Jaguar XJ (X350). Service manual — part 166

7

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Brake pads

8

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Brake disc

For vehicles with high performance brakes, the brake system consists of the following components:

•

Brake pads

•

Single piston, fixed calipers

•

Brake discs

•

Steel braided brake hoses

The brake caliper has two retaining bolts that attach the brake caliper to the anchor plate. These are

of single, sliding piston type. The anchor plate is attached to the wheel knuckle with two bolts. The

hydraulic system provides separate circuits for each pair of diagonally opposed wheels (i.e. left front,

right rear and right front, left rear).

The brake disc is manufactured from cast iron and is of the vented type. It is retained on the hub by

two retaining clips and the wheel studs.

Front Disc Brake

STANDARD BRAKES - COMPONENT LOCATION

Item

Part Number

Description

1

Guide pin dust cover (2 off)

2

Guide pin (2 off)

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3

Guide pin bush (2 off)

4

Bleed screw dust cap

5

Bleed screw

6

Brake hose

7

Bolt - brake hose to caliper

8

Anti-rattle spring

9

Brake caliper housing

10

Piston dust cover

11

Piston

12

Caliper carrier

13

Inboard brake pad

14

Outboard brake pad

15

Retaining washers (2 off)

16

Brake disc

17

Rivets (3 off)

18

Brake dust shield

19

Caliper carrier bolts (2 off)

INTRODUCTION

The front standard type braking system used on the naturally aspirated vehicles features 326 x 20

mm (12.83 x 0.79 in) diameter ventilated brake discs and cast iron, single piston, sliding calipers.

The caliper is mounted within a fixed carrier that is secured to the front wheel knuckle with 2 bolts.

When hydraulic pressure is supplied to the caliper, the piston extends to force the inner pad against

the brake disc. The caliper reacts and slides along 2 guide pins to bring the outer pad into contact

with the brake disc.

Each inboard brake pad is installed with a pressed steel anti-rattle spring.

NOTE:

There is no wear indicator installed to the front brake pads.

The brake disc is manufactured from cast iron and is of the vented type. The disc is retained on the

wheel hub by 2 retaining washers and the wheel nuts.

PERFORMANCE BRAKES - COMPONENT LOCATION

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