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-   -   Brake Rotor and Pad Install (http://www.jeepforum.com/forum/f310/brake-rotor-pad-install-1484469/)

ChrisHager 02-25-2013 02:59 PM

Brake Rotor and Pad Install
 
2 Attachment(s)
This past weekend, I tackled the brakes on my WJ. As usual, I took a bunch of pictures for anyone needing instructions on how to do this. The focus of this install is the front as I changed out the rotors and pads. I took pictures of the rear install as well though it only involves switching out the pads. I didn't get as many pictures of the rear either as I was hurrying to finish up. I'll leave place holders in this thread for future updates for the rear (parking shoe and rotor replacement).

Front

Rear

Also, when installing new pads, be sure to follow the instructions for breaking them in. I had to do a series of 45-0 stops to bed mine in.

Edit: I realized I didn't include part numbers!

Front Rotors: Centric Parts 120.67042 Premium Brake Rotor with E-Coating
Front Pads: Hawk Performance HB446Y.725 LTS Brake Pad
Rear Pads: Centric Parts 104.07910 104 Series Semi Metallic Standard Brake Pad

Though I didn't replace mine, the part number for rear Centric Premium Rotors is 120.67043.

ChrisHager 02-25-2013 02:59 PM

Front Brakes
 
2 Attachment(s)
Tools/Supplies:

Floor Jack
Jack Stands
19MM Socket
18MM Socket
17MM Socket
Ratchet
10MM Wrench
Pliers
Flat Head Screw Driver
Wire Brush
Grease
Rubber Mallet
C-Clamp
Brake Cleaner
Paper Towels
Clear Hose
Cup/Container

Jack up the WJ and rest it on Jack Stands. Remove the tire (19MM, 18MM if the caps have fallen off).

http://i1103.photobucket.com/albums/...psfbb8a86a.jpg

Remove the bolts attaching the caliper to the caliper bracket (2 17MM bolts).

http://i1103.photobucket.com/albums/...ps26c72569.jpg

Pop off the caliper. I used a screw driver to help a little.

http://i1103.photobucket.com/albums/...psea9ba123.jpg

If it doesn't come off easily, it may be necessary to loosen the bleeder valve in order to relieve some pressure.

Bleeder Valve

http://i1103.photobucket.com/albums/...psd602806c.jpg

The front bleeder valve is loosened with a 10MM wrench.

http://i1103.photobucket.com/albums/...ps71a00747.jpg

Caliper removed - be sure to hang this up and out of the way. You don't want to let it dangle from the brake line.

http://i1103.photobucket.com/albums/...ps82b03a4f.jpg

Once the caliper is off, remove the caliper bracket (2 18MM bolts).

http://i1103.photobucket.com/albums/...psf56c848b.jpg

http://i1103.photobucket.com/albums/...psca3b3af5.jpg

The caliper bracket should come right off.

Caliper Bracket/Brake Pads

http://i1103.photobucket.com/albums/...ps28506d56.jpg

And this is where we are:

http://i1103.photobucket.com/albums/...ps255f5528.jpg

ChrisHager 02-25-2013 03:00 PM

2 Attachment(s)
Clean up the caliper bracket...

Notice how grimy the pad clips are:

http://i1103.photobucket.com/albums/...ps7507e133.jpg

Get out your wire brush and clean 'em up (if new are not supplied)!

http://i1103.photobucket.com/albums/...pscca27777.jpg

We also want to remove the caliper slide pins and clean/re-grease them.

