Acura RSX Honda Integra. Manual — part 355

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Clearance:

0

0.4 mm (0

0.02 in.)

19-17

A

B

D
07JAG-SD40100

0

0.4 mm (0

0.02 in.)

A
22 N·m
(2.2 kgf·m, 16 lbf·ft)

B

C

A
116 mm (4.6 in.)

B
8 x 1.0 mm
15 N·m
(1.5 kgf·m, 11 lbf·ft)

C

5. With a feeler gauge (A), measure the clearance

between the gauge body and the adjusting nut (B)
as shown.
If the clearance between the gauge body and the
adjusting nut is 0.4 mm (0.02 in.), the pushrod-to-
piston clearance is 0 mm. However, if the clearance
between the gauge body and the adjusting nut is
0 mm, the pushrod-to-piston clearance is 0.4 mm
(0.02 in.) or more. Therefore, it must be adjusted
and rechecked.

6. If the clearance is incorrect, loosen the star locknut

(A), and turn the adjuster (B) in or out to adjust.

• Adjust the clearance while the specified vacuum

is applied to the booster.

• Hold the yoke (C) while adjusting.

7. Tighten the star locknut securely.

8. Remove the special tool (D).

9. Check the pushrod length (A) as shown if the

booster is removed. If the length is incorrect,
loosen the pushrod locknut (B), and turn the yoke
(C) in or out to adjust.

10. Install the master cylinder (see page 19-15).

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Functional Test

Leak Test

19-18

Conventional Brake Components

Brake Booster Test

A

B

1. With the engine stopped, press the brake pedal

several times to deplete the vacuum reservoir, then
press the brake pedal hard, and hold it for
15 seconds. If the brake pedal sinks, either the
master cylinder is bypassing internally, or the
brake system (master cylinder, lines, modulator-
control unit, proportioning control valve, or
calipers) is leaking.

2. Start the engine with the brake pedal pressed. If the

brake pedal sinks slightly, the vacuum booster is
operating normally. If the brake pedal height does
not vary, the booster or check valve is faulty.

3. With the engine running, press the brake pedal

lightly, and shift the transmission to the D position.
Apply just enough pressure to hold back automatic
transmission creep. If the brake pedal sinks more
than 10 mm (3/8 in.) in 3 minutes, the master
cylinder is faulty. A slight change in brake pedal
height when the A/C compressor cycles on and off
is normal. (The A/C compressor load changes the
vacuum available to the booster.)

1. Press the brake pedal with the engine running, then

stop the engine. If the brake pedal height does not
vary while pressed for 30 seconds, the vacuum
booster is OK. If the pedal height rises go to step 6.
If it does not rise go to step 2.

2. Turn the engine off, and wait 30 seconds. Press the

brake pedal several times using normal pressure.
When the brake pedal is first pressed, it should be
low. On consecutive applications, the brake pedal
height should gradually rise. Does the pedal rise on
each consecutive application? If it rises the booster
is OK. If it does not go to step 3.

3. Disconnect the brake booster vacuum hose (check

valve built-in) (A) at the booster (B) side.

4. Start the engine, and let it idle. There should be

vacuum available. If no vacuum is available, the
check valve is not working properly. Replace the
brake booster vacuum hose and check valve, and
retest. If vacuum is found, go to step 5.

5. Reconnect the brake booster vacuum hose to the

booster.

6. Start the engine, and then pinch the brake booster

vacuum hose between the check valve and the
booster.

7. Turn the engine off, and wait 30 seconds. Press the

brake pedal several times using normal pressure.
When the brake pedal is first pressed, it should be
low. On consecutive applications, the brake pedal
height should gradually rise.

• If the pedal position varies, replace the brake

booster vacuum hose/check valve assembly.

• If the pedal position does not vary, replace the

brake booster.

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19-19

Brake Booster Replacement

B

A

C

C
8 x 1.25 mm
13 N·m (1.3 kgf·m, 9.4 lbf·ft)

B

A

A

1. Remove the master cylinder (see page 19-15).

2. Disconnect the vacuum hose (A) from the brake

booster.

3. Remove the master cylinder brake lines (B) from

the brake line holder (C).

4. Remove the lock pin (A) and the joint pin (B), then

disconnect the yoke from the brake pedal.

5. Remove the brake booster mounting flange

nuts (C).

6. Remove the brake booster (A) from the engine

compartment.

• Be careful not to damage the booster

surfaces and threads of the booster stud
bolts.

• Be careful not to bend or damage the

brake lines.

7. Install the brake booster in the reverse order of

removal, and note these items:

• Adjust the pushrod clearance before installing

the brake booster (see page 19-16).

• Use a new lock pin whenever installing.
• After installing the brake booster and master

cylinder, fill the reservoir with new brake fluid,
bleed the brake system (see page 19-8), and
adjust the brake pedal height and free play
(see page 19-6).

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Inspection

Replacement

Brake pad thickness:

Standard:

8.5

9.5 mm (0.33

0.37 in.)

Service limit: 1.6 mm (0.06 in.)

19-20

Conventional Brake Components

Rear Brake Pad Inspection and Replacement

A

B

B

A

C

D

A

B

A

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
1-12).

2. Remove the rear wheels.

3. Check the thickness of the inner pad (A) and outer

pad (B). Do not include the thickness of the backing
plate.

4. If the brake pad thickness is less than the service

limit, replace all the pads as a set.

1. Remove the bolt (A) and brake hose (B) from the

mounting bracket.

2. Remove the caliper bolts (C), and remove the

caliper (D) from the caliper bracket.

3. Remove the pad shims (A) and pads (B).

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