Re: '00 GJC uneven break wear
 

Oops, wrong side. Here is the other one:

http://i10.tinypic.com/30cown5.jpg


DorkyGrin wrote:
> Thanks for the reply Doug. Here is a picture of the other side:
> http://i1.tinypic.com/2mcj2uw.jpg
>
> Seems like I didn't replace the rotor when I put new pads on it a year
> ago. I can't remember. I know I did the fronts and put on new rotors
> with new pads. Maybe I should have put new rotors on the rear
> too...they didn't cost much. I think the fronts were $50 each.
>
> Incidently, it's my wife's truck and she hates all the brake dust.
> Would ceramic pads eliminate the brake dust?
>
> Anyway, I'll tear down one side and take some pictures and post them.
> Thanks for the advice.
>
> DG
>
>
> DougW wrote:
> > DorkyGrin wrote:
> > > I've got a GJC Laredo 4.7 and the rear brakes are wearing unevenly. In
> > > fact the outer pads look like they only contact about half the surface
> > > of the rotor. The other half of the surface is rusty and somewhat
> > > corroded. Both rear rotors look the same. It's hard for me to tell if
> > > there is a braking 'efficiency' problem as I don't drive the Jeep
> > > regularly. It feels OK when I drive it but I suppose it could be
> > > better.
> > >
> > > Here is a picture of the right rear:
> > > http://i16.tinypic.com/43wrsrl.jpg
> >
> > Hmm... Odd pattern, the one cut line almost looks like a rock
> > has been caught by the pad or the pad material has gone. Most pads
> > are glued nowdays but a rivet could leave that mark. I'd take
> > the caliper off and have a closer look at the pad face.
> >
> > Either way that disc is going to have to be milled or replaced.
> > A new pad won't seat on a surface like that. These days new hats
> > are almost as easy to do as having the originals milled. That and
> > depending on how deep that is you might not have enough thickness
> > left. (do both sides at the same time)
> >
> > > I replaced the pads about a year ago. They still look newish, like the
> > > rear brakes are hardly used at all.
> >
> > Rear brakes are only a minor part of braking. The fronts do most
> > of the work. When you take it apart check the piston to make sure
> > you didn't bend it when pushing it back in. I always use the old
> > pad and a big C clamp to press the piston back in.
> >
> > > I can't remember if the Jeep has slide pins, if it does I would have
> > > cleaned and greased them .
> >
> > They have slide pins. But usually if a caliper sticks it just
> > wears out one pad real badly.
> >
> > > Any ideas on how to troubleshoot this issue?
> >
> > Take the caliper off and look (post some pics) and the folks here
> > might be able to give you a better idea.
> >
> > > Is there some adjustment that must be made on the rear brakes when
> > > replacing pads?
> >
> > Only for the internal parking brake shoes.
> >
> > --
> > -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com
> > HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> > Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
> > Banks Header - and BEER, in the fridge!

Re: '00 GJC uneven break wear
 

Oops, wrong side. Here is the other one:

