Trouble with brake bleeding, I can't get any pressure in the system |
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Trouble with brake bleeding, I can't get any pressure in the system |
Lozgib |
Oct 22 2016, 10:52 AM
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#1
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Newbie Group: Members Posts: 5 Joined: 29-July 16 From: U.K. Member No.: 20,236 Region Association: None |
Hi. I'm new to Porsche 914 ownership so please go easy on me. I have owned vw splitscreen buses for 30 years and restored loads of them though.
I bought a California 914 a few months back that is running fine now but had been sitting for a number of years needing the brakes restoring as all four callipers had sized and master cylinder leaked. I replaced all four callipers with rebuilt OG units from a reputable USA supplier together with a new master cylinder. I've bled the system 4 times using the easy self pressure method and combined traditional two person method and also combined both together as described on forums. I get clear brake fluid at each wheel with no bubbles but I have no pressure at all at the pedal. It goes straight to the floor. I've read every brake thread on this and other forums and can't find a solution. I have not replaced the pressure regulator as they aren't available her in the uk but would that cause zero pressure? I'm thinking there may be an issue with one or more of the callipers. I've got no leaks I can detect on the system. I'm stumped and lost for what to try next? Any help would be appreciated. |
Olympic 914 |
Oct 28 2016, 07:12 AM
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#2
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Group: Members Posts: 1,675 Joined: 7-July 11 From: Pittsburgh PA Member No.: 13,287 Region Association: North East States |
I may get some abuse for this, but a way I have found to bleed the brakes with one person is to use the bleeder adapters from my Mity-Vac kit and the bottle that goes with it and instead of constantly pumping the Mity-Vac. I just hook it up to a shop vac. ( with a small hose adapter for detail work) unfortunately I didn't take any pictures of this Rube Goldberg contraption but it always keeps vacuum on the system. then I sit in the car and slowly pump the brakes. the vacuum keeps any air from getting back into the system, and pulls some fluid even when not pumping the brakes. be sure to check your master cylinder frequently as it can go down quickly.
Works for me. |
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