 Brake bleeding, Nothing but air from rear brakes |
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| Medtner3 |
 Oct 4 2020, 07:49 AM
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#1
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Member  Group: Members Posts: 187 Joined: 7-July 20 From: Cedar Park Member No.: 24,467 Region Association: None  |
Just rebuilt my rear calipers with seals from PMB Performance. Using a vacuum brake bleeder I started with the right rear caliper lower bleeder screw ( I have two screws) and initially pulled about an inch of brake fluid with lots of bubbles and then zip. I get zero brake fluid now.
What could cause this? I have no signs of any leaks and the brakes were not bad before I rebuilt the calipers. I read somewhere that I might need to bleed the proportioning valve or even pump into the caliper some brake fluid through the top bleeder ? I ordered a Motive pressure bleeder which arrives in a few days Attached image(s)   
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Replies
| rhodyguy |
Oct 4 2020, 12:05 PM
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,249 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
Get some speed bleeders. One for each caliper. Installed in the upper holes. A LONG piece of clear tubing and a catch jar.
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| Gint |
Oct 6 2020, 04:45 PM
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#3
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Mike Ginter Group: Admin Posts: 16,098 Joined: 26-December 02 From: Denver CO. Member No.: 20 Region Association: Rocky Mountains  |
QUOTE(rhodyguy @ Oct 4 2020, 11:05 AM)  Get some speed bleeders. One for each caliper. Installed in the upper holes. A LONG piece of clear tubing and a catch jar. And make damn sure when you're doing all of this you don't let the fluid go low in the master cylinder reservoir. Keep it topped up as the fluid level gets low.I tried a motive bleeder on a 914 once and didn't have much luck with it. That may just be me. Operator error, who knows. I prefer the old fashioned two person method. |
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Posts in this topic
Medtner3 Brake bleeding Oct 4 2020, 07:49 AM
mlindner Chances are the brake fluid drained out of the mas... Oct 4 2020, 08:06 AM
Medtner3
Chances are the brake fluid drained out of the ma... Oct 4 2020, 08:25 AM mlindner Yes I would try the fronts first...I know that is ... Oct 4 2020, 08:36 AM Medtner3
Yes I would try the fronts first...I know that is... Oct 4 2020, 08:42 AM davep On a caliper with two bleed nipples, the top is th... Oct 4 2020, 08:55 AM Medtner3
On a caliper with two bleed nipples, the top is t... Oct 4 2020, 11:51 AM iankarr
On a caliper with two bleed nipples, the top is ... Oct 4 2020, 12:08 PM Medtner3
[quote name='Medtner3' post='2856582' date='Oct 4... Oct 4 2020, 01:42 PM Medtner3
[quote name='Medtner3' post='2856582' date='Oct 4... Oct 6 2020, 04:28 PM Olympic 914
It only pressurizes to 5-6 psi I wonder if tha... Oct 6 2020, 06:42 PM Medtner3
It only pressurizes to 5-6 psi I wonder if th... Oct 6 2020, 06:47 PM iankarr
[quote name='Olympic 914' post='2857140' date='Oc... Oct 6 2020, 07:59 PM Tdskip The other thing that I would add is that for whate... Oct 4 2020, 10:55 AM iankarr I like to use pressure (motive @ 5-10 psi) followe... Oct 4 2020, 11:12 AM Amphicar770 I had no luck vacuum bleeding the 914, couldn... Oct 6 2020, 05:19 PM Medtner3
I had no luck vacuum bleeding the 914, couldn... Oct 6 2020, 06:49 PM rjames I could never get the brakes bled properly until I... Oct 7 2020, 11:07 AM Medtner3
I could never get the brakes bled properly until ... Oct 9 2020, 05:17 PM draganc Assuming you are not in a rush to drive the car I ... Oct 8 2020, 05:38 PM Medtner3 Damaged master cylinder or impatient? I put on spe... Oct 8 2020, 07:13 PM davep Have you correctly set the venting clearance on th... Oct 8 2020, 08:09 PM Medtner3
Have you correctly set the venting clearance on t... Oct 9 2020, 07:27 AM Gint Have you correctly set the venting clearance on th... Oct 10 2020, 09:55 AM Medtner3
[quote name='Medtner3' post='2857647' date='Oct 9... Oct 11 2020, 08:30 PM Medtner3 UPDATE: Pedal bled four times have a pedal now it... Oct 9 2020, 05:19 PM Frankvw I understans it is very frustrating yes. Keep up t... Oct 10 2020, 06:44 AM davep http://www.914world.com/bbs2/index.php?showtopic=3... Oct 10 2020, 09:27 PM mb911 Kind of have the same issue.. The entire brake sys... Oct 11 2020, 06:36 AM iankarr
Kind of have the same issue.. The entire brake sy... Oct 11 2020, 07:08 AM mb911
Kind of have the same issue.. The entire brake s... Oct 11 2020, 07:10 AM Medtner3
[quote name='iankarr' post='2858075' date='Oct 11... Oct 11 2020, 08:31 PM Medtner3
[quote name='iankarr' post='2858075' date='Oct 1... Oct 11 2020, 08:33 PM |
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