How may pad sets will a rotor stand?
#1
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Posts: n/a
How may pad sets will a rotor stand?
Has anyone got any experience of the rotors in a stock A4 '98 1.8TQ, and how
many pad sets they are good for?
I'm assuming they've been treated normally.
I guess this is the most convenient way of calculating wear without actually
measuring their thickness.
Thanks,
JP
many pad sets they are good for?
I'm assuming they've been treated normally.
I guess this is the most convenient way of calculating wear without actually
measuring their thickness.
Thanks,
JP
#2
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Posts: n/a
Re: How may pad sets will a rotor stand?
On Sun, 12 Oct 2003 22:02:32 +0200, "JP Roberts" <1234@yahoo.com>
wrote:
>I guess this is the most convenient way of calculating wear without actually
>measuring their thickness.
What's wrong with measuring their thickness?
wrote:
>I guess this is the most convenient way of calculating wear without actually
>measuring their thickness.
What's wrong with measuring their thickness?
#3
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Posts: n/a
Re: How may pad sets will a rotor stand?
Pronto Breakneck wrote:
> On Sun, 12 Oct 2003 22:02:32 +0200, "JP Roberts" <1234@yahoo.com>
> wrote:
>
>>I guess this is the most convenient way of calculating wear without actually
>>measuring their thickness.
>
>
> What's wrong with measuring their thickness?
>
Use a micrometer and measure them. Personally, I just replace them each
time I change the pads. It's not THAT expensive.
C
> On Sun, 12 Oct 2003 22:02:32 +0200, "JP Roberts" <1234@yahoo.com>
> wrote:
>
>>I guess this is the most convenient way of calculating wear without actually
>>measuring their thickness.
>
>
> What's wrong with measuring their thickness?
>
Use a micrometer and measure them. Personally, I just replace them each
time I change the pads. It's not THAT expensive.
C
#4
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Posts: n/a
Re: How may pad sets will a rotor stand?
"JP Roberts" <1234@yahoo.com> wrote in message news:<bmcc0c$e4r$1@news.ya.com>...
> Has anyone got any experience of the rotors in a stock A4 '98 1.8TQ, and how
> many pad sets they are good for?
>
> I'm assuming they've been treated normally.
There's no such thing as 'normal'. Brake usage is *very* dependent on
the individual driver of the car. While I go through a lot more
brakes than most people, as a BMW club driving instructor, I'm known
for being *easy* on my brakes while colleagues doing the same kind of
driving can go through more than a pad set in a single weekend.
Although I drive more aggressively on the street than my wife, her
brake disks crapped out faster than mine because she didn't use them
*hard enough* (Look up the 'sit rust' syndrome we've discussed here
before some time.) Therefore, it's not even completely accurate to
make judgments on driving *style*.
> I guess this is the most convenient way of calculating wear without actually
> measuring their thickness.
If you want convenience, just change them every second pad change
whether they're down to minimum specs or not. As others have pointed
out, it's fairly cheap for the most critical safety system on your
car.
--
C.R. Krieger
(Been there; fixed that)
> Has anyone got any experience of the rotors in a stock A4 '98 1.8TQ, and how
> many pad sets they are good for?
>
> I'm assuming they've been treated normally.
There's no such thing as 'normal'. Brake usage is *very* dependent on
the individual driver of the car. While I go through a lot more
brakes than most people, as a BMW club driving instructor, I'm known
for being *easy* on my brakes while colleagues doing the same kind of
driving can go through more than a pad set in a single weekend.
Although I drive more aggressively on the street than my wife, her
brake disks crapped out faster than mine because she didn't use them
*hard enough* (Look up the 'sit rust' syndrome we've discussed here
before some time.) Therefore, it's not even completely accurate to
make judgments on driving *style*.
> I guess this is the most convenient way of calculating wear without actually
> measuring their thickness.
If you want convenience, just change them every second pad change
whether they're down to minimum specs or not. As others have pointed
out, it's fairly cheap for the most critical safety system on your
car.
--
C.R. Krieger
(Been there; fixed that)
#5
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Posts: n/a
Re: How may pad sets will a rotor stand?
"JP Roberts" <1234@yahoo.com> wrote in message news:<bmcc0c$e4r$1@news.ya.com>...
> Has anyone got any experience of the rotors in a stock A4 '98 1.8TQ, and how
> many pad sets they are good for?
Depends on how they're treated. And what kind of pads are being used.
> I'm assuming they've been treated normally.
Depends on the definition of "normally." "Normal" for brake use is
hardly a fixed quantity.
> I guess this is the most convenient way of calculating wear without actually
> measuring their thickness.
