Question on brakes

Reply
 
LinkBack Thread Tools Display Modes
Old 28 Sep 2005, 07:36 pm   #1 (permalink)
tj
Guest
  • Posts: n/a
  • User Status:


Default Question on brakes

I am about to do front brakes on my Camry. It stops nice, but the pads are worn really thin. Since it stops smooth I was thinking of just doing pads and skipping the rotors. Any thoughts?
  Reply With Quote
Old 29 Sep 2005, 12:47 am   #2 (permalink)
johngdole@hotmail.com
Guest
  • Posts: n/a
  • User Status:


Default Re: Question on brakes

>From www.motor.com, September 1999 "Mastering the Basics, Brake
Systems"

"Carmakers almost universally recommend against machining the surfaces
of brand-new rotors and drums or refinishing rotors unless they're
worn or
scored beyond certain limits. All carmakers do, however, specify
definite
surface finish requirements for rotors and drums."

January 2003, "Brake Rotor Maintenance"

"Many vehicle manufacturers have stated that the rotors on their
vehicles do not require resurfacing as a matter of routine during brake
pad replacement. General Motors and Ford both recommend reusing rotors
"as is" if they meet specifications for minimum thickness,
thickness variation, parallelism and runout, no pedal pulsation is
present and they aren't badly scored. GM has also stated that rotor
grooves of up to .060 inch are acceptable if the rotor meets all other
specifications."

If your rotors meet the above criteria and manufacturer's specs, they
are candidates for use "as-is". I don't resurface good rotors because
that takes away metal that conducts heat.

OEM pads are fine if they are Akebono. NBK ones are much less
satisfactory. You may get either or some other brand depending on who
is the lowest bidder this round. I would order Akebono aftermarket
directly.


tj wrote:
> I am about to do front brakes on my Camry. It stops nice, but the pads are worn really thin. Since it stops smooth I was thinking of just doing pads and skipping the rotors. Any thoughts?


  Reply With Quote
Old 29 Sep 2005, 10:15 am   #3 (permalink)
Vash the Stampede
Guest
  • Posts: n/a
  • User Status:


Default Re: Question on brakes

On Thu, 29 Sep 2005 00:36:22 +0000, tj wrote:

> I am about to do front brakes on my Camry. It stops nice, but the pads are worn really thin. Since it stops smooth I was thinking of just doing pads and skipping the rotors. Any thoughts?<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">


<Snipping the HTML 'cause it's useless...>

Generally, Toyota specifies 10-12MM of thickness as a minimum. Take a 12MM
wrench, if it doesn't slip over the rotor you're good to go.

Also, if the rotor is grooved, it SHOULD be machined or replaced, but I
just did the pads on my Supra (14mm thickness and a groove around the
lip...) and they work fine. Be aware, though, if you do this the pads will
wear more quickly.

  Reply With Quote
Old 29 Sep 2005, 09:24 pm   #4 (permalink)
Wolfgang
Guest
  • Posts: n/a
  • User Status:


Default Re: Question on brakes

yup just replace the pads - grease the pins when ya put it back together.
"tj" <trichar3@rochester.rr.comcom> wrote in message news:aGG_e.15921$Xl2.3813@twister.nyroc.rr.com...
I am about to do front brakes on my Camry. It stops nice, but the pads are worn really thin. Since it stops smooth I was thinking of just doing pads and skipping the rotors. Any thoughts?
  Reply With Quote
Old 02 Oct 2005, 12:11 am   #5 (permalink)
Steve H
Guest
  • Posts: n/a
  • User Status:


Default Re: Question on brakes

While just replacing the pads will work; keep in mind that:
Rotors wear more than just a groove. they may be thinner at the edge
than the middle
A new set of pads on a glazed rotor may squeal, so you have to take them
off again and turn them anyway.
Rotors that have a slight warp may not be felt with the old pads but can
be felt with the new pads.

The ASE standard it to measure every conceivable angle and check them before
deciding to turn the rotors. I have long changed my attitude that rotors are
going to wear; if done properly you get 2 or 3 pad sets off a rotor and that
it's a small expense to turn them during the brake work and replace them
when necessary. I prefer to do the brake job once.



--
Stephen W. Hansen
ASE Certified Master Automobile Technician
ASE Undercar Specialist


http://www.troublecodes.net/technical/

"tj" <trichar3@rochester.rr.comcom> wrote in message
news:aGG_e.15921$Xl2.3813@twister.nyroc.rr.com...
I am about to do front brakes on my Camry. It stops nice, but the pads are
worn really thin. Since it stops smooth I was thinking of just doing pads
and skipping the rotors. Any thoughts?


