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florida 914 |
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#21
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Newbie ![]() Group: Members Posts: 29 Joined: 29-September 10 From: Salem, OR Member No.: 12,227 Region Association: Pacific Northwest ![]() |
Sorry, folks, for asking yet another question about bleeding brakes, but I can't find the answer to this specific question and am at wits end.
I have a 1971 914. I am only able to get about a quarter of a pedal, i.e. it is off the floor, but only just, and no more improvement no matter how much we go through the routine. What seems weird is this: when I open the rear bleed nipples, the pedal goes to the floor (as my assistant pushes), but nothing like that happens on the front. I don't see air being pushed through on any corner any more, but there is fluid moving on all four corners (though probably more on the back than the front). And the pedal never pumps up better than a quarter or so even with all nipples closed. We have installed rebuilt calipers, new pads, new flex lines, and a new master cylinder (in fact, we tried a second new master cylinder on the theory that the first may have been faulty). As far as I can tell there is no clog in the fixed lines (we checked the front especially). Any suggestions? Thanks! |
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florida 914 |
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#22
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Newbie ![]() Group: Members Posts: 29 Joined: 29-September 10 From: Salem, OR Member No.: 12,227 Region Association: Pacific Northwest ![]() |
Okay, I have now "bench bled" the MC, though I did it while it was on the car. That seemed to be getting lots of air out, so I thought I was on the right track. But I am still in the same situation.
Here is one thing I can't figure out: when we pump up the rear and then open the bleed valve the pedal goes to the floor. It also has a lot of flow on both sides of the rear. But that does not happen on the front. To the person pushing the pedal the pedal feels no different front from rear. It also does not have nearly so much flow in the front as the back (on either side). When I was bleeding the MC at the cylinder both front and back seemed the same. It seems like the pedal should go to the floor when the valve is opened, no? |
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Lo-Fi Version | Time is now: 18th June 2024 - 06:26 AM |
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