I bust the rear brake line last weekend (single line for the rear brakes, no load balancer fitted)
So in true bodge fashion I cut the rear line, bent it over and hammered it so it didn't leak.
The idea was to use the front brakes only.
Bled the brakes and nothing..... no brakes at all, brake pedal went to the floor every time....
Removed and checked all the calipers etc, all free and working fine (had cleaned and greased them all just last week)
Plenty pressure coming out of the master cylinder on both lines, so wasn't that.
On my splitter below the master cylinder, the pipe from the rear of the master cylinder goes into the rear of the splitter then looks to go straight to the rear brakes.
The pipe from the front of the master cylinder goes into the front of the splitter then exits bottom and front to go to each front brake (I have no side exit)
So.... I'm assuming since I blocked the rear pipe/secondary circuit that somehow this meant i got no pressure down the primary circuit to the front brakes??
I swapped the blocked off rear pipe onto one of the front exits on the splitter and the front pipe onto the rear exit, bled them and both fronts were working again 100%
So I know if one circuit starts leaking the other circuit will still work but if one circuit is blocked and prevented from working it looks like this also stops the other from working??
I suspect whatever does this must be within the master cylinder??
Any thoughts?
