Workshop Manuals Factory service & repair Land Rover
01 02 AMENDMENT INSTRUCTION SHEET03 INTRODUCTION04 GENERAL SPECIFICATION DATA05 ENGINE TUNING DATA06 GENERAL FITTING REMINDERS07 MAINTENANCE08 ENGINE09 FUEL SYSTEM10 COOLING SYSTEM11 MANIFOLD AND EXHAUST SYSTEM12 CLUTCH13 MANUAL GEARBOX14 TRANSFER GEARBOX15 PROPELLER SHAFTS16 REAR AXLE AND FINAL DRIVE17 FRONT AXLE AND FINAL DRIVE18 STEERING19 FRONT SUSPENSION20 REAR SUSPENSION21 BRAKES22 WHEELS AND TYRES23 CHASSIS AND BODY24 HEATING AND VENTILATION25 AIR CONDITIONING26 WIPERS AND WASHERS27 ELECTRICAL28 INSTRUMENTS
Land Rover 300Tdi Defender12 · CLUTCH
12 · Transmission

HYDRAULIC FAULTS

Make
Land Rover
Model
Defender 300Tdi Defender
Section
HYDRAULIC FAULTS
CLUTCHHYDRAULIC FAULTS
background image

33

CLUTCH

2

FAULT DIAGNOSIS

FAULT/SYMPTOM CHART

Symptoms

Slip

Spin/Drag

Judder/Fierce

Fault

Item

*

*

*

Worn or oil on clutch linings

2

*

*

*

Mechanical damage

4 5 6 7 8

*

*

Distorted clutch plate

2

*

Failed or air in hydraulic system

12 13

*

*

Primary shaft tight fit in crankshaft bush

15 17

*

Clutch splines sticking

2 15

*

Weak clutch plate springs or insecure/worn

engine/gearbox mountings

6

*

Insecure/worn propeller shafts

*

Insecure/worn suspension components/rubber

bushes

The items refered to in this chart relate to the clutch components shown in J6270 and J6271.

See Description

and operation, Description

CLUTCH NOISE - MECHANICAL FAULTS

Noise from clutch or gearbox in neutral, which
disappears when clutch is depressed.

Suspect gearbox input/primary shaft bearings
See MANUAL GEARBOX, Fault diagnosis,
R380 gearbox 
.

Noise from clutch or gearbox in neutral, which
changes tone or becomes worse when the clutch
is depressed.

Suspect worn release bearing.

Knocking/rattling from clutch or gearbox in
neutral, which is reduced or disappears when the
clutch is depressed.

Suspect worn/weak release lever retainer or
clutch unit.

Noise from clutch or gearbox in neutral, which
disappears when clutch is depressed.

Suspect gearbox fault

See MANUAL

GEARBOX, Fault diagnosis, R380 gearbox .

HYDRAULIC FAULTS

Unable to dis-engage clutch, little or no pedal
resistance.

1. Check condition, specification and level of fluid.
2. Check pipes and cylinders for leaks.
3. Check that air vent in reservoir lid is clear.

Suspect faulty master cylinder if no fluid leaks
present

See Repair, Master cylinder .

Spongy pedal operation

1. Check condition, specification and level of fluid.
2. Check that air vent in reservoir lid is clear.

Suspect air in fluid

See Repair, Bleed

hydraulic system .

Clutch is difficult to dis-engage and/or does not
immediately re-engage when pedal is released.

1. Check condition, specification and level of fluid.
2. Check that air vent in reservoir lid is clear.

Suspect pedal pivot, master cylinder or slave
cylinder seizure

See Repair, Master cylinder .

Parts & tools for this job For Land Rover Defender

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