http://i10.tinypic.com/30cown5.jpg


DorkyGrin wrote:
> Thanks for the reply Doug. Here is a picture of the other side:
> http://i1.tinypic.com/2mcj2uw.jpg
>
> Seems like I didn't replace the rotor when I put new pads on it a year
> ago. I can't remember. I know I did the fronts and put on new rotors
> with new pads. Maybe I should have put new rotors on the rear
> too...they didn't cost much. I think the fronts were $50 each.
>
> Incidently, it's my wife's truck and she hates all the brake dust.
> Would ceramic pads eliminate the brake dust?
>
> Anyway, I'll tear down one side and take some pictures and post them.
> Thanks for the advice.
>
> DG
>
>
> DougW wrote:
> > DorkyGrin wrote:
> > > I've got a GJC Laredo 4.7 and the rear brakes are wearing unevenly. In
> > > fact the outer pads look like they only contact about half the surface
> > > of the rotor. The other half of the surface is rusty and somewhat
> > > corroded. Both rear rotors look the same. It's hard for me to tell if
> > > there is a braking 'efficiency' problem as I don't drive the Jeep
> > > regularly. It feels OK when I drive it but I suppose it could be
> > > better.
> > >
> > > Here is a picture of the right rear:
> > > http://i16.tinypic.com/43wrsrl.jpg
> >
> > Hmm... Odd pattern, the one cut line almost looks like a rock
> > has been caught by the pad or the pad material has gone. Most pads
> > are glued nowdays but a rivet could leave that mark. I'd take
> > the caliper off and have a closer look at the pad face.
> >
> > Either way that disc is going to have to be milled or replaced.
> > A new pad won't seat on a surface like that. These days new hats
> > are almost as easy to do as having the originals milled. That and
> > depending on how deep that is you might not have enough thickness
> > left. (do both sides at the same time)
> >
> > > I replaced the pads about a year ago. They still look newish, like the
> > > rear brakes are hardly used at all.
> >
> > Rear brakes are only a minor part of braking. The fronts do most
> > of the work. When you take it apart check the piston to make sure
> > you didn't bend it when pushing it back in. I always use the old
> > pad and a big C clamp to press the piston back in.
> >
> > > I can't remember if the Jeep has slide pins, if it does I would have
> > > cleaned and greased them .
> >
> > They have slide pins. But usually if a caliper sticks it just
> > wears out one pad real badly.
> >
> > > Any ideas on how to troubleshoot this issue?
> >
> > Take the caliper off and look (post some pics) and the folks here
> > might be able to give you a better idea.
> >
> > > Is there some adjustment that must be made on the rear brakes when
> > > replacing pads?
> >
> > Only for the internal parking brake shoes.
> >
> > --
> > -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com
> > HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> > Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
> > Banks Header - and BEER, in the fridge!

Re: '00 GJC uneven break wear
 

Oops, wrong side. Here is the other one:

http://i10.tinypic.com/30cown5.jpg


DorkyGrin wrote:
> Thanks for the reply Doug. Here is a picture of the other side:
> http://i1.tinypic.com/2mcj2uw.jpg
>
> Seems like I didn't replace the rotor when I put new pads on it a year
> ago. I can't remember. I know I did the fronts and put on new rotors
> with new pads. Maybe I should have put new rotors on the rear
> too...they didn't cost much. I think the fronts were $50 each.
>
> Incidently, it's my wife's truck and she hates all the brake dust.
> Would ceramic pads eliminate the brake dust?
>
> Anyway, I'll tear down one side and take some pictures and post them.
> Thanks for the advice.
>
> DG
>
>
> DougW wrote:
> > DorkyGrin wrote:
> > > I've got a GJC Laredo 4.7 and the rear brakes are wearing unevenly. In
> > > fact the outer pads look like they only contact about half the surface
> > > of the rotor. The other half of the surface is rusty and somewhat
> > > corroded. Both rear rotors look the same. It's hard for me to tell if
> > > there is a braking 'efficiency' problem as I don't drive the Jeep
> > > regularly. It feels OK when I drive it but I suppose it could be
> > > better.
> > >
> > > Here is a picture of the right rear:
> > > http://i16.tinypic.com/43wrsrl.jpg
> >
> > Hmm... Odd pattern, the one cut line almost looks like a rock
> > has been caught by the pad or the pad material has gone. Most pads
> > are glued nowdays but a rivet could leave that mark. I'd take
> > the caliper off and have a closer look at the pad face.
> >
> > Either way that disc is going to have to be milled or replaced.
> > A new pad won't seat on a surface like that. These days new hats
> > are almost as easy to do as having the originals milled. That and
> > depending on how deep that is you might not have enough thickness
> > left. (do both sides at the same time)
> >
> > > I replaced the pads about a year ago. They still look newish, like the
> > > rear brakes are hardly used at all.
> >
> > Rear brakes are only a minor part of braking. The fronts do most
> > of the work. When you take it apart check the piston to make sure
> > you didn't bend it when pushing it back in. I always use the old
> > pad and a big C clamp to press the piston back in.
> >
> > > I can't remember if the Jeep has slide pins, if it does I would have
> > > cleaned and greased them .
> >
> > They have slide pins. But usually if a caliper sticks it just
> > wears out one pad real badly.
> >
> > > Any ideas on how to troubleshoot this issue?
> >
> > Take the caliper off and look (post some pics) and the folks here
> > might be able to give you a better idea.
> >
> > > Is there some adjustment that must be made on the rear brakes when
> > > replacing pads?
> >
> > Only for the internal parking brake shoes.
> >
> > --
> > -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com
> > HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> > Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
> > Banks Header - and BEER, in the fridge!

