Thanks for your help.If you sqeeze it quick, does it have a hard/higher feel?