2006 ACURA CSX brake



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19-27
Brake Booster Replacement
A
B
6x1.0mm
9.8 N·m
(1.0 kgf·m, 7.2 lbf·ft)
A
B A A
B
C
8x1.25mm
13 N·m
(1.3 kgf·m,
9.4 lbf·ft)
1. Remove the master cylinder (see page 19-24).
2. Disconnect the brake booster vacuum hose (A) from the brake booster (B).
3. Remove the engine wire harness clamps (A).
4. Remove the air cleaner bracket (B). 5. Remove the lock pin (A) and the clevis pin (B), then
disconnect the yoke from the brake pedal.
6. Remove the brake booster mounting nuts (C).
(cont’d)
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19-28Conventional Brake Components
Brake Booster Replacement (cont’d)
B
A
7. Pull the brake booster (A) forward.
 Be careful not to damage the brakebooster mounting surfaces and the
threads on the booster studs.
 Be careful not to bend or damage the brake lines.
8. Remove the brake booster by pu lling it out and
turning it, and remove it from the engine
compartment.
NOTE: Use a new brake booster gasket (B) during
reassembly. 9. Install the brake booster in the reverse order of
removal, and note these items:
 Install the master cylinder after installing the brake booster (see page 19-24).
 Replace the master cylinder rod seal.
 Check the brake pedal height and free play after installing the master cylinder, and adjust it if
necessary (see page 19-6).
 Bleed the brake system (see page 19-9).
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19-24 Conventional Brake Components
Master Cylinder Replacement
B
6x1.0mm
9.8 N·m (1.0 kgf·m, 7.2 lbf·ft)
A B
D
E G
MASTER
CYLINDER SIDE
A
ABS: 15 N·m
(1.5 kgf·m, 11 lbf·ft)
VSA: 22 N·m
(2.2 kgf·m, 16 lbf·ft) C
15 N·m
(1.5 kgf·m,
11 lbf·ft)
D
F
 Do not spill brake fluid on the vehicle; it may damage the paint; if brake fluid gets on the paint,
wash it off immediately with water.
 Be careful not to damage or deform the brake lines during removal and installation.
 Plug the ends of the hoses and the joints to prevent spilling brake fluid.
1. Remove the air cleaner (see page 11-345).
2. Remove the reservoir cap and brake fluid from the master cylinder reservoir with a syringe.
3. Disconnect the brake fluid l evel switch connector
(A).
4. Remove the reservoir tank mounting bolt (B). 5. Disconnect the brake lines (A) from the master
cylinder (B). To prevent spills, cover the hose joints
with clean rags or shop towels.
6. Remove the master cylinder mounting nuts (C) and washers (D).
7. Remove the master cylinder from the brake booster (E). Be careful not to bend or damage the brake
lines when removing the master cylinder.
8. Remove the rod seal (F) from the master cylinder. NOTE: During installation, set a new rod seal onto
the master cylinder with its grooved side (G)
toward the master cylinder.
9. Install the master cylinder in the reverse order of removal, and note these items:
 Coat the inner bore lip and outer circumference of the new rod seal with the Shin-Etsu silicone
grease (P/N 08798-9013).
 Make sure not to get any silicone grease on the terminal part of the connectors and switches,
especially if you have silicone grease on your
hands or gloves.
 Check the brake pedal height and free play after installing the master cylinder, and adjust it if
necessary (see page 19-6).
10. Bleed the brake system (see page 19-9).
11. Spin the wheels to check for brake drag.
Replace.
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Inspection
Replacement
Brake pad thickness:
Standard: 8.3 9.4 mm (0.33 0.37 in.)
Service limit: 1.6 mm (0.06 in.)
19-29
Rear Brake Pad Inspection and Replacement
A
B
C A A
8x1.25mm
B
8x1.0mm
C
C D
Frequent inhalation of brake pad dust, regardless of
material composition, could be hazardous to your
health.
 Avoid breathing dust particles.
 Never use an air hose or brush to clean brake assemblies. Use an OSHA-approved vacuum
cleaner.
1. Raise the rear of the vehicle, and support it with safety stands in the proper locations (see page
1-11).
2. Remove the rear wheels.
3. Check the thickness (A) of the inner pad (B) and the outer pad (C). Do not include the thickness of the
backing plate.
4. If any part of the brake pad thickness is less than the service limit, replace the rear brake pads as a
set.
5. Clean the mating surfaces between the brake disc and the inside of the wheel, then install the rear
wheels. 1. Remove some brake fluid from the master cylinder.
2. Raise the rear of the vehicle, and support it with
safety stands in the proper locations (see page
1-11).
3. Remove the rear wheels.
4. Remove the brake hose mounting bolt (A).
5. Remove the flange bolts (B) while holding respective caliper pin (C) with a wrench. Be careful
not to damage the pin boot, and remove the caliper
(D). Check the hose and pin boots for damage and
deterioration.
NOTE: Do not twist the brake hose and the parking
brake cable to prevent damage.
(cont’d)
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19-30Conventional Brake Components
Rear Brake Pad Inspection and Replacement (cont’d)
A
B
A
B C
C A
A C
B
6. Remove the pad shims (A) and the brake pads (B).
7. Remove the pad retainers (A).
8. Clean the caliper bracket (B) thoroughly; remove any rust, and check for grooves and cracks. Verify
that the caliper pins (C) move in and out smoothly.