Re: '00 GJC uneven break wear
 

The wear pattern (clear area) should extend from the rust rim at the edge to
the rim at the hub while yours only goes about half way down.

http://i1.tinypic.com/2mcj2uw.jpg
http://i10.tinypic.com/30cown5.jpg

From the extent of the wear (ridges) and the deep gouges in the rotor I'm
thinking that the rear pads are worn out or have already failed.

How many miles on your '00?

The only way to tell for sure is to actually pull off the wheels and examine
the pads.

DC does not recommend ceramic brakes for the WJ series. I have Wagner
ThermoQuiet pads and they seem to generate very little of the black brake
dust


"DorkyGrin" <DorkyGrin@yahoo.com> wrote in message
news:1167866552.350740.186960@s34g2000cwa.googlegr oups.com...
> Thanks for the reply Doug. Here is a picture of the other side:
> http://i1.tinypic.com/2mcj2uw.jpg
>
> Seems like I didn't replace the rotor when I put new pads on it a year
> ago. I can't remember. I know I did the fronts and put on new rotors
> with new pads. Maybe I should have put new rotors on the rear
> too...they didn't cost much. I think the fronts were $50 each.
>
> Incidently, it's my wife's truck and she hates all the brake dust.
> Would ceramic pads eliminate the brake dust?
>
> Anyway, I'll tear down one side and take some pictures and post them.
> Thanks for the advice.
>
> DG
>
>
> DougW wrote:
>> DorkyGrin wrote:
>> > I've got a GJC Laredo 4.7 and the rear brakes are wearing unevenly. In
>> > fact the outer pads look like they only contact about half the surface
>> > of the rotor. The other half of the surface is rusty and somewhat
>> > corroded. Both rear rotors look the same. It's hard for me to tell if
>> > there is a braking 'efficiency' problem as I don't drive the Jeep
>> > regularly. It feels OK when I drive it but I suppose it could be
>> > better.
>> >
>> > Here is a picture of the right rear:
>> > http://i16.tinypic.com/43wrsrl.jpg
>>
>> Hmm... Odd pattern, the one cut line almost looks like a rock
>> has been caught by the pad or the pad material has gone. Most pads
>> are glued nowdays but a rivet could leave that mark. I'd take
>> the caliper off and have a closer look at the pad face.
>>
>> Either way that disc is going to have to be milled or replaced.
>> A new pad won't seat on a surface like that. These days new hats
>> are almost as easy to do as having the originals milled. That and
>> depending on how deep that is you might not have enough thickness
>> left. (do both sides at the same time)
>>
>> > I replaced the pads about a year ago. They still look newish, like the
>> > rear brakes are hardly used at all.
>>
>> Rear brakes are only a minor part of braking. The fronts do most
>> of the work. When you take it apart check the piston to make sure
>> you didn't bend it when pushing it back in. I always use the old
>> pad and a big C clamp to press the piston back in.
>>
>> > I can't remember if the Jeep has slide pins, if it does I would have
>> > cleaned and greased them .
>>
>> They have slide pins. But usually if a caliper sticks it just
>> wears out one pad real badly.
>>
>> > Any ideas on how to troubleshoot this issue?
>>
>> Take the caliper off and look (post some pics) and the folks here
>> might be able to give you a better idea.
>>
>> > Is there some adjustment that must be made on the rear brakes when
>> > replacing pads?
>>
>> Only for the internal parking brake shoes.
>>
>> --
>> -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com
>> HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
>> Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
>> Banks Header - and BEER, in the fridge!
>

Re: '00 GJC uneven break wear
 

The wear pattern (clear area) should extend from the rust rim at the edge to
the rim at the hub while yours only goes about half way down.

http://i1.tinypic.com/2mcj2uw.jpg
http://i10.tinypic.com/30cown5.jpg

From the extent of the wear (ridges) and the deep gouges in the rotor I'm
thinking that the rear pads are worn out or have already failed.

How many miles on your '00?

The only way to tell for sure is to actually pull off the wheels and examine
the pads.

