now you're just being a greasehead

11/3/2005 7:16:54 PM

stupid beaner

11/3/2005 7:18:32 PM

Just as a couple examples, a Ford Explorer mechanical parking brake does not use the rear caliper used by the hydraulic service brakes. A Ford F450 from the mid-90's mounts the parking brake on the output of the transmission, way away from the rear brakes. Most vehicles use a mechanical linkage in the rear to engage the caliper or the shoes in a drum setup. I'm sure most folks here know this, and I'm sure esgargs is just trolling, so I'm not gonna get all upset. It is the internet after all.

11/3/2005 7:33:01 PM

In fact, most don't

some do

11/3/2005 7:44:00 PM

using the hydraulic system doesnt make sense for an emergency brake, as they are designed to be used in the case of loss of hydraulic pressure.



[Edited on November 3, 2005 at 8:47 PM. Reason : -]

11/3/2005 8:44:44 PM

all cars less than 10 years old have backup systems anyway.

And I skipped on one thing...and you idiots can't let that go.

I am saying that if you run your car with the parking brake on for considerable time you'll ruin the brakes.

11/3/2005 8:52:29 PM

buy a honda

11/3/2005 8:53:48 PM

yeah.. the backup system is the mechanically actuated emergency brake.

11/3/2005 9:04:14 PM

Quote :

"I am pretty sure if you drive with the e-brakes engaged you're just gonna break the assembly in a few"

ahahhhah

[Edited on November 3, 2005 at 9:19 PM. Reason : no]

11/3/2005 9:18:56 PM

Quote :

"I am saying that if you run your car with the parking brake on for considerable time you'll ruin the brakes"

depends on the car, my mom's infiniti's parking brake uses some crazy ass mechanical linkage to literally screw the piston out of the caliper and actuate the brake...might be normal but i dont really know. most other cars i've worked on have a disc/drum combo in the rear and the drums are mechanically actuated by the 'parking brake'.

who the fuck would drive around with the parking brake for a considerable time anyways??

11/3/2005 10:50:27 PM

Well I think he's implying that it would be driven accidentally with the parking brake engaged. But even so, between the stench from the pads/shoes and the bright ass red light in your face, it's unlikely you could drive long enough to do any damage.

Also, gargs, you won't "lose your brakes completely" and go flying off the highway into oblivion, you might get some air in the lines that will result in the brakes acting inconsistently and seeming to have spots where they slip, then grab. But that's nothing that can't be fixed with a flare wrench to crack the bleeder screws and a buddy. Of course, that statement isn't directed at you gargs, since I'm guessing you have no buddies, nor do you have any wrenches.

(yeah, i stooped to his level, i can't help it )

11/3/2005 11:23:22 PM

Try it

11/3/2005 11:27:11 PM

Even though you're supremely confident in your google research results, you're making a blanket statement that involves too many variables: vehicle make, model, disc vs. drum brakes, size of aforementioned brakes, length of the trip with the e-brake on, etc. I've met people who've been driving with their e-brake on for quite some time. People at a gas station or hardware store, you walk by their car and it reeks, so you say, "hey maybe you should check your e-brake" and they go, "oh my gosh there's no telling how long that's been on." but no one i've ever met or talked to has had critical brake system failure, or any damage for that matter other than worn pads, from driving with e-brake engaged.

Just b/c something is written on the internet doesn't make it true, much less true "across the board." There are also sites that tell you to drive straight to you mechanic if your check engine light comes on. Stop being a web mechanic and get your hands dirty before you argue automotive topics with people who know how to use tools. (no, a keyboard does mpt count as tool).

I'm not trying to be a know-it-all, I'm no professional mechanic, no specialist, just a guy who knows a thing or two about a thing or two trying to help other people out, and who's humble enough to admit when he's wrong. But damn you get under my skin, and I'm sure that makes you very happy.

[Edited on November 3, 2005 at 11:39 PM. Reason : .]

11/3/2005 11:38:52 PM

Try it

11/3/2005 11:47:48 PM

why dont you try it gargs?

11/3/2005 11:58:38 PM

Why should I?

I know my brake system would get busted.

You people are confident it won't...so try it on your cars.

11/4/2005 12:02:49 AM

you obviously dont know shit.

[Edited on November 4, 2005 at 12:23 AM. Reason : prove me wrong ]

11/4/2005 12:21:20 AM

well then

drive with your parkig break on at i-40

11/4/2005 12:25:17 AM

"busted"?? Seriously, I know you aren't a mechanical engineer or anything but god damn, think about it for a little while and report back..it won't break anything. Maybe it'll wear something out pretty quickly, which is obvious, but it wont break shit, so stfu

11/4/2005 12:27:52 AM

well then

why don't you do it to your car and report back

11/4/2005 12:31:36 AM

take your weak ass trolling back to chit chat.

11/4/2005 12:33:39 AM

i haven't adjusted my parking brake since the rear discs/drums were changed thus i have no parking brake...so it wouldnt do shit

11/4/2005 12:35:08 AM

oh you showed me the light alright, beethead

11/4/2005 12:35:52 AM

you still haven't proved anybody wrong here or described in detail exactly what is going to break, bust, explode or whatever else google tells you is going to happen

11/4/2005 12:36:32 AM

I checked google like 2 times in this thread...and you still haven't shown me how I am wrong.

11/4/2005 12:37:07 AM

if you can't explain it your damn self then i dont care what you have to say, i'm not reading thru your links from google to try to figure out what fucked up form of logic they used in their wrong explanation of how shit works. everybody here knows you're wrong, hell you probably know you're wrong too but are having fun still talking about it

11/4/2005 12:41:25 AM

I mentioned hydraulic parking brake ONCE and you can't stop railing on it.

