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05-23-2016, 03:15 AM | #1 |
Drives: 2014 Yaris SE Join Date: Apr 2014
Location: NYC
Posts: 1,076
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Drum brakes
Interesting take on one of my pet peeves, drum brakes:
http://www.cheatsheet.com/automobile...ed-today.html/ The author's take is that their use is not a matter of cost but an attempt to increase dealership usage. Not sure if I agree but I can't think of a valid reason why they would still be used. |
05-23-2016, 11:49 AM | #2 |
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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Let s see let's see....I'm going for CHEAP since I almost never need to do the brakes front or rear.
Now the wife....
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05-23-2016, 12:01 PM | #3 |
Drives: '15 Yaris SE 5MT Join Date: Jun 2014
Location: Arizona (USA)
Posts: 1,058
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I'm not sure how much rear-discs cost versus drums to install at the factory, but it seems strange to me that manufacturers would install such outdated/inferior systems from a servicing and general-design perspective. My 2000 Accord had front disc and rear drums, and didn't feel as responsive during breaking as my 4-disc SE does (it actually took some getting used to at first) - nor did the 2015/2016 Yaris L model rental that I drove recently with rear drums. No more rear drums for me.
I can really appreciate the relative simplicity/reliability of the late 90's, early 2000's technology that the Yaris mostly employs even today, but drums are not simpler (quite the opposite), nor are they more reliable - and date waaaay back there on the automotive timeline. |
05-23-2016, 01:13 PM | #4 | |
Drives: 2014 Yaris SE Join Date: Apr 2014
Location: NYC
Posts: 1,076
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Quote:
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05-23-2016, 01:36 PM | #5 |
rear discs is life. I hated working on my rear drums when i had them. HATED.
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05-23-2016, 01:47 PM | #6 |
Isn't it just a matter of not being needed on these cars in addition to lasting longer than discs (thereby saving the owner money over the life of the car)?
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05-23-2016, 02:54 PM | #7 |
Drives: 07 HB YARIS, 15 JUKE, 00 TUNDR Join Date: Mar 2007
Location: Johnstown, PA
Posts: 320
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We almost never did any rear drum work, when I was at Toyota. If someone called up pricing rear drums, we often questioned mileage, then if the shop they were at was reputable. That being said, I hate my rear drums, but they still will lock up my wheels, on my Yaris.
Now my 2000 Tundra, that is a different story. I will probably swap those to discs. They never, ever worked right, ever.
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05-23-2016, 03:07 PM | #8 |
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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The rear drum brakes on the wifes Camry space backspace are still good with 150,000 miles no 131,000 miles on them.
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05-23-2016, 04:43 PM | #9 |
175000km on mine and i hate drums grr
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05-23-2016, 05:41 PM | #10 |
Drives: 2009 5-door, 5-speed Join Date: Sep 2011
Location: White Rock BC
Posts: 687
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I've often wondered about drums myself on light-duty vehicles. They have way more components than discs, which would presumably cost more to manufacture. That being said, drum brakes can be manufactured by an outside supplier and easily bolted on by a robot in one piece. This may be where the main cost savings come from. Also may use less over-all material than comparable discs. Since drums typically only come on cheaper vehicles, it probably comes down to cost.
There are other benefits to drums: -less drag (in theory no, but in the real world yes due to lack of maint) -less rotating mass = better mpg -smaller packaging -longer life The cons are mainly: -brake fade/tug. There is a reason why they aren't used on the front. That being said, I've only managed to overheat them once and that involved 20min of racing on R-comps. And it was just a very mild overheat, a little fade and some squealing. For street use, it's not an issue on the Yaris. -don't work well when submerged. Not really a Yaris issue. -need to be adjusted manually On the last point, if you aren't having your rear brakes adjusted you should get it done. It will greatly improve the life of your front brakes, and may improve the life of the rear (prevents tapered wear of the linings). My biggest complaint for drums is from autoX etc. The brake pedal feel is dependent on how you have your drums adjusted. It's far less consistent than discs. Cheers. |
05-23-2016, 06:01 PM | #11 |
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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My VWS in the 60 and 70s had four wheel manually adjustable drum brakes, non power. I very easy on brakes but only got like 50k out of the fronts.
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05-23-2016, 11:34 PM | #12 |
Drives: 2006 Yaris RS 3-Door Join Date: Feb 2016
Location: YYZ
Posts: 329
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When I was living in Europe, all but the most low end cars had all round disc brakes. And of course the far pads needed changing at times, although less often than the fronts. To be honest, unless you're actually into racing, I don't see a huge benefit in having rear disc brakes, plus with drum brakes the shoes last for a very long time.
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05-24-2016, 02:37 PM | #13 |
Drives: Sedan 07 Join Date: Oct 2012
Location: Asia
Posts: 478
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Disc brakes in the front are important, but disc brakes at the back are mostly for anti-brake fade. and while city driving won't need this benefit 99% of the time, driving fast on the mountains combined or highways with curved roads will probably benefit from this, although not as much as you'd expect.
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05-24-2016, 10:58 PM | #14 |
Drives: Yaris Sedan 5MT Join Date: Oct 2008
Location: SoCal
Posts: 865
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Ehh, small car.
On a different note, I did adjust the parking brake on both sides, improved braking a lot.
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10-05-2016, 08:58 PM | #15 |
I've made a post!
Drives: silver blue yaris Join Date: Oct 2016
Location: palo alto
Posts: 1
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has anybody changed out drum brakes for disc brakes on the 4 door 2011 yaris
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