Having a nightmare of a time with the brakes.
I poured the brake fluid into the reservoir and left it overnight.
Every single connection on the braking system was leaking. Spent quite some time ensuring I have a leak free system only to find that the WW reservoir had a pin hole underneath the bracket.
Got it fixed up and connected it all again.
Then I noticed the handbrake was not working anymore, after some inspection and removing the rear drums I noticed they were full of brake fluid. The bleed valves' threaded part actually sits inside between the backing plate and the drums, and I probably opened them to far and got the brake fluid everywhere.
Cleaned it all back up and together again...
Started bleeding the brakes again, pedal is pressed and there is def pressure, while the pressure is applied I slightly open the bleeder, the pedal goes all the way in and before it is released I close the bleeder.
But after doing that I can press the pedal to the floor, no pressure. After waiting a few seconds there is pressure again.
I noticed a vacuum sort of sound at the cylinder, its as if the piston in the master cylinder does not immediately return and gets stuck somewhere.
It is not a constant vacuum, probably about 2-3secs and then I can hear it release and also after about 10+ seconds after the pedal was depressed fully to the floor.
I did check the push rod length and 1mm gap before the rod pushes against the piston.
I was also told to adjust the brakes so that they are fully engaged with the drum before bleeding.
Is this a faulty MC, is there a possible air lock/vacuum, any advice ?
Its a single cylinder, I have the discs upfront and drums at the rear.
