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Help. Trying to bleed. No fluid coming out.
No idea what is wrong.
Open bleed screw. Helper pumps. Nothing comes out.
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1986 Bosch Icon Wipers coupe. |
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Location: Melbourne, Australia
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Clutch? Brakes? Headlights?
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Fleabit peanut monkey
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Nice one! Left handed headlight bleeders.
![]() Brakes. Last year you said you turned the bleeders 1/8 of a turn. Try a 3/8 of a turn.
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1981 911SC Targa |
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Bob is the man. As always.
I was opening it, and helper said pedal was down. But I wasn't opening it enough. Why was pedal going down then?
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1986 Bosch Icon Wipers coupe. |
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Fleabit peanut monkey
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Quote:
Explain what down means. Put that block of wood in there. Set a cadence. "Up" "OK" "Down" "OK" Pedal pumper does nothing without your instructions. You do not have a problem. You have a familiarity issue. Please watch the stream as I suggested. I will bet you get a couple of wee burp smidgeons of air. Make a mess.
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1981 911SC Targa Last edited by Bob Kontak; 05-17-2017 at 06:28 PM.. |
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The issue was the brake pedal was going down, yet nothing was coming out.
This really confused me. Anyways, once I opened the bleed screw more, fluid came out. All done! Did 10 pumps in the rear, and 5 up front. I didn't use much fluid at all. Maybe 1/4 of the liter.
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1986 Bosch Icon Wipers coupe. |
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The brake pedal should not be going down without a bleeder valve being open. This warrants further investigation if that is happening. After bleeding you should have a firm pedal that doesn't go down. If its firm, but going down, then you have a leak somewhere. If the pedal is soft (squishy, not firm) and can be pushed down, then you have air in system (a lot if you are able to move the pedal a substantial amount).
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Mark B '73 911S (long term ownership) '70 914-6 (long term project) '74 914-2.0 (sold) |
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Mighty Meatlocker Turbo
Join Date: Apr 2016
Location: North TexASS
Posts: 18,533
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Quote:
If the pedal can actually be depressed when the bleed screws are completely seated, and there are no external leaks or any air in the system, then the master cylinder piston seals are leaking internally and letting fluid past the piston (pedal pressure loss). |
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Yes, that was it. Thanks.
Once I opened it more, the fluid flowed freely. Once we were done, the pedal was again hard as a rock with the bleeders closed.
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1986 Bosch Icon Wipers coupe. Last edited by sugarwood; 05-18-2017 at 06:47 AM.. |
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2nd round rally, Blue Pills??
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Derrick |
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Mighty Meatlocker Turbo
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Fleabit peanut monkey
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Quote:
If you're havin' girl problems, I feel bad for you son I got 99 problems and my brakes ain't one. ![]() https://www.youtube.com/watch?v=j1ZObiu6kRU
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1981 911SC Targa Last edited by Bob Kontak; 05-18-2017 at 08:04 AM.. |
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Mighty Meatlocker Turbo
Join Date: Apr 2016
Location: North TexASS
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^^^
Ha ha - awesome! ![]() |
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undervalued member
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speed bleeders
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78SC PRC Spec911 (sold 12/15) https://www.youtube.com/watch?v=f7I6HCCKrVQ Now gone: 03 996TT/75 slicklid 3.oL carb'd hotrod 15 Rubicon JK/07.5 LMM Duramax 4x/86 Ski Nautique Correct Craft |
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^^^
I have those. But Rawknee showed me the way. (Not that way ya pervs) 20Psi Pressure Bleeder Tool. ![]() ![]() Just make sure the cap is back on before applying the pressure... ![]()
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Derrick |
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bleed
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Kyle - 1980 RoW non-sunroof 911sc - 3.2 Turbo, Mahle P&C, Carrillo Rods, Megasquirt II (Fuel Only for now), re-geared 3rd and 4th 930 gearbox, 2350lbs |
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Quote:
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Gary R. |
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Quote:
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1986 Bosch Icon Wipers coupe. |
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Fleabit peanut monkey
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1981 911SC Targa |
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Location: Melbourne, Australia
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Here's one thing I don't understand: the brake fluid reservoir has some air in it above the max fill level, and it also has a vent hose which you need to clamp before you can pressure-bleed the system. So how come, in normal operation, pushing the brake pedal doesn't just raise the fluid level in the reservoir, even to the point of pushing it out the vent tube?
I just bled my brakes for the first time after replacing my brake light switches. The pedal feels firmer, but I think it's still squishy. Maybe I need to think about the matter cylinder seals... |
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