There really is no substitute of using a cheap tool for the task -
this tool is available everywhere (thanks to the Internet,) and is
called a "caliper".
Of course, if you are going to the trouble of replacing the pads, may
as well just replace the rotors too. They are relatively inexpensive,
and the more mass, the better you can stop.
If you can afford to run an Audi, you can afford a caliper. Besides,
I've found that these babies have a hundred and ten different uses,
including stirring paint.
Spider
(Uhh, just kidding on the paint thing.)
> Has anyone got any experience of the rotors in a stock A4 '98 1.8TQ, and how
> many pad sets they are good for?
Depends on how they're treated. And what kind of pads are being used.
> I'm assuming they've been treated normally.
Depends on the definition of "normally." "Normal" for brake use is
hardly a fixed quantity.
> I guess this is the most convenient way of calculating wear without actually
> measuring their thickness.
There really is no substitute of using a cheap tool for the task -
this tool is available everywhere (thanks to the Internet,) and is
called a "caliper".
Of course, if you are going to the trouble of replacing the pads, may
as well just replace the rotors too. They are relatively inexpensive,
and the more mass, the better you can stop.
If you can afford to run an Audi, you can afford a caliper. Besides,
I've found that these babies have a hundred and ten different uses,
including stirring paint.
Spider
(Uhh, just kidding on the paint thing.)
#6
Guest
Posts: n/a
Re: How may pad sets will a rotor stand?
"Spider" <beelzebubba@hotmail.com> wrote in message
news:73da2590.0310130836.16e13f3f@posting.google.c om...
> "JP Roberts" <1234@yahoo.com> wrote in message
news:<bmcc0c$e4r$1@news.ya.com>...
> > Has anyone got any experience of the rotors in a stock A4 '98 1.8TQ, and
how
> > many pad sets they are good for?
>
> Depends on how they're treated. And what kind of pads are being used.
>
> > I'm assuming they've been treated normally.
>
> Depends on the definition of "normally." "Normal" for brake use is
> hardly a fixed quantity.
>
> > I guess this is the most convenient way of calculating wear without
actually
> > measuring their thickness.
>
> There really is no substitute of using a cheap tool for the task -
> this tool is available everywhere (thanks to the Internet,) and is
> called a "caliper".
>
> Of course, if you are going to the trouble of replacing the pads, may
> as well just replace the rotors too. They are relatively inexpensive,
> and the more mass, the better you can stop.
>
> If you can afford to run an Audi, you can afford a caliper. Besides,
> I've found that these babies have a hundred and ten different uses,
> including stirring paint.
>
> Spider
>
>
> (Uhh, just kidding on the paint thing.)
A Micrometer is more acurate than Vernier Caliper's, even so, this American
method of turning down a set of Disc's <rotor's> is stupid and Dangerous.
In the UK a "Caliper" is the part of the braking system that holds the pads
and pushes the piston.
A set of discs will cost around £40.00 thats about $65.00, the time taken in
removing a disc then putting it in a lathe then turning the disc down will
cost much more than this. and then all you have is "thinner" disc's.
Maybe in the 60's when Disc brakes were few and far between, it may have
been cheaper to skim the discs than to buy a new set, this is the 21st
century and all cars <almost> come with disc brakes, so prices are very
cheap.
Good Luck
Ron
#7
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Posts: n/a
Re: How may pad sets will a rotor stand?
On Tue, 14 Oct 2003 14:58:44 +0100, "Ronny" <Ron@ron.com> wrote:
>A Micrometer is more acurate than Vernier Caliper's, even so, this American
>method of turning down a set of Disc's <rotor's> is stupid and Dangerous.
Sez you.
>In the UK a "Caliper" is the part of the braking system that holds the pads
>and pushes the piston.
I'm pretty sure that's a caliper everywhere.
Oh, wait, I'm sorry. Was that the world-famous British wit at work?
My apologies.
>A set of discs will cost around £40.00 thats about $65.00,
I don't know where you're buying your parts from, but a set of rotors
for my 97 A4 costs almost US$200.00
>the time taken in
>removing a disc then putting it in a lathe then turning the disc down will
>cost much more than this.
um, no.
A rotor turning typically costs between $5 and $10 per corner.
>and then all you have is "thinner" disc's.
As long as the rotors are within spec and not warped, this is not an
issue.
>Maybe in the 60's when Disc brakes were few and far between, it may have
>been cheaper to skim the discs than to buy a new set, this is the 21st
>century and all cars <almost> come with disc brakes, so prices are very
>cheap.
You're wrong. Stop talking out of your ***.
