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  #1 (permalink)  
Old 29 Apr 2006, 10:33 am
Cherokee
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Default Warped Rotors(again)

Anyone have any ideas how I can remedy this problem? I have a 2001
Accord LX V6 that has given me brake problems since it had 40,000 miles
on it. I currently have 80,000 and every 15K or so the car starts
pulsating when braking. Each time I've brought it in to the local shop
I use they tell me the rotors are warped. I've put new ones on the
front and back since the originals were machined twice. I also had to
get new pads at 40K and nearly all my driving is highway.

My wife has a 2002 Civic and I had a 93 Civic with no problems. Am I
doomed to suffer brake issues until I get rid of this car? I typically
get 60 to 70K out of a car before I need new pads and machined rotors,
but this Accord is an exception.
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  #2 (permalink)  
Old 29 Apr 2006, 11:06 am
jim beam
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Default Re: Warped Rotors(again)

Cherokee wrote:
> Anyone have any ideas how I can remedy this problem? I have a 2001
> Accord LX V6 that has given me brake problems since it had 40,000 miles
> on it. I currently have 80,000 and every 15K or so the car starts
> pulsating when braking. Each time I've brought it in to the local shop
> I use they tell me the rotors are warped. I've put new ones on the
> front and back since the originals were machined twice. I also had to
> get new pads at 40K and nearly all my driving is highway.
>
> My wife has a 2002 Civic and I had a 93 Civic with no problems. Am I
> doomed to suffer brake issues until I get rid of this car? I typically
> get 60 to 70K out of a car before I need new pads and machined rotors,
> but this Accord is an exception.


get new rotors and make sure they're fitted correctly - no rust under
the hub, then, and this is the most important part, /make sure the lug
nuts are torqued correctly/. hondas have lightweight hubs. incorrect
torque procedure leads to local distortion and the problems you
describe. make sure the lug nuts are tightened by a hand torque wrench,
NOT air tool with a 1324, 1324 or 13524, 13524 two [or more] stage
process, the first one with the wheel off the ground.

after that, you'll never experience this problem again. i've taken
hondas to the shop with good brakes and driven them home with badly
pulsing brakes because of incorrect process. re-torque the wheels on
arrival at home and the problem disappears again. you probably won't be
able to do this because if used in this condition too long, the rotors
wear unevenly.

you can change the rotors yourself if you want. it's simple to do and
the rotors aren't very expensive.
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  #3 (permalink)  
Old 29 Apr 2006, 03:40 pm
Grey-hound
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Default Re: Warped Rotors(again)

don't drive through puddles with hot brakes.

"Cherokee" <cherokeecruiser2002@yahoo.com> wrote in message
news:MGL4g.18$HL1.3@fe05.lga...
> Anyone have any ideas how I can remedy this problem? I have a 2001 Accord
> LX V6 that has given me brake problems since it had 40,000 miles on it. I
> currently have 80,000 and every 15K or so the car starts pulsating when
> braking. Each time I've brought it in to the local shop I use they tell
> me the rotors are warped. I've put new ones on the front and back since
> the originals were machined twice. I also had to get new pads at 40K and
> nearly all my driving is highway.
>
> My wife has a 2002 Civic and I had a 93 Civic with no problems. Am I
> doomed to suffer brake issues until I get rid of this car? I typically
> get 60 to 70K out of a car before I need new pads and machined rotors, but
> this Accord is an exception.



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  #4 (permalink)  
Old 29 Apr 2006, 07:35 pm
Michael Pardee
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Posts: n/a
Default Re: Warped Rotors(again)

"jim beam" <nospam@example.net> wrote in message
news:XNCdndKFN4qaEs7ZnZ2dnUVZ_umdnZ2d@speakeasy.ne t...
> Cherokee wrote:
>> Anyone have any ideas how I can remedy this problem? I have a 2001
>> Accord LX V6 that has given me brake problems since it had 40,000 miles
>> on it. I currently have 80,000 and every 15K or so the car starts
>> pulsating when braking. Each time I've brought it in to the local shop I
>> use they tell me the rotors are warped. I've put new ones on the front
>> and back since the originals were machined twice. I also had to get new
>> pads at 40K and nearly all my driving is highway.
>>
>> My wife has a 2002 Civic and I had a 93 Civic with no problems. Am I
>> doomed to suffer brake issues until I get rid of this car? I typically
>> get 60 to 70K out of a car before I need new pads and machined rotors,
>> but this Accord is an exception.