The pins slide right out. They're only held in by the rubber boot. Notice the lip on the pin:

http://i1103.photobucket.com/albums/...psa6f4357c.jpg

http://i1103.photobucket.com/albums/...ps9e8d3be0.jpg

http://i1103.photobucket.com/albums/...psee06f160.jpg

Clean the pins off with brake cleaner (I also tried to clean out the pin boots/slides) ...

http://i1103.photobucket.com/albums/...ps9e5b3137.jpg

...and grease everything. I stuffed some grease in the holes as well (don't go overboard).

http://i1103.photobucket.com/albums/...ps1fc7630a.jpg

Finally, put the pin back in and push down until the boot pops back over the lip in the pin. The new grease makes this a very simple task.

http://i1103.photobucket.com/albums/...ps54962ff8.jpg

Also, while you're greasy, add some to the pad clips.

http://i1103.photobucket.com/albums/...ps9ba5c777.jpg

Remove the old rotor. If these little keepers are present, spin/yank them off (2). A screwdriver or pliers may be helpful:

http://i1103.photobucket.com/albums/...ps01630918.jpg

http://i1103.photobucket.com/albums/...ps6daa395e.jpg

Removing the rotor can sometimes be difficult. I smacked mine with a rubber mallet to help with removal.

http://i1103.photobucket.com/albums/...ps12384db2.jpg

ChrisHager 02-25-2013 03:01 PM

New Parts
 
2 Attachment(s)
I bought some Centric Rotors. Because of the coating on them, I was advised to wash them with dish soap, not brake cleaner. If you're brave, a deep kitchen sink works well. I was nervous when I did this because my wife was staring at me...

These rotors are really nice!

http://i1103.photobucket.com/albums/...ps093abcba.jpg

http://i1103.photobucket.com/albums/...ps00f9b76f.jpg

http://i1103.photobucket.com/albums/...ps17840d9d.jpg

http://i1103.photobucket.com/albums/...ps900a5556.jpg

I also opted for Hawk LTS brake pads for the front.

http://i1103.photobucket.com/albums/...ps83c2c624.jpg

http://i1103.photobucket.com/albums/...ps682a5ed4.jpg

ChrisHager 02-25-2013 03:02 PM

Installation
 
2 Attachment(s)
First, slip the new rotor on. Try to avoid touching the surfaces where the brake pads will touch. In the following picture, you'll see that I installed the rotor keeper things. I ended up pulling them back off to ensure everything mounted flush.

http://i1103.photobucket.com/albums/...psc658952a.jpg

Next, install the caliper bracket.

http://i1103.photobucket.com/albums/...ps9e6762a9.jpg

Next, loosen the bleeder valve on the caliper and slip a clear hose over the valve.

http://i1103.photobucket.com/albums/...psf7130f35.jpg

Using a C-Clamp, gently press the caliper pistons in. By opening the bleeder valve, the old fluid will be expelled during this step. The hose in the previous step is used to direct the brake fluid into a container.

http://i1103.photobucket.com/albums/...psdb10a468.jpg

http://i1103.photobucket.com/albums/...ps7f724a55.jpg

When the pistons are pressed back, tighten the bleeder valve.

The Hawk pads came with some high temp lubricant which is used to reduce noise. If you have this, spread it on the back of the pads (NOT THE FACE OF THE PADS!!).

http://i1103.photobucket.com/albums/...psf4e488e3.jpg

Insert the pads into the caliper bracket.

http://i1103.photobucket.com/albums/...ps39270552.jpg

Next, slip the caliper over the pads and attach it with the two bolts. Be sure you have the caliper pins positioned properly.

Upper Pin

Incorrect

http://i1103.photobucket.com/albums/...psffe86c0e.jpg

Correct

http://i1103.photobucket.com/albums/...psbd42e6fc.jpg

Lower Pin

Correct

http://i1103.photobucket.com/albums/...ps3f8c6b2f.jpg

Now that everything is nice and tight, remove the cap to the master cylinder (make sure it's full of fluid), attach the hose to the bleeder valve, and bleed the brake. My preference is to have a helper push on the brake pedal while I open the valve. When the fluid finishes coming out, tighten the bleeder valve and have your helper let off the brake. Repeat until no bubbles come out. Be sure to keep brake fluid in the master cylinder!

http://i1103.photobucket.com/albums/...pse0ecd0b3.jpg

Finally, install the wheel/tire, torque the lug nuts, and move on the the next wheel.

