Rotors warping
06-02-2004, 07:47 AM
#11
Guest
Posts: n/a
Re: Rotors warping
SB did pass the time by typing:
> I had thought someone on here said that DC had gone to a new type of rotor
> that wouldn't warp as easily. Thought they had said it was after 1999 or
> something...
They did and you may be fine if this is the first turning. Rotors don't
warp "just because", there has to be a contributing factor. #1 on the list is improper torque on the lugs. All lugs should be
torque the same and within
spec for your vehicle.
Close second is heat-soak (heavy use followed by an extended period of
sitting with the brakes on). That keeps the pads on the rotor and that one
spot will not cool down as well as the rest. (yea, it isn't avoidable to
some extent)
The OEM rotors on my ZJ lasted about two years after the first turning.
When they warped again I took them to Midas (warranty) for replacement but
they convinced me (against my own better judgement) that the rotors could
be turned again. Told them they would warp and they did. They also wouldn't
credit against new rotors despite telling me they would. They lied and they
were incompetent. So I just replaced the rotors myself.
Sad rilly, the local Midas owner aparently sold out to a bunch of idiots.
(long story, got to go to work.) ^_^
--
-- DougW -- 93 ZJ 4.0 http://members.***.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
Banks Header - and BEER, in the fridge!
> I had thought someone on here said that DC had gone to a new type of rotor
> that wouldn't warp as easily. Thought they had said it was after 1999 or
> something...
They did and you may be fine if this is the first turning. Rotors don't
warp "just because", there has to be a contributing factor. #1 on the list is improper torque on the lugs. All lugs should be
torque the same and within
spec for your vehicle.
Close second is heat-soak (heavy use followed by an extended period of
sitting with the brakes on). That keeps the pads on the rotor and that one
spot will not cool down as well as the rest. (yea, it isn't avoidable to
some extent)
The OEM rotors on my ZJ lasted about two years after the first turning.
When they warped again I took them to Midas (warranty) for replacement but
they convinced me (against my own better judgement) that the rotors could
be turned again. Told them they would warp and they did. They also wouldn't
credit against new rotors despite telling me they would. They lied and they
were incompetent. So I just replaced the rotors myself.
Sad rilly, the local Midas owner aparently sold out to a bunch of idiots.
(long story, got to go to work.) ^_^
--
-- DougW -- 93 ZJ 4.0 http://members.***.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
Banks Header - and BEER, in the fridge!
06-02-2004, 07:47 AM
#12
Guest
Posts: n/a
Re: Rotors warping
SB did pass the time by typing:
> I had thought someone on here said that DC had gone to a new type of rotor
> that wouldn't warp as easily. Thought they had said it was after 1999 or
> something...
They did and you may be fine if this is the first turning. Rotors don't
warp "just because", there has to be a contributing factor. #1 on the list is improper torque on the lugs. All lugs should be
torque the same and within
spec for your vehicle.
Close second is heat-soak (heavy use followed by an extended period of
sitting with the brakes on). That keeps the pads on the rotor and that one
spot will not cool down as well as the rest. (yea, it isn't avoidable to
some extent)
The OEM rotors on my ZJ lasted about two years after the first turning.
When they warped again I took them to Midas (warranty) for replacement but
they convinced me (against my own better judgement) that the rotors could
be turned again. Told them they would warp and they did. They also wouldn't
credit against new rotors despite telling me they would. They lied and they
were incompetent. So I just replaced the rotors myself.
Sad rilly, the local Midas owner aparently sold out to a bunch of idiots.
(long story, got to go to work.) ^_^
--
-- DougW -- 93 ZJ 4.0 http://members.***.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
Banks Header - and BEER, in the fridge!
> I had thought someone on here said that DC had gone to a new type of rotor
> that wouldn't warp as easily. Thought they had said it was after 1999 or
> something...
They did and you may be fine if this is the first turning. Rotors don't
warp "just because", there has to be a contributing factor. #1 on the list is improper torque on the lugs. All lugs should be
torque the same and within
spec for your vehicle.
Close second is heat-soak (heavy use followed by an extended period of
sitting with the brakes on). That keeps the pads on the rotor and that one
spot will not cool down as well as the rest. (yea, it isn't avoidable to
some extent)
The OEM rotors on my ZJ lasted about two years after the first turning.
When they warped again I took them to Midas (warranty) for replacement but
they convinced me (against my own better judgement) that the rotors could
be turned again. Told them they would warp and they did. They also wouldn't
credit against new rotors despite telling me they would. They lied and they
were incompetent. So I just replaced the rotors myself.
Sad rilly, the local Midas owner aparently sold out to a bunch of idiots.
(long story, got to go to work.) ^_^
--
-- DougW -- 93 ZJ 4.0 http://members.***.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
Banks Header - and BEER, in the fridge!