>A Micrometer is more acurate than Vernier Caliper's, even so, this American
>method of turning down a set of Disc's <rotor's> is stupid and Dangerous.
Sez you.
>In the UK a "Caliper" is the part of the braking system that holds the pads
>and pushes the piston.
I'm pretty sure that's a caliper everywhere.
Oh, wait, I'm sorry. Was that the world-famous British wit at work?
My apologies.
>A set of discs will cost around £40.00 thats about $65.00,
I don't know where you're buying your parts from, but a set of rotors
for my 97 A4 costs almost US$200.00
>the time taken in
>removing a disc then putting it in a lathe then turning the disc down will
>cost much more than this.
um, no.
A rotor turning typically costs between $5 and $10 per corner.
>and then all you have is "thinner" disc's.
As long as the rotors are within spec and not warped, this is not an
issue.
>Maybe in the 60's when Disc brakes were few and far between, it may have
>been cheaper to skim the discs than to buy a new set, this is the 21st
>century and all cars <almost> come with disc brakes, so prices are very
>cheap.
You're wrong. Stop talking out of your ***.
#8
Guest
Posts: n/a
Re: How may pad sets will a rotor stand?
"Pronto Breakneck" <no_address@example.com> wrote in message
news:5g0oovsf07713pgq62f0e6mktimig1ur5f@4ax.com...
> On Tue, 14 Oct 2003 14:58:44 +0100, "Ronny" <Ron@ron.com> wrote:
> >A Micrometer is more acurate than Vernier Caliper's, even so, this
American
> >method of turning down a set of Disc's <rotor's> is stupid and Dangerous.
>
> Sez you.
>
> >In the UK a "Caliper" is the part of the braking system that holds the
pads
> >and pushes the piston.
>
> I'm pretty sure that's a caliper everywhere.
>
> Oh, wait, I'm sorry. Was that the world-famous British wit at work?
> My apologies.
Hard to say. Even for a Brit - "divided by a common language".
Personally, I suspect "subtlety"
> >A set of discs will cost around £40.00 thats about $65.00,
>
> I don't know where you're buying your parts from, but a set of rotors
> for my 97 A4 costs almost US$200.00
I would guess the UK. Not sure on prices myself (40 quid sounds about right
for a set of solid discs, trade, last time I bought a set).
Perhaps one of us nearer where they're made..?[1]
> >the time taken in
> >removing a disc then putting it in a lathe then turning the disc down
will
> >cost much more than this.
>
> um, no.
>
> A rotor turning typically costs between $5 and $10 per corner.
I suspect that we might have a bit of a difference in labour rates -
assuming a dismount, align, and remount would take someone about an hour
(obviously a lot less if you've already removed the wheel and stripped-out
the pads as part of another job) $20-40 a hour sounds a bit low.
As a guide, a franchised dealer rate over here can easily top $150 an hour.
> >and then all you have is "thinner" disc's.
>
> As long as the rotors are within spec and not warped, this is not an
> issue.
And that they're square[2]. I've once had the misfortune to drive an MGB
with turned-down discs. Never again.
> >Maybe in the 60's when Disc brakes were few and far between, it may have
> >been cheaper to skim the discs than to buy a new set, this is the 21st
> >century and all cars <almost> come with disc brakes, so prices are very
> >cheap.
>
> You're wrong. Stop talking out of your ***.
Erm. Which bit? That cars with disc brakes were rare in the sixties, that
most modern cars come with at least one set of discs, or that most of us are
currently inhabiting the 21st century?[4]
--
Hairy One Kenobi
Disclaimer: the opinions expressed in this opinion do not necessarily
reflect the opinions of the highly-opinionated person expressing the opinion
in the first place. So there!
[1] Yes, that was British wit. Irony is non-ferrous.[3]
[2] That wasn't. "Square" as in "exactly 90* to the axis; you don't have to
be too far out to get uncontrollable judder.
[3] That, too.
[4] Yep, and that. Last one though.
news:5g0oovsf07713pgq62f0e6mktimig1ur5f@4ax.com...
> On Tue, 14 Oct 2003 14:58:44 +0100, "Ronny" <Ron@ron.com> wrote:
> >A Micrometer is more acurate than Vernier Caliper's, even so, this
American
> >method of turning down a set of Disc's <rotor's> is stupid and Dangerous.
>
> Sez you.
>
> >In the UK a "Caliper" is the part of the braking system that holds the
pads
> >and pushes the piston.
>
> I'm pretty sure that's a caliper everywhere.
>
> Oh, wait, I'm sorry. Was that the world-famous British wit at work?
> My apologies.