  Reply With Quote
Old 02 Oct 2005, 07:25 am   #6 (permalink)
Vash the Stampede
Guest
  • Posts: n/a
  • User Status:


Default Re: Question on brakes

On Sun, 02 Oct 2005 05:11:02 +0000, Steve H wrote:

> While just replacing the pads will work; keep in mind that:
> Rotors wear more than just a groove. they may be thinner at the edge
> than the middle
> A new set of pads on a glazed rotor may squeal, so you have to take them
> off again and turn them anyway.
> Rotors that have a slight warp may not be felt with the old pads but can
> be felt with the new pads.
>
> The ASE standard it to measure every conceivable angle and check them before
> deciding to turn the rotors. I have long changed my attitude that rotors are
> going to wear; if done properly you get 2 or 3 pad sets off a rotor and that
> it's a small expense to turn them during the brake work and replace them
> when necessary. I prefer to do the brake job once.


Hey, Steve:

on my Supra, i did the fronts, complete: new rotors, new pads, new
calipers.

The car is being put up for the winter either next week or the week after,
but I had some squealing, so I just did the rear pads. New pads and bled
the system. Left the old rotors.

Went for a nice autumn ride, hit the brakes and discovered it was the
FRONTS that were squealing!!! The rears work fine, BTW...

  Reply With Quote
Old 02 Oct 2005, 12:46 pm   #7 (permalink)
Steve H
Guest
  • Posts: n/a
  • User Status:


Default Re: Question on brakes

Brakes are like that, I just redid the fronts on my Taurus and is noisy. As
it is a work car, I'll fiddle with it later. I now the braking action is
good.

On your car; what brand pads? I prefer Wagner thermo quiets. Harder pads
squeal more often. Did you lube the back of the pads or even glue them?
Squeal is caused by the pads vibrating in the brackets. Anti rattle springs
or clips in place? I prefer not to use the multi layered shims in the pads;
I've seen too many slip out so I remove all of them and glue the pads in.
Did the rotors have a "crosshatching" finish (non-directional) or did they
look like they just came off the lathe?
On a Volvo we use OEM parts when the customer can afford them for that is
the only way to guarantee no squeal.

But on Volvo's VW's BMW's the rotors wear as fast as the pads made of a real
soft metal Expect to see this more and more American and jap cars too.
On my "new" camery the brakes are starting to get noisy and it's still
factory OEM


--
Stephen W. Hansen
ASE Certified Master Automobile Technician
ASE Undercar Specialist


http://www.troublecodes.net/technical/

"Vash the Stampede" <Trigun@2am.cn> wrote in message
newsan.2005.10.02.12.37.59.485081@2am.cn...
> On Sun, 02 Oct 2005 05:11:02 +0000, Steve H wrote:
>
>> While just replacing the pads will work; keep in mind that:
>> Rotors wear more than just a groove. they may be thinner at the edge
>> than the middle
>> A new set of pads on a glazed rotor may squeal, so you have to take
>> them
>> off again and turn them anyway.
>> Rotors that have a slight warp may not be felt with the old pads but
>> can
>> be felt with the new pads.
>>
>> The ASE standard it to measure every conceivable angle and check them
>> before
>> deciding to turn the rotors. I have long changed my attitude that rotors
>> are
>> going to wear; if done properly you get 2 or 3 pad sets off a rotor and
>> that
>> it's a small expense to turn them during the brake work and replace them
>> when necessary. I prefer to do the brake job once.

>
> Hey, Steve:
>
> on my Supra, i did the fronts, complete: new rotors, new pads, new
> calipers.
>
> The car is being put up for the winter either next week or the week after,
> but I had some squealing, so I just did the rear pads. New pads and bled
> the system. Left the old rotors.
>
> Went for a nice autumn ride, hit the brakes and discovered it was the
> FRONTS that were squealing!!! The rears work fine, BTW...
>



  Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 04:18 pm.

Attribution:
Autoblog
Powered by Yahoo Answers



ToyotaLexusForum.com is an unofficial community for car enthusiasts. ToyotaLexusForum.com is not affiliated with Toyota Motor Corporation in any way.
Toyota Motor Corporation does not sponsor, support, or endorse ToyotaLexusForum.com in any way.
Copyright/trademark/sales mark infringements are not intended or implied.