18-04-13, 06:26 PM
Did you check the barrel of the master cylinder, was the overhaul kit in date?
Rubber is a perishable part and these kits have expiry dates.
Sounds like the fluid is passing back behind the plunger somehow, if you are sure you have no leaks or airlocks.
Rubber Brake parts shrink when dry, I suggest dismantling the Master Cylinder again and soak the Master Cylinder rubber parts in Brake fluid and checking them to ensure that they are the correct parts.
Also check that you re assembled it correctly
Rubber is a perishable part and these kits have expiry dates.
Sounds like the fluid is passing back behind the plunger somehow, if you are sure you have no leaks or airlocks.
Rubber Brake parts shrink when dry, I suggest dismantling the Master Cylinder again and soak the Master Cylinder rubber parts in Brake fluid and checking them to ensure that they are the correct parts.
Also check that you re assembled it correctly