06-02-2004, 07:47 AM
#13
Guest
Posts: n/a
Re: Rotors warping
SB did pass the time by typing:
> I had thought someone on here said that DC had gone to a new type of rotor
> that wouldn't warp as easily. Thought they had said it was after 1999 or
> something...
They did and you may be fine if this is the first turning. Rotors don't
warp "just because", there has to be a contributing factor. #1 on the list is improper torque on the lugs. All lugs should be
torque the same and within
spec for your vehicle.
Close second is heat-soak (heavy use followed by an extended period of
sitting with the brakes on). That keeps the pads on the rotor and that one
spot will not cool down as well as the rest. (yea, it isn't avoidable to
some extent)
The OEM rotors on my ZJ lasted about two years after the first turning.
When they warped again I took them to Midas (warranty) for replacement but
they convinced me (against my own better judgement) that the rotors could
be turned again. Told them they would warp and they did. They also wouldn't
credit against new rotors despite telling me they would. They lied and they
were incompetent. So I just replaced the rotors myself.
Sad rilly, the local Midas owner aparently sold out to a bunch of idiots.
(long story, got to go to work.) ^_^
--
-- DougW -- 93 ZJ 4.0 http://members.***.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
Banks Header - and BEER, in the fridge!
> I had thought someone on here said that DC had gone to a new type of rotor
> that wouldn't warp as easily. Thought they had said it was after 1999 or
> something...
They did and you may be fine if this is the first turning. Rotors don't
warp "just because", there has to be a contributing factor. #1 on the list is improper torque on the lugs. All lugs should be
torque the same and within
spec for your vehicle.
Close second is heat-soak (heavy use followed by an extended period of
sitting with the brakes on). That keeps the pads on the rotor and that one
spot will not cool down as well as the rest. (yea, it isn't avoidable to
some extent)
The OEM rotors on my ZJ lasted about two years after the first turning.
When they warped again I took them to Midas (warranty) for replacement but
they convinced me (against my own better judgement) that the rotors could
be turned again. Told them they would warp and they did. They also wouldn't
credit against new rotors despite telling me they would. They lied and they
were incompetent. So I just replaced the rotors myself.
Sad rilly, the local Midas owner aparently sold out to a bunch of idiots.
(long story, got to go to work.) ^_^
--
-- DougW -- 93 ZJ 4.0 http://members.***.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
Banks Header - and BEER, in the fridge!
06-02-2004, 09:21 AM
#14
Guest
Posts: n/a
Re: Rotors warping
SB wrote:
> I had thought someone on here said that DC had gone to a new type of rotor
> that wouldn't warp as easily. Thought they had said it was after 1999 or
> something...
WJ's rotors and calipers changed 2002 at least in US market. For '99 to
mid '02 WJs have n:th replacement TSB:
http://www.wjjeeps.com/tsb_list.htm#0500302b
For 30K and warped rotors is a bit too early, grounded rotors (if this
means turning, does not help on the long run) is trowing money away. The
rotor is already heat damaged, and I would meet at halfway and pay half
of new revised set (TSB).
I have 0500501a TSB installed rotors and calipers in '01 WJ, product
codes match b TSB list. They did not even last 20K miles, warped again.
Lug nuts torqued and measured with calibrated tool when I changed summer
tires to winter tires and back. Currently DC is trying to figure out
whether they replace rotors anew under product warranty or not. TSB work
was done in California, vehicle is now in Finland. Warranty was
trasferred to European warranty upon move.
If this does not turn out to be warranty work, I'll go for Stillen rotors.
Marko
> I had thought someone on here said that DC had gone to a new type of rotor
> that wouldn't warp as easily. Thought they had said it was after 1999 or
> something...
WJ's rotors and calipers changed 2002 at least in US market. For '99 to
mid '02 WJs have n:th replacement TSB:
http://www.wjjeeps.com/tsb_list.htm#0500302b
For 30K and warped rotors is a bit too early, grounded rotors (if this
means turning, does not help on the long run) is trowing money away. The
rotor is already heat damaged, and I would meet at halfway and pay half
of new revised set (TSB).
I have 0500501a TSB installed rotors and calipers in '01 WJ, product
codes match b TSB list. They did not even last 20K miles, warped again.
Lug nuts torqued and measured with calibrated tool when I changed summer
tires to winter tires and back. Currently DC is trying to figure out
whether they replace rotors anew under product warranty or not. TSB work
was done in California, vehicle is now in Finland. Warranty was
trasferred to European warranty upon move.
If this does not turn out to be warranty work, I'll go for Stillen rotors.
Marko
06-02-2004, 09:21 AM
#15
Guest
Posts: n/a
Re: Rotors warping
SB wrote:
> I had thought someone on here said that DC had gone to a new type of rotor
> that wouldn't warp as easily. Thought they had said it was after 1999 or
> something...