Show me what else I am wrong about

or

end the argument with the premise that you didn't prove me wrong.

11/4/2005 12:44:55 AM

what is your argument exactly? i'm not railing on shit, i just got into this thread a few mins ago

11/4/2005 12:45:47 AM

I said that if you keep driving with your parking brake on, eventually all your brakes are gonna fail.


What I learnt later was that some newer cars have 2 rear brake mechanisms just for this...

Still that's the only thing I have said in this thread.

11/4/2005 12:47:22 AM

lol...dude you still haven't answered how or why, you're just saying its going to happen

11/4/2005 12:52:54 AM

The brake oil is gonna boil up.

11/4/2005 12:53:20 AM

you are indeed a fucking moron

11/4/2005 12:55:34 AM

k

you showed me the light.

11/4/2005 12:57:50 AM

Quote :

"I know my brake system would get busted"

Quote :

"The brake oil is gonna boil up."

so the brake fluid boiling up is going to "bust" your brake system...I hope you aren't serious

11/4/2005 1:08:36 AM

there you go, genius.

11/4/2005 1:09:12 AM

i'm still not sure if you're serious or not

11/4/2005 1:09:34 AM

umm

if the brake fluid boils...or turns into gas, you won't have anything to transmit the hydraulic force/pressure.


Are you serious?

11/4/2005 1:12:12 AM

Anyway I am done with this thread.

11/4/2005 1:16:56 AM

from what i remember from thermo, liquids under high pressure don't boil very easily first off. there's no way you could put enough heat into the system to actually pull that off. the forces you'd need to create that much heat from friction would easily stop the car and overcome pretty much any motor if the vehicle was RWD. even if you did manage to get the fluid to boil, its sure as fuck not going to "BUST" anything...itd be the equivelant of driving around while holding the brake pedal down, which wont bust shit...sure your brakes wont last long, but it wont break anything. just ask my dad whom drives with both feet and basically drives around with the brake slammed down half the time...it doesnt break anthing (but is quite possibly the most annoying thing ever, next to your car logic)

and, i'm done with this thread...you and your car logic are wrong whether i can explain why or not

[Edited on November 4, 2005 at 1:22 AM. Reason : brake break brake break]

11/4/2005 1:22:20 AM

Quote :

"FLUID RELATED BRAKE FAILURES From time to time we hear about reports of "unexplained" brake failures that caused accidents. When the vehicle’s brakes are inspected, no apparent mechanical fault can be found. The fluid level is normal, the linings are within specifications, the hydraulics appear to be working normally and the pedal feels firm. Yet the brakes failed. Why? Because something made the brakes hot, which in turn overheated the fluid causing it to boil. The underlying cause often turns out to be a dragging rear parking brake that does not release. But that’s another story. The same kind of sudden brake failure due to fluid boil may occur in any driving situation that puts undue stress on the brakes: a sudden panic stop followed by another, mountain driving, towing a trailer, hard driving, etc. A case in point: A child was killed in an accident when the five-year old minivan with 79,000 miles on it his parents were driving suffered loss of pedal and crashed while the family was driving in the mountains of Washington state. Fluid boil was blamed as the cause of the accident."

http://www.aa1car.com/library/bfluid.htm

I am done for real now.

[Edited on November 4, 2005 at 1:28 AM. Reason : http://www.hayesdiscbrake.com/hayesu_product1.shtml]

11/4/2005 1:26:31 AM

Quote :

"there's no way you could put enough heat into the system to actually pull that off."

yeah there is, ive had it happen.

LF caliper stuck on my ranger at highway speeds, boiled the fluid, no hydraulic pressure.

brakes work on friction, friction makes heat, metal transmits heat, cars are (some) metal.

not as impossible as youd think.

11/4/2005 8:40:28 AM

aha, so this is how to get 87000 posts.....





The difference between the boiled fluid in the van and driving with the e-brake on is that the e-brake is only in the rear. So even if it did boil the brake fluid, it would only be at the rear, and the pedal would still work the front brakes. And hell, the e-brake would still be engaged, so what's the difference?

11/4/2005 8:42:59 AM

ding ding ding

11/4/2005 9:13:39 AM

I would think the rotors would be red hot and pretty useless before any fluid starts boiling..

11/4/2005 11:42:40 AM

depends on the age of the fluid. it gradually absorbs moisture from the air over its lifespan.

regular new DOT 3 boils at 401*F

steel becomes red hot at at least 1200*F

so you can see that is not the case

11/4/2005 11:49:03 AM

then account for the heat needing to be transferred through the pads, pistons, etc..

I was just thinking back to that SRT4 (or plain neon?) video posted long ago where he kept braking from 100mph+ over and over while highway dragging his buddy

11/4/2005 11:52:20 AM

Quote :

"I would think the rotors would be red hot and pretty useless before any fluid starts boiling.."

Not unless you use really really low grade rotors.

Quote :

"So even if it did boil the brake fluid, it would only be at the rear, and the pedal would still work the front brakes"

GTFO now.

Quote :

"then account for the heat needing to be transferred through the pads, pistons, etc.."

It's not unimaginable...a lot of heat is produced when braking and metal conducts heat.

[Edited on November 4, 2005 at 12:22 PM. Reason : .]

11/4/2005 12:18:47 PM

This reminds me of some of the old threads where jsquared and State409C went at each other.

Except with much, much less technical knowledge.

11/4/2005 1:42:00 PM

its not an emergency brake its a parking brake. you DONT want to use it at high speeds.. except maybe very carefully, and as a last resort, but its not likely to be necessary as most all modern brake systems run on two seperate hydraulic circuits..

11/4/2005 5:37:19 PM

your parking brake is the emergency brake

11/4/2005 5:38:33 PM