[V6-12v] Weird pedal feeling after bleeding brakes.

[Frank Chapchuk]

Here is the link I used for the homade bleeder:
http://www.bmw-m.net/TechProc/bleeder.htm

It works really good. You can get all of the parts (except the master 
cylinder cap) at home depot. I got a used cap at the junkyard. I mounted the 
pressure gauge for mine right on the cap. Let me know if you have any 
questions.


----Original Message Follows----
From: Tom Christiansen <tomchr at ee.washington.edu>
To: v6-12v at audifans.com
Subject: [V6-12v] Weird pedal feeling after bleeding brakes.
Date: Sun, 04 Apr 2004 12:20:15 -0700

Folks,

I changed flex hoses on the rear and flushed, bled the brakes on all four 
last night. Now the pedal seems to travel about an inch further than it did 
before. There is still some brake modulation at or near the top of the pedal 
travel, but the brakes don't really become useful until the pedal is pushed 
about half the way down. The pedal is also not exactly what I would consider 
"rock hard". It doesn't sink but it feels a bit spongy. The brakes do work. 
I'm able to get the ABS going when stomping on the brakes doing 70 MPH (and 
obviously at lower speeds as well).

Here's what I did: I applied vacuum to the bleed screw using a MityVac. Then 
I opened the bleed screw. To my surprise, no fluid was sucked out (even 
though there was plenty of vacuum). The vacuum did drop, so I wonder if I 
sucked air through the threads on the fitting or something... Anyway. I had 
a friend stomp on the brake pedal while I applied vacuum to the screw and 
that got the brake fluid flowing. I newer got a steady stream in the hose 
connected to the pump, but at least I made sure there was always vacuum so 
no air should have gotten trapped in the brake lines. I continued to remove 
fluid until it flowed clear (the new fluid is clear). I then repeated the 
procedure for the left rear, right front, and left front in that order. I 
didn't change hoses on the front as the parts pusher had sold me the wrong 
hoses for the front.

Should I be concerned about the weird pedal feeling or is this normal 
operation? Is a power flush where pressure is applied to the reservoir a 
better option than the stomp pedal method?

Someone sent out a link to a site where someone turned a garden sprayer into 
a power flush thingy. Could this someone please post the link once more?

Thanks,

	Tom

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