WJ's rotors and calipers changed 2002 at least in US market. For '99 to
mid '02 WJs have n:th replacement TSB:
http://www.wjjeeps.com/tsb_list.htm#0500302b
For 30K and warped rotors is a bit too early, grounded rotors (if this
means turning, does not help on the long run) is trowing money away. The
rotor is already heat damaged, and I would meet at halfway and pay half
of new revised set (TSB).
I have 0500501a TSB installed rotors and calipers in '01 WJ, product
codes match b TSB list. They did not even last 20K miles, warped again.
Lug nuts torqued and measured with calibrated tool when I changed summer
tires to winter tires and back. Currently DC is trying to figure out
whether they replace rotors anew under product warranty or not. TSB work
was done in California, vehicle is now in Finland. Warranty was
trasferred to European warranty upon move.
If this does not turn out to be warranty work, I'll go for Stillen rotors.
Marko
> I had thought someone on here said that DC had gone to a new type of rotor
> that wouldn't warp as easily. Thought they had said it was after 1999 or
> something...
WJ's rotors and calipers changed 2002 at least in US market. For '99 to
mid '02 WJs have n:th replacement TSB:
http://www.wjjeeps.com/tsb_list.htm#0500302b
For 30K and warped rotors is a bit too early, grounded rotors (if this
means turning, does not help on the long run) is trowing money away. The
rotor is already heat damaged, and I would meet at halfway and pay half
of new revised set (TSB).
I have 0500501a TSB installed rotors and calipers in '01 WJ, product
codes match b TSB list. They did not even last 20K miles, warped again.
Lug nuts torqued and measured with calibrated tool when I changed summer
tires to winter tires and back. Currently DC is trying to figure out
whether they replace rotors anew under product warranty or not. TSB work
was done in California, vehicle is now in Finland. Warranty was
trasferred to European warranty upon move.
If this does not turn out to be warranty work, I'll go for Stillen rotors.
Marko
06-02-2004, 09:21 AM
#16
Guest
Posts: n/a
Re: Rotors warping
SB wrote:
> I had thought someone on here said that DC had gone to a new type of rotor
> that wouldn't warp as easily. Thought they had said it was after 1999 or
> something...
WJ's rotors and calipers changed 2002 at least in US market. For '99 to
mid '02 WJs have n:th replacement TSB:
http://www.wjjeeps.com/tsb_list.htm#0500302b
For 30K and warped rotors is a bit too early, grounded rotors (if this
means turning, does not help on the long run) is trowing money away. The
rotor is already heat damaged, and I would meet at halfway and pay half
of new revised set (TSB).
I have 0500501a TSB installed rotors and calipers in '01 WJ, product
codes match b TSB list. They did not even last 20K miles, warped again.
Lug nuts torqued and measured with calibrated tool when I changed summer
tires to winter tires and back. Currently DC is trying to figure out
whether they replace rotors anew under product warranty or not. TSB work
was done in California, vehicle is now in Finland. Warranty was
trasferred to European warranty upon move.
If this does not turn out to be warranty work, I'll go for Stillen rotors.
Marko
> I had thought someone on here said that DC had gone to a new type of rotor
> that wouldn't warp as easily. Thought they had said it was after 1999 or
> something...
WJ's rotors and calipers changed 2002 at least in US market. For '99 to
mid '02 WJs have n:th replacement TSB:
http://www.wjjeeps.com/tsb_list.htm#0500302b
For 30K and warped rotors is a bit too early, grounded rotors (if this
means turning, does not help on the long run) is trowing money away. The
rotor is already heat damaged, and I would meet at halfway and pay half
of new revised set (TSB).
I have 0500501a TSB installed rotors and calipers in '01 WJ, product
codes match b TSB list. They did not even last 20K miles, warped again.
Lug nuts torqued and measured with calibrated tool when I changed summer
tires to winter tires and back. Currently DC is trying to figure out
whether they replace rotors anew under product warranty or not. TSB work
was done in California, vehicle is now in Finland. Warranty was
trasferred to European warranty upon move.
If this does not turn out to be warranty work, I'll go for Stillen rotors.
Marko
06-02-2004, 09:21 AM
#17
Guest
Posts: n/a
Re: Rotors warping
SB wrote:
> I had thought someone on here said that DC had gone to a new type of rotor
> that wouldn't warp as easily. Thought they had said it was after 1999 or
> something...
WJ's rotors and calipers changed 2002 at least in US market. For '99 to
mid '02 WJs have n:th replacement TSB:
http://www.wjjeeps.com/tsb_list.htm#0500302b
For 30K and warped rotors is a bit too early, grounded rotors (if this
means turning, does not help on the long run) is trowing money away. The
rotor is already heat damaged, and I would meet at halfway and pay half
of new revised set (TSB).
