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> Bleeding brakes sucks!!!
mightyohm
post Mar 30 2005, 12:24 AM
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I spent another 1-2 hours tonight bleeding the brakes on my 914. The rears bled fine but one of the fronts (which I rebuilt) is giving me what seems like an endless stream of tiny bubbles. I haven't checked the other front yet but I am guessing it will too.

How long is this supposed to take?? Is bleeding brakes a day long job after you rebuild the calipers and put them on dry?

I've been through over 2 quarts of brake fluid so far. I think just on this one caliper we pumped it about 100 times! Tiny little bubbles forever and ever.

Also I noticed that the assembly lube I used is dissolving into the brake fluid, I get some blue bubbles from time to time as well. That doesn't seem right. I used the Permatex stuff in the little packets that says you can use it on caliper pistons etc etc.

Anyone have a pressure bleeder I can borrow? (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif)
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IronHillRestorations
post Mar 30 2005, 06:59 AM
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Get a spare cap for the brake fluid resevior.
Get a tire valve & stem.
Drill a hole in the center of the resevior cap, the same size as the hole in a wheel (or measure the narrow part of the tire valve).
Pull the valve stem through the hole.
Remove the plastic screen in the resevior.
Fill the brake resevior completely, not to the fill line, all the way full to the bottom of the tube that holds the plastic screen.
Put on your new modified pressure bleeder cap.
Drain your air tank to 10 psi, for cheaper compressors setting the regulator at 10 psi may not work. If you put too much pressure in the system, you'll blow off the blue lines that connect the supply lines to the resevior, or worse.
Take a clip on air chuck and clip it on your new pressure bleeder cap.
Bleed the brakes, starting at the furthest bleeder from the master cyl, and finish at the bleeder nearest the master cyl.
Pump the pedal hard about ten times and repeat the proceedure.
Do not get brake fluid on painted surfaces it will ruin them.
If the pressure bleeder cap retains pressure, bleed it down before taking it off the resevior.
This works very well, and makes it a one person job.
Replace brake fluid every two years.
Properly discard used brake fluid.
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Posts in this topic
jkeyzer   Bleeding brakes sucks!!!   Mar 30 2005, 12:24 AM
Mueller     Mar 30 2005, 12:40 AM
!   You doing it by yourself? Either get a helper or ...   Mar 30 2005, 12:45 AM
Jenny   Jeff, if you need help let me know. I've never...   Mar 30 2005, 12:52 AM
kermit   Once you get a hold of a pressure bleeder, you may...   Mar 30 2005, 01:05 AM
McMark   I have a pressure bleeder as well you can borrow i...   Mar 30 2005, 01:22 AM
ejm  
  Mar 30 2005, 05:34 AM
9146986   Get a spare cap for the brake fluid resevior. Ge...   Mar 30 2005, 06:59 AM
Mueller   Hey Jeff, I brought the pressure bleeder to work ...   Mar 30 2005, 02:00 PM
jkeyzer   9146: My air compressor spits a lot of water with ...   Mar 30 2005, 02:00 PM
jkeyzer   <...   Mar 30 2005, 02:02 PM
Dave_Darling   Hey, Mike! My timing light is in Milpitas, ne...   Mar 30 2005, 03:11 PM
Mueller  
  Mar 30 2005, 06:04 PM
Dave_Darling   <...   Mar 30 2005, 09:03 PM
Mueller  

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