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Brake/clutch bleeding nipple size

9.2K views 10 replies 5 participants last post by  DannoXYZ  
#1 ·
I wanted to bleed the brakes on my 1995 corolla but the nipples are corroded so i want to replace them. Does anyone know what size nipples are used in a 1995 corolla? Pic related: it's my Corolla!
 

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#6 ·
Even the McParts stores carry those, and I was going to get some for a car one time, possibly my old '93, but they told me that they didn't sell them in my car's size.

I was always under the impression that these were just for bleeding, and that you needed to somehow put the originals back in once finished. But the dust caps make them appear to be a permanent installation.

I usually just pump them and then wedge a 2x4 between the pedal and the seat bottom, and then I open the bleeders and try to shut them before the bleed-stream subsides. But nothing beats having two people.
 
#7 ·
They work just like regular bleeders, but they have internal check-valves so fluid only flows one-way outwards. One-man procedure goes like this:

1. Add fluid to resevoir
2. Push hose onto bleeder nipple, dangle end in cup
3. Unscrew bleeder screw about 1/2 to 3/4 turn
4. Gently step on brake-pedal 2-5 times to push out old fluid
5. Tighten bleeder screw, remove hose
6. Go back to #1 for next wheel

That's it! No need to coordinate opening-pumping-closing-release dance with assistant. No bubbles working their way backwards when you miss-time a step.
 
#8 ·
I guess it's just the thing for racers who need to purge off old over-heated brake fluid often.
 
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#10 ·
Isn't there a chance that air will be sucked back in around the threads? That's what I don't like about these one-man-job setups.

...and it's depressing to think that so many people can't find a friend or relative that's willing to sit in the drivers seat for 5 minutes and press the brake pedal!