Clean and lube if needed.
9. Inspect the brake disc for runout, thickness, parallelism (see page 19-32) and check for damage
and cracks.
10. Apply a thin coat of M-77 assembly paste (P/N 08798-9010) to the retainer mating surface of the
caliper bracket (indicated by the arrows).
11. Install the pad retainers. Wipe excess assembly pasteofftheretainers.Keeptheassemblypasteoff
the brake disc and brake pads. 12. Apply a thin coat of M-77 assembly paste
(P/N 08798-9010) to the pad side of the shims (A),
the back of the brake pads (B), and the other areas
indicated by the arrows. Wipe excess assembly
paste off the pad shims and the brake pads friction
material. Keep grease and assembly paste off the
brake disc and the brake pads. Contaminated brake
disc or brake pads reduce stopping ability.
13. Install the brake pads and the pad shims correctly. Install the brake pad with the wear indicator (C) on
the bottom inside. If you are reusing the brake pads,
always reinstall the brake pads in their original
positions to prevent a momentary loss of braking
efficiency.
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19-31
E
8x1.25mm
22 N·m
(2.2 kgf·m, 16 lbf·ft)D
8x1.0mm
23 N·m
(2.3 kgf·m,
17 lbf·ft)
A B
C
14. Rotate the caliper piston (A) clockwise into the
cylinder, then align the cutout (B) in the piston with
the tab (C) on the inner pad by turning the piston
back. Lubricate the boot with rubber grease to
avoid twisting the piston boot. If the piston boot is
twisted, back it out so it is positioned properly.
NOTE: Be careful when moving the piston back in
the caliper; brake fluid might overflow from the
master cylinder’s reservoir. If brake fluid gets on
any painted surface, wash it off immediately with
water.
15. Install the caliper. Install the flange bolts (D), and tighten it to the specified torque while holding the
respective caliper pin with a wrench being careful
not to damage the pin boots.
16. Install the brake hose mounting bolt (E).
17. Clean the mating surfaces between the brake disc and the inside of the wheel, then install the rear
wheels. 18. Press the brake pedal several times to make sure
the brakes work.
NOTE: Engagement may require a greater pedal
stroke immediately after the brake pads have been
replaced as a set. Several applications of the brake
pedal will restore the normal pedal stroke.
19. Add brake fluid as needed.
20. After installation, check for leaks at hose and line joints or connections, and retighten if necessary.
Test-drive the vehicle, then recheck for leaks
(see page 19-37).
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Runout
Brake disc runout:Service limit: 0.04 mm (0.0016 in.) Max. refinishing limit: 8.0 mm (0.31 in.)
19-32
Conventional Brake Components
Rear Brake Disc Inspection
A
B
108 N·m
(11.0 kgf·m, 79.6 lbf·ft) 10 mm
(0.39 in.)
1. Raise the rear of the vehicle, and support it with
safety stands in the proper locations (see page
1-11).
2. Remove the rear wheels.
3. Remove the brake pads (see page 19-29).
4. Inspect the brake disc to wheel surface for damage and cracks. Clean the brake disc thoroughly, and
remove all rust.
5. Install suitable flat washers (A) and wheel nuts (B), and tighten the wheel nuts to the specified torque
to hold the brake disc securely against the hub.
6. Set up the dial gauge against the brake disc as shown, and measure the runout at 10 mm (0.39 in.)
from the outer edge of the brake disc. 7. If the brake disc is beyond the service limit, refinish
the brake disc with a Honda-approved
commercially available on-car brake lathe.
NOTE: If the brake disc is beyond the service limit for refinishing, replace it (see page 19-34).
 If the brake disc is replaced with a new one, check the new disc for runout. If the new disc is
out of specification, refinish the disc.
8. Install the brake pads (see page 19-29).
9. Clean the mating surfaces between the brake disc and the inside of the wheel, then install the rear
wheels.
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Thickness and Parallelism
Brake disc thickness: Standard: 8.9 9.1 mm (0.35 0.36 in.)
Max. refinishing limit: 8.0 mm (0.31 in.)
Brake disc parallelism: 0.015 mm (0.0006 in.) max.
19-33
10 mm (0.39 in.)
1. Raise the rear of the vehicle, and support it withsafety stands in the proper locations (see page
1-11).
2. Remove the rear wheels.
3. Remove the brake pads (see page 19-29).
4. Using a micrometer, measure the brake disc thickness at eight points, about 45 ° apart and
10 mm (0.39 in.) in from the outer edge of the brake
disc. Replace the brake disc if the smallest
measurement is less than the max. refinishing limit.
NOTE: This is the maximum allowable difference
between the thickness measurements. 5. If the brake disc is beyond the service limit for
parallelism, refinish the brake disc with a Honda-
approved commercially available on-car brake
lathe.
NOTE: If the brake disc is beyond the service limit
for refinishing, replace it (see page 19-34).
6. Install the brake pads (see page 19-29).
7. Clean the mating surfaces between the brake disc and the inside of the wheel, then install the rear
wheels.
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