Hard to say. Even for a Brit - "divided by a common language".
Personally, I suspect "subtlety"
> >A set of discs will cost around £40.00 thats about $65.00,
>
> I don't know where you're buying your parts from, but a set of rotors
> for my 97 A4 costs almost US$200.00
I would guess the UK. Not sure on prices myself (40 quid sounds about right
for a set of solid discs, trade, last time I bought a set).
Perhaps one of us nearer where they're made..?[1]
> >the time taken in
> >removing a disc then putting it in a lathe then turning the disc down
will
> >cost much more than this.
>
> um, no.
>
> A rotor turning typically costs between $5 and $10 per corner.
I suspect that we might have a bit of a difference in labour rates -
assuming a dismount, align, and remount would take someone about an hour
(obviously a lot less if you've already removed the wheel and stripped-out
the pads as part of another job) $20-40 a hour sounds a bit low.
As a guide, a franchised dealer rate over here can easily top $150 an hour.
> >and then all you have is "thinner" disc's.
>
> As long as the rotors are within spec and not warped, this is not an
> issue.
And that they're square[2]. I've once had the misfortune to drive an MGB
with turned-down discs. Never again.
> >Maybe in the 60's when Disc brakes were few and far between, it may have
> >been cheaper to skim the discs than to buy a new set, this is the 21st
> >century and all cars <almost> come with disc brakes, so prices are very
> >cheap.
>
> You're wrong. Stop talking out of your ***.
Erm. Which bit? That cars with disc brakes were rare in the sixties, that
most modern cars come with at least one set of discs, or that most of us are
currently inhabiting the 21st century?[4]
--
Hairy One Kenobi
Disclaimer: the opinions expressed in this opinion do not necessarily
reflect the opinions of the highly-opinionated person expressing the opinion
in the first place. So there!
[1] Yes, that was British wit. Irony is non-ferrous.[3]
[2] That wasn't. "Square" as in "exactly 90* to the axis; you don't have to
be too far out to get uncontrollable judder.
[3] That, too.
[4] Yep, and that. Last one though.
#9
Guest
Posts: n/a
Re: How may pad sets will a rotor stand?
On Tue, 14 Oct 2003 18:05:04 +0100, "Hairy One Kenobi"
<abuse@[127.0.0.1]> wrote:
>> A rotor turning typically costs between $5 and $10 per corner.
>
>I suspect that we might have a bit of a difference in labour rates -
>assuming a dismount, align, and remount would take someone about an hour
Mounting? Alignment? What are you talking about? Those thing have
nothing to do with the comparison we're making: the cost of turning
vs. the cost of replacement.
If I drive down to my local machine shop, hand them four rotors, and
say "turn these", it'll cost less than US$50. Heck, it'll probably be
less than US$30.
Any other costs involved in doing the brake job are not relevant,
because you need to do them regardless of your decision on the
question of resurfacing or replacing.
>> You're wrong. Stop talking out of your ***.
>
>Erm. Which bit?
Everything after "On Tue, 14 Oct 2003 14:58:44 +0100, "Ronny"
<Ron@ron.com> wrote:"
<abuse@[127.0.0.1]> wrote:
>> A rotor turning typically costs between $5 and $10 per corner.
>
>I suspect that we might have a bit of a difference in labour rates -
>assuming a dismount, align, and remount would take someone about an hour
Mounting? Alignment? What are you talking about? Those thing have
nothing to do with the comparison we're making: the cost of turning
vs. the cost of replacement.
If I drive down to my local machine shop, hand them four rotors, and
say "turn these", it'll cost less than US$50. Heck, it'll probably be
less than US$30.
Any other costs involved in doing the brake job are not relevant,
because you need to do them regardless of your decision on the
question of resurfacing or replacing.
>> You're wrong. Stop talking out of your ***.
>
>Erm. Which bit?
Everything after "On Tue, 14 Oct 2003 14:58:44 +0100, "Ronny"
<Ron@ron.com> wrote:"
#10
Guest
Posts: n/a
Re: How may pad sets will a rotor stand?
German rotors don't get turned.
They get replaced.
Ask your friendly dealer to see their brake lathe.
It hasn't been used in a decade.
On Tue, 14 Oct 2003 19:16:23 -0400, Pronto Breakneck
<no_address@example.com> wrote:
>Snipped the self-justification for being financially retentive.<
They get replaced.
Ask your friendly dealer to see their brake lathe.
It hasn't been used in a decade.
On Tue, 14 Oct 2003 19:16:23 -0400, Pronto Breakneck
<no_address@example.com> wrote:
>Snipped the self-justification for being financially retentive.<