http://i1103.photobucket.com/albums/...ps4e169251.jpg

ChrisHager 02-25-2013 03:03 PM

Rear
 
2 Attachment(s)
Tools/Supplies:

Floor Jack
Jack Stands
19MM Socket
18MM Socket
T-45 Torx Socket
Ratchet
3/8" Wrench
Pliers
Flat Head Screw Driver
Wire Brush
Grease
Rubber Mallet
C-Clamp
Brake Cleaner
Paper Towels
Clear Hose
Cup/Container

Jack up the WJ and rest it on jack stands. Remove the tire (19MM, 18MM if the caps have fallen off).

Remove the caps covering the slide pins. The slide pins (2) are removed with a T-45 torx socket.

http://i1103.photobucket.com/albums/...ps3610ac31.jpg

http://i1103.photobucket.com/albums/...ps577e2548.jpg

Remove the caliper:

http://i1103.photobucket.com/albums/...ps72d51010.jpg

Remove the caliper bracket bolts (2 - 18MM):

http://i1103.photobucket.com/albums/...psda491a61.jpg

The caliper bracket will lift off.

http://i1103.photobucket.com/albums/...ps2ac5a374.jpg

Loosen the bleeder valve (3/8"):

http://i1103.photobucket.com/albums/...psc7b63235.jpg

Gently compress the caliper piston with a C-Clamp:

http://i1103.photobucket.com/albums/...ps27c21c7a.jpg

Close the bleeder valve.

Clean the caliper bracket where the brake pads contact with a wire brush and apply grease to the cleaned area.

http://i1103.photobucket.com/albums/...ps04043225.jpg

http://i1103.photobucket.com/albums/...psf795d95b.jpg

ChrisHager 02-25-2013 03:06 PM

Installation
 
2 Attachment(s)
Clean and grease the slider pins and install back in the caliper. Install the caps as well.

http://i1103.photobucket.com/albums/...psa8e17e87.jpg

(I may have gotten a little wild with the grease)

http://i1103.photobucket.com/albums/...ps00994d59.jpg

Install the caliper bracket with the two bolts.

http://i1103.photobucket.com/albums/...pscca435f7.jpg

I applied grease to the backs of the new pads:

http://i1103.photobucket.com/albums/...ps28c2e83f.jpg

Slip the front pad into the caliper bracket and the rear pad into the caliper piston (disregard the keeper wire in this picture).

http://i1103.photobucket.com/albums/...ps7dbd98d6.jpg

Install the caliper over the caliper bracket/front brake pad and tighten the two slider pins. To install the front keeper wire, insert one end in the caliper and pull the other side up with pliers.

http://i1103.photobucket.com/albums/...ps9d8bea62.jpg

http://i1103.photobucket.com/albums/...psd07a3f9e.jpg

http://i1103.photobucket.com/albums/...ps672ac7d5.jpg

Remove the lid to the master cylinder and ensure there is plenty brake fluid, slip the hose over the bleeder valve, have your helper push the brake pedal, loosen the bleeder valve, tighten the bleeder valve when the fluid stops flowing, have your helper release the brake pedal, and repeat until no bubbles come out of the caliper.

http://i1103.photobucket.com/albums/...ps1242619f.jpg

Lastly, install the wheel/tire and torque the lug nuts properly.

ChrisHager 02-25-2013 03:08 PM

2 Attachment(s)
Place Holder

ChrisHager 02-25-2013 03:10 PM

2 Attachment(s)
Place Holder

ChrisHager 02-25-2013 03:10 PM

2 Attachment(s)
Place Holder

STaTTiKK 12-04-2013 06:30 PM

right on man great post..

noeffort 12-06-2013 11:27 AM

Excellent writeup. I have been using the same centric ecoating rotors for my jeep and the other 3 vehicles in my family's "fleet". Good stuff.


The time now is 11:17 AM.

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