Ice Tea or DOT 3

I recently replaced the brake pads on all 4 wheels, I thought you might like to see
what drained out of my calipers and break lines.



This is what Drained out



This is normal DOT 3

 

[turbowop]

Needs m0ar lemon. /ubbthreads/images/graemlins/wink.gif

Why is this in tech? /ubbthreads/images/graemlins/rofl.gif

 

[Terry Posten]

I guess you could spin this to a "top tip" tech post.

Brake fluid will look like that after a couple years. Best to replace every year but only about .01 of us do that.

On a side note, I will be doing that exact thing tomorrow, all part of the ABS delete process.

BTW - I am using Prestone's fully synthetic DOT 3 fluid.

 

[curtis]

no wonder she's out of your league ....looks like you gotz an infection in the first cup of squirt. /ubbthreads/images/graemlins/rofl.gif



Don't take it personal its mine and Mark's job to talk the shitz after midnight /ubbthreads/images/graemlins/grin.gif

 

I screwe up by not putting this in General,

The Brake light wouldn't shut off even when the E- break lever is down or disconnected
so after taking off one of my rear calipers I compressed the piston
it reinstalled the pads and then put my caliper back on. After starting my and taking it for a spin the light finally shut off.

AWESOME!!!

Question:

If any of you here walk outside and start your car and it starts to smoke a little.
Where would start looking for the problem?

 

[turbowop]

Valve seals.

 

[Terry Posten]

You compressed the rear caliper piston? How well did that work for ya?

They screw in, not compress like the front. If you compressed the rears, they either did not move or you better go and get a new rear caliper.

 

I compressed the piston and watched the brake fluid squirt out of the side,

So I take it that both rear rotors are SMOKED?

When you use your e-brake it pulls a cable that engages a spring loaded lever on the rear caliper; that lever
actuates the piston and pushes the brake pad against the rotor,

That is the piston I am talking about, the rest of the caliper just floats toward the rotor as the pads wear out.

Maybe I am just a genius and I am explaining a broken rotor.

Someone Chime in here and tell me I am moron. /ubbthreads/images/graemlins/grin.gif

Because I don't think "NEWBIE" justifies my NEWBISM

 

[stevep]

The lever activates the piston via a threaded self-adjuster rod and a cam. The piston threads on to the rod and as the pad wear the rod is free to spin and take up the slack in the parking brake.

When you compress the rear piston you do it by screwing it back down the rod into the bore. If you just use a clamp it either doesn't move or you bend the rod and hose the rear caliper.

 

Looks like i need new rotors
/ubbthreads/images/graemlins/banghead.gif

 

[grocery_getter]

Why do you keep saying rotors? You ruined those calipers. That's what you need. Replacement rear calipers. Not rotors.

 

^Lol, i thought my english was becoming really bad or that i kept missing the clue or something, because he KEPT saying rotors.... /ubbthreads/images/graemlins/hsugh.gif


Anyway, you need replacement calipers, and it's pretty much your own fault. I mean, how the f*ck can you manage to compress the piston of the rear caliper? You must have used REAL force to be able to do that, and simply thinking about it would have ruled out the possibility of this being normal. And if you don't get that, you'd better take your car to a shop, instead of playing with crucial parts of the car and the lives of the people who get into that car....

 

[Nate]

Wow... spoken like someone who never makes a mistake. It happens.

 

I do believe that if you don't have any common sense about certain things, you shouldn't be playing around with crucial parts of the car. I'm a car mechanic, and you simply don't believe your eyes sometimes when people tried making repairs themselves, before coming to the dealership. There are more than enough ways to improve your technical skills, but screwing around with brakes that are on a road legal car, when you don't know what you are doing, isn't one of them. /ubbthreads/images/graemlins/crazy.gif

 

[onesickcrx]

What brake fluid do you guys use? I am useing Motul RBF 600

 

I'm using ATE Super Blue Racing Brake Fluid. Superb quality dot 4. The fluid is blue, so it's real easy to tell when you've flushed the older fluid, if you are bleeding them. Dry boiling point of 280 degrees C and a wet boiling point of 198 degrees C!!!!

 

Quoting galantgti:
^Lol, i thought my english was becoming really bad or that i kept missing the clue or something, because he KEPT saying rotors.... /ubbthreads/images/graemlins/hsugh.gif


Anyway, you need replacement calipers, and it's pretty much your own fault. I mean, how the f*ck can you manage to compress the piston of the rear caliper? You must have used REAL force to be able to do that, and simply thinking about it would have ruled out the possibility of this being normal. And if you don't get that, you'd better take your car to a shop, instead of playing with crucial parts of the car and the lives of the people who get into that car....




Thanks for making me feel like a complete moron without saying it in those exact words.I am glad someone finally chimed in

If you are as experienced as you say you are then you would know that you can use both a "LISLE" or "C-Clamp" to compress the front and rear CALIPER piston.

 

LISLE

C-CLAMP

 

[grocery_getter]

I hope my post didn't sound harsh. I was just pointing out that you kept saying rotors when it is calipers, as in you ruined those calipers, not rotors.

I hope you can find a good source for replacement rear calipers. The rear calipers are more expensive than the front calipers.


Quoting grocery_getter:
Why do you keep saying rotors? You ruined those calipers. That's what you need. Replacement rear calipers. Not rotors.

 

[stevep]

Quoting GVR4NGER694:

If you are as experienced as you say you are then you would know that you can use both a "LISLE" or "C-Clamp" to compress the front and rear CALIPER piston.



Please check the FSM. Your pictures aren't for the correct rear caliper.
You can't compress the rear caliper pistons with a clamp when they have an integral parking brake. You will damage them.
There are other types of rear calipers, like on the 2G DSMs, that compress just like the fronts but that's because their parking brake is external to the caliper.

As it states in the FSM:

6. Clean the piston; then use the special tool to thread the piston into the cylinder.
Be sure, at this time, that the stopper groove of the piston, correctly fits to the projection on the pad’s rear surface.

You are talking about the rear brakes on a GVR4, right?