>
> get new rotors and make sure they're fitted correctly - no rust under the
> hub, then, and this is the most important part, /make sure the lug nuts
> are torqued correctly/. hondas have lightweight hubs. incorrect torque
> procedure leads to local distortion and the problems you describe. make
> sure the lug nuts are tightened by a hand torque wrench, NOT air tool with
> a 1324, 1324 or 13524, 13524 two [or more] stage process, the first one
> with the wheel off the ground.
>
> after that, you'll never experience this problem again. i've taken hondas
> to the shop with good brakes and driven them home with badly pulsing
> brakes because of incorrect process. re-torque the wheels on arrival at
> home and the problem disappears again. you probably won't be able to do
> this because if used in this condition too long, the rotors wear unevenly.
>
> you can change the rotors yourself if you want. it's simple to do and the
> rotors aren't very expensive.


There are a lot of theories about what causes pulsations during braking,
which is normally chalked up to warped disks. I don't know exactly what the
truth is, but when I started using a torque wrench on the lug nuts I stopped
having rotor trouble.

Mike


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  #5 (permalink)  
Old 29 Apr 2006, 09:22 pm
loewent via CarKB.com
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Posts: n/a
Default Re: Warped Rotors(again)

do you use OEM Brake parts or aftermarket? I made the mistake of putting
'lifetime' brakepads on my 98 civic once. Within 3 months, my OEM original
rotors were warped to hell. And I live in winnipeg! not a hill around here
for miles....

anyways, I switched back to OEM pads, and had the rotors machined once. They
lasted for another 6 months, I took the car on a 13000km road trip. The 50km
downhill stretch into Death Valley USA cooked the rotors again. I have since
replaced them...

t

Michael Pardee wrote:
>>> Anyone have any ideas how I can remedy this problem? I have a 2001
>>> Accord LX V6 that has given me brake problems since it had 40,000 miles

>[quoted text clipped - 25 lines]
>> you can change the rotors yourself if you want. it's simple to do and the
>> rotors aren't very expensive.

>
>There are a lot of theories about what causes pulsations during braking,
>which is normally chalked up to warped disks. I don't know exactly what the
>truth is, but when I started using a torque wrench on the lug nuts I stopped
>having rotor trouble.
>
>Mike


--
Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx...-cars/200604/1
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  #6 (permalink)  
Old 29 Apr 2006, 09:50 pm
Eric
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Posts: n/a
Default Re: Warped Rotors(again)

"loewent via CarKB.com" wrote:
>
> do you use OEM Brake parts or aftermarket? I made the mistake of putting
> 'lifetime' brakepads on my 98 civic once. Within 3 months, my OEM
> original rotors were warped to hell. And I live in winnipeg! not a hill
> around here for miles....
>
> anyways, I switched back to OEM pads, and had the rotors machined once.
> They lasted for another 6 months, I took the car on a 13000km road trip.
> The 50km downhill stretch into Death Valley USA cooked the rotors again.
> I have since replaced them...
>


Assuming your lug nuts are properly torqued, there are other problems which
can cause warped rotors. Have you checked the brake calipers to make sure
that they're not hanging up? With the caliper pivoted up away from the
mounting bracket, gently squeeze the piston into the caliper a small amount
and then release it. You should see the piston move back out a small amount
on its own. This is due to the square cut piston seal. This movement, in
reverse, is what's responsible for pulling the piston away from the brake
rotor after braking. If there's corrosion buildup on the pistons, then they
might not move freely and a slight drag could be causing your waters to warp
easily. You will also want to check the caliper's slider pins to make sure
that they are free from corrosion as well.

Eric
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