 Trouble with brake bleeding, I can't get any pressure in the system |
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| 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. |
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| bigkensteele |
Oct 22 2016, 10:10 PM
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#2
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Major Member Group: Members Posts: 2,197 Joined: 30-August 04 From: Cincinnati, OH Member No.: 2,660 Region Association: South East States 
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Are all of your bleed valves pointing up? Easy mistake to make when you have taken the calipers off. Just asking.
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| 87m491 |
Oct 23 2016, 06:10 AM
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#3
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Member Group: Members Posts: 274 Joined: 29-July 12 From: Portland, the original! Member No.: 14,731 Region Association: North East States
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"Bleed valves pointing up"?! Not sure I follow, all my bleed valves are horizontal and can only point one way when installed....
QUOTE(bigkensteele @ Oct 22 2016, 08:10 PM)  Are all of your bleed valves pointing up? Easy mistake to make when you have taken the calipers off. Just asking. |
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| N_Jay |
Oct 23 2016, 06:46 AM
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#4
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Member Group: Members Posts: 283 Joined: 2-March 16 From: Chicago NW Burbs Member No.: 19,720 Region Association: None |
QUOTE(87m491 @ Oct 23 2016, 07:10 AM) "Bleed valves pointing up"?! Not sure I follow, all my bleed valves are horizontal and can only point one way when installed.... QUOTE(bigkensteele @ Oct 22 2016, 08:10 PM) Are all of your bleed valves pointing up? Easy mistake to make when you have taken the calipers off. Just asking. They are on the upper side not lower side of the caliper, correct? ? |
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| Bartlett 914 |
Oct 23 2016, 09:38 AM
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#5
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Advanced Member Group: Members Posts: 2,216 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
QUOTE(N_Jay @ Oct 23 2016, 07:46 AM) QUOTE(87m491 @ Oct 23 2016, 07:10 AM) "Bleed valves pointing up"?! Not sure I follow, all my bleed valves are horizontal and can only point one way when installed.... QUOTE(bigkensteele @ Oct 22 2016, 08:10 PM) Are all of your bleed valves pointing up? Easy mistake to make when you have taken the calipers off. Just asking. They are on the upper side not lower side of the caliper, correct? ? What he is getting at is I believe early cars the front calipers were different for right and left side. If these get reversed, the bleeders are low on the caliper. The bleeders must be high on the caliper. |
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Posts in this topic
Lozgib Trouble with brake bleeding Oct 22 2016, 10:52 AM
GeorgeRud Bleeding the brakes can be a chore, and their have... Oct 22 2016, 02:42 PM
porschetub
Bleeding the brakes can be a chore, and their hav... Oct 22 2016, 07:31 PM Perry Kiehl Clone Here's how I bleed a 914 brake system, from my... Oct 22 2016, 02:53 PM 87m491 Not sure why anyone would go through this much tro... Oct 22 2016, 08:17 PM jmitro
Not sure why anyone would go through this much tr... Oct 23 2016, 08:30 AM N_Jay You said "Easy pressure method".
Do you ... Oct 22 2016, 04:11 PM 87m491 My 74 has 2 bleeders on each caliper, there is alw... Oct 23 2016, 01:29 PM mgp4591 All good suggestions....
To start off, I'd cl... Oct 22 2016, 11:07 PM Mikey914 Did you buy a URO master cylinder?
This is exactl... Oct 23 2016, 02:07 AM cary Was doing some parts research this AM.
PET shows l... Oct 23 2016, 10:11 AM Lozgib Wow guys thanks for all the helpful comments and s... Oct 23 2016, 01:54 PM Lozgib Having re read Bartlet's reply. My bleed nippl... Oct 23 2016, 01:57 PM N_Jay
Having re read Bartlet's reply. My bleed nipp... Oct 28 2016, 07:32 AM Mikey914 If you have no pressure at all, I would be very su... Oct 23 2016, 02:08 PM Lozgib Mikey
Thanks. I think your right. The car is locat... Oct 23 2016, 02:17 PM JPA914 If your bleed nipples are at the bottom of your ca... Oct 23 2016, 04:13 PM mobymutt
If your bleed nipples are at the bottom of your c... Oct 23 2016, 04:29 PM Lozgib Well guys thanks for all the replies and advice. I... Oct 28 2016, 05:49 AM Olympic 1.7 I may get some abuse for this, but a way I have fo... Oct 28 2016, 07:12 AM |
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