Nissan Frontier. Manual - part 107

BR-8

< BASIC INSPECTION >

REAR DISC BRAKE

REAR DISC BRAKE

BRAKE PAD
BRAKE PAD : Inspection

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PAD WEAR

Check pad thickness from an inspection hole on cylinder body.

Check using a scale if necessary.

DISC ROTOR
DISC ROTOR : Inspection

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VISUAL

Check surface of disc rotor for uneven wear, cracks, and serious damage. Replace as necessary.

RUNOUT

1. Attach disc rotor to wheel hub using wheel nuts at two or more

positions. 

2. Inspect runout using dial gauge placed at 10 mm (0.39 in) inside

disc edge as shown.

NOTE:

Before measuring, make sure that wheel bearing axial end play

is within the specification. Refer to 

RAX-6, "Rear Axle Bearing"

(C200), 

RAX-18, "Rear Axle Bearing"

 (M226).

3. When runout exceeds limit value, displace mounting positions of disc rotor by one hole. And then find a

position of the minimum value for runout. 

4. If runout is outside the specified value after performing the above operation, refinish disc rotor using Tool.

THICKNESS

Check the thickness of the disc rotor using a micrometer. Replace

disc rotor if the thickness is less then the repair limit thickness.

Standard thickness (new) : Refer to 

BR-52, "Rear Disc 

Brake"

.

Repair limit thickness

: Refer to 

BR-52, "Rear Disc 

Brake"

.

BRA0010D

Runout limit 

: Refer to 

BR-52, "Rear Disc Brake"

.

(with it attached to the vehicle)

Tool number

: 38-PFM92 ( — )

AWFIA0492ZZ

Standard thickness (new)

: Refer to 

BR-52, "Rear 

Disc Brake"

.

Repair limit thickness

: Refer to 

BR-52, "Rear 

Disc Brake"

.

Maximum uneven wear
(measured at 8 positions)

: Refer to 

BR-52, "Rear 

Disc Brake"

.

SFIA2284E

BRAKE BOOSTER

BR-9

< BASIC INSPECTION >

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BRAKE BOOSTER

Inspection

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OPERATION

With engine stopped, change vacuum to atmospheric pressure by

depressing brake pedal several times. Then with brake pedal fully

depressed, start engine and when vacuum pressure reaches the

standard, make sure that clearance between brake pedal and floor

panel decreases.

AIR TIGHT

• Run engine at idle for approximately 1 minute, and stop it after

applying vacuum to booster. Depress brake pedal normally to

change vacuum to atmospheric pressure. Make sure that distance

at intervals of 5 seconds between brake pedal and floor panel

gradually increases.

• Depress brake pedal while engine is running, and stop engine with pedal depressed. The pedal stroke

should not change after holding pedal down for 30 seconds.

BRA0037D

SBR365AA

BR-10

< BASIC INSPECTION >

VACUUM LINES

VACUUM LINES

Inspection

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VISUAL INSPECTION

Check for improper assembly, damage and deterioration. Replace as necessary.

CHECK VALVE INSPECTION

Airtightness Inspection

Use a suitable tool to test brake booster vacuum check valve. Con-

nect to brake booster side of check valve.

Check valve specification

: Refer to 

BR-52, "Check 

Valve"

.

LFIA0217E

BRAKE MASTER CYLINDER

BR-11

< BASIC INSPECTION >

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BRAKE MASTER CYLINDER

On Board Inspection

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LEAK INSPECTION

Check for leaks at master cylinder to brake booster attachment point, reservoir tank, and brake tube connec-

tions.