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Unread 02-13-2013, 06:57 PM   #31
ratmonkey
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have you inspected the calipers? are you using the same ones you had on there? not sure why you disconnected all the brakes for a stock axle swap.

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Unread 02-13-2013, 11:52 PM   #32
ZJMatt
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Quote:
Originally Posted by ratmonkey View Post
have you inspected the calipers? are you using the same ones you had on there? not sure why you disconnected all the brakes for a stock axle swap.
Yes, same ones that were on my jeep. The parts jeep was RUSTY and I couldn't get the bleeders to turn, so just put my old calipers on the new axle.
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Unread 02-14-2013, 02:07 AM   #33
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I know you already went over this. But I don't think you looked at the schematic properly. Yes, your valve only has 2 outputs. But, there is a third. It is plugged up. You need to remove that plug and put the other front line there. Your brakes won't work right if they're not hooked up right.
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Unread 02-14-2013, 05:41 AM   #34
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There are two different proportioning valves. One does not have the second front output.
Mine has a check valve in that position, not a plug.
You don't need to utilize all three even if you have them, the stock set up didn't.
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Unread 02-14-2013, 08:28 AM   #35
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Originally Posted by ratmonkey View Post
There are two different proportioning valves. One does not have the second front output.
Mine has a check valve in that position, not a plug.
You don't need to utilize all three even if you have them, the stock set up didn't.
Finally... someone to back me up. I get so sick of the sarcasm and witty comments on this forum sometimes. Maybe now that someone with umpteen million posts agrees with me people will actually believe me when I say its right.

I put about 70 miles on it last night. The pedal really doesn't feel that bad. I will be looking into the front drivers caliper though... not sure its working properly.
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Unread 02-17-2013, 12:49 AM   #36
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I'm beginning to think it's a vaccuum problem.

As I've been saying, when driving the jeep, the pedal feels normal. I tested that today by putting my left foot behind the pedal and pushing it, the pedal never touched my foot, even under moderately-hard braking. Today I was sitting in a parking lot talking with a friend and not thinking of it, had my foot on the brake. Then I realized it was on the floor. Also like I said the pedal does feel a little strange if you're say, creeping through a parking lot and pull in to a spot. Could it be because it's producing less vaccuum at idle, than normal driving?
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Unread 02-17-2013, 01:14 AM   #37
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Vacuum is higher at idle. When the engine is pumping more air out, the manifold pressure decreases.
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Unread 02-17-2013, 02:51 AM   #38
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let's revisit the vacuum issue. I know you checked the valve on the booster. But I just wanted to make sure of something. Does it allow air to pass through in only one direction? When you press on the brakes, do you hear a hissing noise? Do your heater controls all work properly (they use vacuum pressure). Even if the valve seems fine, you might want to replace it anyway. It only cost a couple of bucks. Testing it by blowing into it is not really a good test. You're not going to create even close to the pressure the engine produces.
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Unread 02-17-2013, 09:53 AM   #39
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Quote:
Originally Posted by Pugulis View Post
let's revisit the vacuum issue. I know you checked the valve on the booster. But I just wanted to make sure of something. Does it allow air to pass through in only one direction? When you press on the brakes, do you hear a hissing noise? Do your heater controls all work properly (they use vacuum pressure). Even if the valve seems fine, you might want to replace it anyway. It only cost a couple of bucks. Testing it by blowing into it is not really a good test. You're not going to create even close to the pressure the engine produces.
Heat works great. By blowing into it, air only goes in one direction. Haven't noticed a hissing noise because the jeep is kinda loud... what exactly is the valve called?
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Unread 02-18-2013, 06:52 PM   #40
ratmonkey
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the pedal would get hard and you'd have almost no braking force if there was a vacuum leak. been there, done that.
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