I have 0500501a TSB installed rotors and calipers in '01 WJ, product
codes match b TSB list. They did not even last 20K miles, warped again.
Lug nuts torqued and measured with calibrated tool when I changed summer
tires to winter tires and back. Currently DC is trying to figure out
whether they replace rotors anew under product warranty or not. TSB work
was done in California, vehicle is now in Finland. Warranty was
trasferred to European warranty upon move.
If this does not turn out to be warranty work, I'll go for Stillen rotors.
Marko
> I had thought someone on here said that DC had gone to a new type of rotor
> that wouldn't warp as easily. Thought they had said it was after 1999 or
> something...
WJ's rotors and calipers changed 2002 at least in US market. For '99 to
mid '02 WJs have n:th replacement TSB:
http://www.wjjeeps.com/tsb_list.htm#0500302b
For 30K and warped rotors is a bit too early, grounded rotors (if this
means turning, does not help on the long run) is trowing money away. The
rotor is already heat damaged, and I would meet at halfway and pay half
of new revised set (TSB).
I have 0500501a TSB installed rotors and calipers in '01 WJ, product
codes match b TSB list. They did not even last 20K miles, warped again.
Lug nuts torqued and measured with calibrated tool when I changed summer
tires to winter tires and back. Currently DC is trying to figure out
whether they replace rotors anew under product warranty or not. TSB work
was done in California, vehicle is now in Finland. Warranty was
trasferred to European warranty upon move.
If this does not turn out to be warranty work, I'll go for Stillen rotors.
Marko
06-02-2004, 10:10 AM
#18
Guest
Posts: n/a
Re: Rotors warping
You need to find a shop that knows how to properly install tires.
Hint: it isn't using an air impact gun.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Larry Greenwood wrote:
>
> With 30k miles, the brake rotors on 01 GC warped while on a trip. I managed
> to have them grounded and the front pads replaced for $260 at a jeep
> dealership.
>
> According to my owners manual rotors are excluded from warranty after 12k
> miles.
>
> Should I have to eventually replace the rotors in the future, are there some
> good products besides the original equipment?
>
> Larry Greenwood
Hint: it isn't using an air impact gun.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Larry Greenwood wrote:
>
> With 30k miles, the brake rotors on 01 GC warped while on a trip. I managed
> to have them grounded and the front pads replaced for $260 at a jeep
> dealership.
>
> According to my owners manual rotors are excluded from warranty after 12k
> miles.
>
> Should I have to eventually replace the rotors in the future, are there some
> good products besides the original equipment?
>
> Larry Greenwood
06-02-2004, 10:10 AM
#19
Guest
Posts: n/a
Re: Rotors warping
You need to find a shop that knows how to properly install tires.
Hint: it isn't using an air impact gun.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Larry Greenwood wrote:
>
> With 30k miles, the brake rotors on 01 GC warped while on a trip. I managed
> to have them grounded and the front pads replaced for $260 at a jeep
> dealership.
>
> According to my owners manual rotors are excluded from warranty after 12k
> miles.
>
> Should I have to eventually replace the rotors in the future, are there some
> good products besides the original equipment?
>
> Larry Greenwood
Hint: it isn't using an air impact gun.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Larry Greenwood wrote:
>
> With 30k miles, the brake rotors on 01 GC warped while on a trip. I managed
> to have them grounded and the front pads replaced for $260 at a jeep
> dealership.
>
> According to my owners manual rotors are excluded from warranty after 12k
> miles.
>
> Should I have to eventually replace the rotors in the future, are there some
> good products besides the original equipment?
>
> Larry Greenwood
06-02-2004, 10:10 AM
#20
Guest
Posts: n/a
Re: Rotors warping
You need to find a shop that knows how to properly install tires.
Hint: it isn't using an air impact gun.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Larry Greenwood wrote:
>
> With 30k miles, the brake rotors on 01 GC warped while on a trip. I managed
> to have them grounded and the front pads replaced for $260 at a jeep
> dealership.
>
> According to my owners manual rotors are excluded from warranty after 12k
> miles.
>
> Should I have to eventually replace the rotors in the future, are there some
> good products besides the original equipment?
>
> Larry Greenwood
Hint: it isn't using an air impact gun.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Larry Greenwood wrote:
>
> With 30k miles, the brake rotors on 01 GC warped while on a trip. I managed
> to have them grounded and the front pads replaced for $260 at a jeep
> dealership.
>
> According to my owners manual rotors are excluded from warranty after 12k
> miles.
>
> Should I have to eventually replace the rotors in the future, are there some
> good products besides the original equipment?
>
> Larry Greenwood