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First off, we will need some tools.
These are all the tools I used for this install.
- 14mm Socket (brake caliper bolts)
- 3/4 Socket (bracket bolts, I forget if
this is correct, I put my sockets away before checking.)
- 13/16 Socket (lug nuts)
- 1/2" Ratchet (shown here as my impact
wrench)
- 3/8" Ratchet (shown here as my air
ratchet)
- Large Flathead Screwdriver (or small pry
bar)
- Rubber Mallet (beating rotors loose if
needed)
- 4" C-Clamp (compressing caliper piston)
- WD-40 or other lubricant to break rusty
parts free
- Brake Cleaner
- Brake Pad Lubricant (not shown, little
packet from the auto parts store counter)
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Next we need some replacement parts.
Brake Pads and Brake Rotors |
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If you want to paint, pickup the
Duplicolor Caliper Paint Kit. Its a little more than a spray can,
but lasts much longer, looks better and doesn't collect brake dust.
The paint kit runs about $15 at any auto parts
store and comes in Red, Blue or Silver. Newer colors may be
available as I bought this kit YEARS ago and have done 4+ cars with
this one can so far. |
| Remove
Caliper and Bracket |
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Remove the lug nuts using the 13/16 socket
(may vary) We see here our entire brake
assembly, rusty and ugly. |
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Remove the upper and lower bolts holding the
caliper in place with a 14mm socket or wrench. |
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If you can't break it free, try prying gently
on it with a screwdriver or pry bar. Be
careful if you plan to reuse your rotors so that you don't damage
them. |
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Once the caliper is free, you need to get it
out of the way. I've found that on
nearly every car I've worked on, the best place is to just hang it
on the spring or bottom of the overhang piece on the strut. |
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Next remove the upper and lower bolts holding
in the mounting bracket. I believe this was a 3/4" for me. I assume
it's metric, but I didn't have my metric set out at the moment. I
will double check this and get it updated ASAP.
Once the bolts are removed, the bracket will just
fall off on it's own.
If you have not yet removed the brake pads, do
so now.
Also remove the pad retainer clips from the
bracket. |
| Remove
Old Rotor |
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Now we are left with just the old rusty (and
in my case warped) rotor to remove. My
passenger side rotor slid off with no issue.
My driver side was stuck on permanently. To
loosen up the rust some, I used WD40, but PB Blaster would probably
be a better choice (didn't have any). Let it sit a few minutes to
soak in and then start beating on the rotor with a rubber
mallet. (If you don't have a rubber mallet, a heavy hammer and a few
layers of cardboard will do) |
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It took a couple soakings of WD40 and I had
to beat on it a while before it finally broke free.
This rotor left behind a nice pile of rust.
You can see the rotor is all rusted out and
has expanded a bit from wear, heat, age, etc. This was the one
causing most of my horrible braking and the shaking in the steering
wheel. The vents were completely full of rust flakes. It's any
wonder it was cooling at all. |
| Painting
Now that everything has been removed, we can
paint. If you are not painting, then skip straight to the next
section. |
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Clean your bracket and caliper well with
brake cleaner. If it's not greasy, the brake cleaner should remove
all the dust and other light grime. If its overly dirty, you may
need to use some degreaser. Be careful if you do that you take care
to keep the rubber parts such as the caliper piston boot dry. |
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I only bother painting the parts I can see.
Mine is not a show car, but I like accents. Since the entire rear
half of the brackets and caliper will be behind the brake rotor, you
will never see them anyway. Slather the
paint on thick. Once you have finished, the part you started on
should be dry enough to apply another coat. I double coated
everything.
Once the bracket is done, set it aside to dry. |
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The caliper can be painted while still
attached to the car. Just be careful when moving it around so you
don't kink the brake line hose or tear it from the car.
Again, I just covered only the parts that you
will see to make the job quicker. Obviously if you have nicer wheels
where you see more of the caliper, go ahead and paint the entire
thing.
Hang the caliper back up out of the way when
you are finish. Take care not to let the painted parts touch
anything. It would be a shame to have a nice mark across your newly
painted brakes. |
| Install
New Rotor |
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Now comes time to put everything back on.
First you will need to start with the rotor.
If you are only replacing the pads, skip this
step obviously.
The rotor will most likely come packaged with
a coating of oil on it. This needs to be cleaned off first so you
don't ruin your new pads. Spray the entire surface down with brake
cleaner. I used about 1/2 can on each rotor. Make sure all the oil
residue is washed off before installing. |
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Old Rotor vs New Rotor comparison. |
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Installing the new rotor is as easy as a
wheel. Just hang it over the lugs and you are done.
The wheel holds it onto the hub, so it will be
loose until you put the wheel back on. |
| Install
New Pads |
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Next put the brake pad retaining clips back
in the bracket. Reinstall the bracket. |
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Next put the Brake Pads in place.
They simply just slide into the bracket and
retaining clips.
Make sure they sit flush with the rotor. It
took me a few tries to get it to sit correctly as the squeal pin was
getting stuck in the retaining brackets several times when I went to
push the pad in place.
Now apply the brake lubricant to both pads.
This prevents squeaks and helps lubricate any of the moving parts.
Basically any moving parts should be lubricated with the special
brake lubricant.
DO NOT use regular lubricants. Brake lubricant
is specially formulated for high heat applications. |
| Reinstall
Caliper |
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Since the old brake pads have worn thin over
time, the caliper piston will be more extended to accomodate for
extra length of the worn pad. Since your new pads will be much
thicker, sometimes 3x-4x thicker than the old pads, you will need to
compress the caliper to fit it back over the new pads. |
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Before you do this, remove the cap for the
brake fluid reservoir. You may want to put a rag around the neck as
some fluid will be forced out. |
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I always keep a 4" C-Clamp in the toolbox.
It's sole purpose in life in my garage is to compress brake pistons
and nothing else. Here you see it in action.
Slide the end over the piston, taking care to not
damage the piston edge. My clamp is rubber coated and somewhat soft
on the edge touching the piston. If yours is not, use a piece of
cardboard between the clamp and piston to prevent any damage.
Find a place for the screw on the bottom to
touch the caliper, making sure not to damage the hose, connector or
bleed valve.
Once you have it securely clamped down,
then go ahead and tighten it up until the piston is FULLY
compressed. This will cause fluid to spill out the top of the brake
fluid reservoir. No worries, you won't be needing it anyway. Just
let it spill out and wipe up any that gets on anything. |
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Next slide the caliper over the brake pads.
Line it up with the mounting holes on the bracket
and put the bolts back in place.
You should now have a fully installed brake
system ready to go. |
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Now put the wheel back on.
Please excuse the small paint smear of paint on
the rotor. It will come off the first time you hit the brakes. And
yes my wheels are dirty, but so is a brake job.
Stand back and enjoy your handy work. Enjoy
the fact that you also saved yourself quite a bit in labor charges
too. |