DC does not recommend ceramic brakes for the WJ series. I have Wagner
ThermoQuiet pads and they seem to generate very little of the black brake
dust


"DorkyGrin" <DorkyGrin@yahoo.com> wrote in message
news:1167866552.350740.186960@s34g2000cwa.googlegr oups.com...
> Thanks for the reply Doug. Here is a picture of the other side:
> http://i1.tinypic.com/2mcj2uw.jpg
>
> Seems like I didn't replace the rotor when I put new pads on it a year
> ago. I can't remember. I know I did the fronts and put on new rotors
> with new pads. Maybe I should have put new rotors on the rear
> too...they didn't cost much. I think the fronts were $50 each.
>
> Incidently, it's my wife's truck and she hates all the brake dust.
> Would ceramic pads eliminate the brake dust?
>
> Anyway, I'll tear down one side and take some pictures and post them.
> Thanks for the advice.
>
> DG
>
>
> DougW wrote:
>> DorkyGrin wrote:
>> > I've got a GJC Laredo 4.7 and the rear brakes are wearing unevenly. In
>> > fact the outer pads look like they only contact about half the surface
>> > of the rotor. The other half of the surface is rusty and somewhat
>> > corroded. Both rear rotors look the same. It's hard for me to tell if
>> > there is a braking 'efficiency' problem as I don't drive the Jeep
>> > regularly. It feels OK when I drive it but I suppose it could be
>> > better.
>> >
>> > Here is a picture of the right rear:
>> > http://i16.tinypic.com/43wrsrl.jpg
>>
>> Hmm... Odd pattern, the one cut line almost looks like a rock
>> has been caught by the pad or the pad material has gone. Most pads
>> are glued nowdays but a rivet could leave that mark. I'd take
>> the caliper off and have a closer look at the pad face.
>>
>> Either way that disc is going to have to be milled or replaced.
>> A new pad won't seat on a surface like that. These days new hats
>> are almost as easy to do as having the originals milled. That and
>> depending on how deep that is you might not have enough thickness
>> left. (do both sides at the same time)
>>
>> > I replaced the pads about a year ago. They still look newish, like the
>> > rear brakes are hardly used at all.
>>
>> Rear brakes are only a minor part of braking. The fronts do most
>> of the work. When you take it apart check the piston to make sure
>> you didn't bend it when pushing it back in. I always use the old
>> pad and a big C clamp to press the piston back in.
>>
>> > I can't remember if the Jeep has slide pins, if it does I would have
>> > cleaned and greased them .
>>
>> They have slide pins. But usually if a caliper sticks it just
>> wears out one pad real badly.
>>
>> > Any ideas on how to troubleshoot this issue?
>>
>> Take the caliper off and look (post some pics) and the folks here
>> might be able to give you a better idea.
>>
>> > Is there some adjustment that must be made on the rear brakes when
>> > replacing pads?
>>
>> Only for the internal parking brake shoes.
>>
>> --
>> -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com
>> HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
>> Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
>> Banks Header - and BEER, in the fridge!
>

Re: '00 GJC uneven break wear
 

The wear pattern (clear area) should extend from the rust rim at the edge to
the rim at the hub while yours only goes about half way down.

http://i1.tinypic.com/2mcj2uw.jpg
http://i10.tinypic.com/30cown5.jpg

From the extent of the wear (ridges) and the deep gouges in the rotor I'm
thinking that the rear pads are worn out or have already failed.

How many miles on your '00?

The only way to tell for sure is to actually pull off the wheels and examine
the pads.

DC does not recommend ceramic brakes for the WJ series. I have Wagner
ThermoQuiet pads and they seem to generate very little of the black brake
dust


