How are the brake lines routed?
Joined: Jan 2003
Posts: 2,184
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From: Granville OH
All brake systems are paired in front and paired in back. In other words, the two front are paired together. They are pumped by two chambers in the master cylinder. One chamber feeds the front brakes, and the other feeds the back. It is done this way so that if there is a hydraulic leak in one system, the other system can still stop the car.
There is also a proportioning valve that adjusts the relative pressure between front and back to keep a set of wheels from locking up. Vehicles are designed to provide more stopping power to the front brakes because of the dynamic weight distribution during a stop. Just like hand brakes on a bicycle, the front brakes can stop the vehicle much better than the back brakes.
If you want to learn all about it, as well as learn how the anti-lock and power units work on our brakes, check this out:
http://auto.howstuffworks.com/brake.htm
There is also a proportioning valve that adjusts the relative pressure between front and back to keep a set of wheels from locking up. Vehicles are designed to provide more stopping power to the front brakes because of the dynamic weight distribution during a stop. Just like hand brakes on a bicycle, the front brakes can stop the vehicle much better than the back brakes.
If you want to learn all about it, as well as learn how the anti-lock and power units work on our brakes, check this out:
http://auto.howstuffworks.com/brake.htm
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Joined: Mar 2005
Posts: 400
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From: Bethesda
Thanks all for the info , the 2nd reply is what i was looking for,
btw as the 2nd reply implies not all brake systems are paired in the same way, Ive had cars with dual master cylinders, and the s2k is a similar setup to what my previous cars had, where each master cylinder would have cross control so to say.
But thanks again, to both
btw as the 2nd reply implies not all brake systems are paired in the same way, Ive had cars with dual master cylinders, and the s2k is a similar setup to what my previous cars had, where each master cylinder would have cross control so to say.
But thanks again, to both
Joined: Jan 2003
Posts: 2,184
Likes: 95
From: Granville OH
Originally Posted by hecash,Jul 7 2005, 04:51 PM
The S2000 braking sytem has a little different configuration than the classic system with proportioning valve alone. The full diagram is in the back half of section 19 of the service manual.
Two supply lines come out of the master cylinder into the abs modulator unit. It appears from the diagram that one branch manages FL and RR while the other manages FR and RL. The modulator unit is controled by the the ABS Control Unit (computer). The control unit is fed information by the wheel sensors and it employes that information to manage the engagement of abs pulsing, the type of abs pulsing and proportion management. There is a proportioning control valve but it only proportions independantly between the two rear calipers.
I only know this because I'm on my third master cylinder. I hope that I don't have to change a fourth. It's a messy job.
Two supply lines come out of the master cylinder into the abs modulator unit. It appears from the diagram that one branch manages FL and RR while the other manages FR and RL. The modulator unit is controled by the the ABS Control Unit (computer). The control unit is fed information by the wheel sensors and it employes that information to manage the engagement of abs pulsing, the type of abs pulsing and proportion management. There is a proportioning control valve but it only proportions independantly between the two rear calipers.
I only know this because I'm on my third master cylinder. I hope that I don't have to change a fourth. It's a messy job.
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