This is a discussion on Can I disconnect My Back Brakes? within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Originally Posted by mangostick Changing front cv's in that car was fun too.. yikes. Hopefully the new ones aren't that ...
why cant they just use a bolt on flange type like everyone else does? .. would be so much easier.
we're digressing pretty bad here lol..
so are those brakes done yet? (pokes with stick) ..
OBP 2010 5dr *traded*
SWP 2013 FRS
My name is Shawn, I'm a Devout Practicalist and I'm addicted to flat4's
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SUCH IS MANGO!
Speaking of axle nuts and brakes and such, I have a theory... This assumes I am not alone in noticing the passenger side axle comes off with great difficulty, whereas the driver side is decent to deal with, and the same is sometimes true of brake discs etc.: my theory is that it's sprinklers over time as the car is parked near curbs on the passenger side that make life difficult.
OP: Since you are doing brakes, unless something has changed, the way the brake pads (the friction material) are secured on the regular WRX and the WRX STi differs, in that the latter uses pins.
If your car does not use pins, search on this forum for a brake pad how-to thread, started by member Pace in antiquity. It has pictures and will give you a general idea. The number of pistons your brake setup uses does not matter much, in that you can simply use a spanner or the old pad to cover all of them and generate a single surface onto which you can apply gentle but firm force to compress the pistons into the caliper. Some manuals talk about slowly compressing each piston a little bit individually and varying which one gets pushed until they are all uniformly back in etc.
Just a point to consider, and I don't even know how valid it might be since I've not worked on 08+ cars at all..Originally Posted by Trainrex
Hydraulic brakes and systems are very very simple. On one end you have a device that pushes fluid, and on the other end you have a device that reacts to it. A braking system is the same. When you push the pedal, it makes a piston inside a little tube push fluid through small hoses that are attached to the calipers inside your wheels. When the fluid pushes into these calipers, they also have little pistons that push on friction pads. These friction pads (brake pads) are on each side of a brake rotor (disc). They squeeze the brake disc and slow the car down. Take a drinking glass. Hold it on the bottom with your left hand. With your other hand grab the top lip of the glass with your thumb on the inside of the glass and your index finger on the outside. Spin the glass with your left hand. When you clamp your two fingers on the top of the glass, you won't be able to spin the glass anymore. That in theory is how disc brakes work. When the friction materials on your brake pads wear down you will need to replace them. This is what your facing. Basically all you have to do is remove the brake pads, push the little pistons back in the caliper to make room for the new pads that have more friction material than your used pads, and bolt it back together. If the rotor (disc) is worn down, you replace them at the same time. It's all very very basic and simple stuff, but can save you hundreds, sometimes thousands of dollars when you do it yourself.
Also, a hydraulic system has to be free of air in the system. It is a sealed system. If air is introduced, the system cannot push fluid. That's where bleeding comes in to play. If no brake lines are disturbed, no fluid lost, and no air is introduced into the hydraulic system, you will not have to bleed the brakes.
Last edited by Trainrex; 02-03-2011 at 10:01 AM.