"DorkyGrin" <DorkyGrin@yahoo.com> wrote in message
news:1167866552.350740.186960@s34g2000cwa.googlegr oups.com...
> Thanks for the reply Doug. Here is a picture of the other side:
> http://i1.tinypic.com/2mcj2uw.jpg
>
> Seems like I didn't replace the rotor when I put new pads on it a year
> ago. I can't remember. I know I did the fronts and put on new rotors
> with new pads. Maybe I should have put new rotors on the rear
> too...they didn't cost much. I think the fronts were $50 each.
>
> Incidently, it's my wife's truck and she hates all the brake dust.
> Would ceramic pads eliminate the brake dust?
>
> Anyway, I'll tear down one side and take some pictures and post them.
> Thanks for the advice.
>
> DG
>
>
> DougW wrote:
>> DorkyGrin wrote:
>> > I've got a GJC Laredo 4.7 and the rear brakes are wearing unevenly. In
>> > fact the outer pads look like they only contact about half the surface
>> > of the rotor. The other half of the surface is rusty and somewhat
>> > corroded. Both rear rotors look the same. It's hard for me to tell if
>> > there is a braking 'efficiency' problem as I don't drive the Jeep
>> > regularly. It feels OK when I drive it but I suppose it could be
>> > better.
>> >
>> > Here is a picture of the right rear:
>> > http://i16.tinypic.com/43wrsrl.jpg
>>
>> Hmm... Odd pattern, the one cut line almost looks like a rock
>> has been caught by the pad or the pad material has gone. Most pads
>> are glued nowdays but a rivet could leave that mark. I'd take
>> the caliper off and have a closer look at the pad face.
>>
>> Either way that disc is going to have to be milled or replaced.
>> A new pad won't seat on a surface like that. These days new hats
>> are almost as easy to do as having the originals milled. That and
>> depending on how deep that is you might not have enough thickness
>> left. (do both sides at the same time)
>>
>> > I replaced the pads about a year ago. They still look newish, like the
>> > rear brakes are hardly used at all.
>>
>> Rear brakes are only a minor part of braking. The fronts do most
>> of the work. When you take it apart check the piston to make sure
>> you didn't bend it when pushing it back in. I always use the old
>> pad and a big C clamp to press the piston back in.
>>
>> > I can't remember if the Jeep has slide pins, if it does I would have
>> > cleaned and greased them .
>>
>> They have slide pins. But usually if a caliper sticks it just
>> wears out one pad real badly.
>>
>> > Any ideas on how to troubleshoot this issue?
>>
>> Take the caliper off and look (post some pics) and the folks here
>> might be able to give you a better idea.
>>
>> > Is there some adjustment that must be made on the rear brakes when
>> > replacing pads?
>>
>> Only for the internal parking brake shoes.
>>
>> --
>> -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com
>> HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
>> Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
>> Banks Header - and BEER, in the fridge!
>

Re: '00 GJC uneven break wear
 

DorkyGrin wrote:
> Oops, wrong side. Here is the other one:
>
> http://i10.tinypic.com/30cown5.jpg

hmm.

I dunno. Were the discs like that when you put
new pads on? Can't tell from the pics if there
is something wrong with the setup. Generally there
is only one way to put the caliper back on.

At this point I'd be looking at new pads and hats
for both sides.

--
DougW

Re: '00 GJC uneven break wear
 

DorkyGrin wrote:
> Oops, wrong side. Here is the other one:
>
> http://i10.tinypic.com/30cown5.jpg

hmm.

I dunno. Were the discs like that when you put
new pads on? Can't tell from the pics if there
is something wrong with the setup. Generally there
is only one way to put the caliper back on.

At this point I'd be looking at new pads and hats
for both sides.

--
DougW

Re: '00 GJC uneven break wear
 

DorkyGrin wrote:
> Oops, wrong side. Here is the other one:
>
> http://i10.tinypic.com/30cown5.jpg

hmm.

I dunno. Were the discs like that when you put
new pads on? Can't tell from the pics if there
is something wrong with the setup. Generally there
is only one way to put the caliper back on.

At this point I'd be looking at new pads and hats
for both sides.

--
DougW

Re: '00 GJC uneven break wear
 

If there is uneven wear from inside to outside on any rotor, your slide
pins are not working properly. Clean, grease, replace as required. If
you live in the rust belt, just replace the pins. BTDT

Some vehicles have parking brake integrated with the piston, you have to
screw the piston onto the parking brake actuator when you change pads. I
DON'T think this applies to yours but I only have Jeep parts lists up
to 1996. These older ones have the drum brake inside the rear caiper.

DorkyGrin wrote:
> I've got a GJC Laredo 4.7 and the rear brakes are wearing unevenly. In
> fact the outer pads look like they only contact about half the surface
> of the rotor. The other half of the surface is rusty and somewhat
> corroded. Both rear rotors look the same. It's hard for me to tell if
> there is a braking 'efficiency' problem as I don't drive the Jeep
> regularly. It feels OK when I drive it but I suppose it could be
> better.
>
> Here is a picture of the right rear: http://i16.tinypic.com/43wrsrl.jpg
>
> I replaced the pads about a year ago. They still look newish, like the
> rear brakes are hardly used at all.
>
> I can't remember if the Jeep has slide pins, if it does I would have
> cleaned and greased them .
>
> Any ideas on how to troubleshoot this issue?
>
> Is there some adjustment that must be made on the rear brakes when
> replacing pads?
>
> Thanks!
>