Workshop Manuals Factory service & repair Land Rover
01 Discovery Series II - Workshop Manual - 1999MY ON - 6th Edition - NAS02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 INTRODUCTION32 33 GENERAL INFORMATION34 35 GENERAL DATA36 IDENTIFICATION NUMBERS37 38 TORQUE WRENCH SETTINGS39 40 LIFTING AND TOWING41 CAPACITIES, FLUIDS, LUBRICANTS AND SEALANTS42 43 44 MAINTENANCE45 46 ENGINE - V847 48 EMISSION CONTROL - V849 50 ENGINE MANAGEMENT SYSTEM - V851 FUEL DELIVERY SYSTEM - V852 53 COOLING SYSTEM - V854 55 MANIFOLDS AND EXHAUST SYSTEMS - V856 57 58 59 CLUTCH - V860 61 MANUAL GEARBOX - R38062 63 TRANSFER BOX - LT230SE64 65 66 AUTOMATIC GEARBOX - ZF4HP22 - 2467 PROPELLER SHAFTS68 69 REAR AXLE70 71 72 73 74 75 FRONT AXLE76 77 78 79 STEERING80 FRONT SUSPENSION81 82 83 REAR SUSPENSION84 85 86 87 BRAKES88 RESTRAINT SYSTEMS89 90 DOORS91 EXTERIOR FITTINGS92 93 INTERIOR TRIM COMPONENTS94 SCREENS95 96 97 SEATS98 99 SUNROOF100 CHASSIS AND BODY DIMENSIONS101 102 103 104 PANEL REPAIRS105 106 107 108 BODY SEALING MATERIALS109 110 111 112 113 CORROSION PREVENTION AND SEALING114 PAINTING115 HEATING AND VENTILATION116 117 AIR CONDITIONING118 119 WIPERS AND WASHERS120 CHARGING AND STARTING121 122 LIGHTING123 BODY CONTROL UNIT124 125 126 ALARM SYSTEM AND HORN127 128 WINDOWS129 IN CAR ENTERTAINMENT130 HARNESSES131 DRIVING AIDS132 NAVIGATION SYSTEM133 INSTRUMENTS
Land Rover Discovery II59 · CLUTCH - V8
59 · Transmission

CLUTCH - V8 (Description): DESCRIPTION AND OPERATION

Make
Land Rover
Model
Discovery II
Section
DESCRIPTION AND OPERATION › Description
CLUTCH - V8Description · page 1 of 3
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CLUTCH - V8

33-2-6

DESCRIPTION AND OPERATION

Description

General
The clutch system is a conventional diaphragm type clutch operated by a hydraulic cylinder. The clutch requires no 
adjustment to compensate for wear.

Hydraulic clutch
The hydraulic clutch comprises a master cylinder, slave cylinder and a hydraulic reservoir, which is also shared with 
the braking system. The master and slave cylinders are connected to each other hydraulically by plastic and metal 
pipes. The plastic section of the pipe allows ease of pipe routing and also absorbs engine movements and vibrations.

The master cylinder comprises a body with a central bore. Two ports in the body connect the bore to the hydraulic 
feed pipe to the slave cylinder and the brake/clutch fluid reservoir. A piston is fitted in the bore and has an external 
rod which is attached to the clutch pedal with a pin. Two coiled springs on the clutch pedal reduce the effort required 
to depress the pedal.

The master cylinder is mounted on the bulkhead in the engine compartment and secured with two bolts. The cylinder 
is connected to the shared brake/clutch reservoir on the brake servo by a braided connecting hose.

The slave cylinder is located on the left hand side of the gearbox housing and secured with two bolts. A heat shield 
protects the underside of the cylinder from heat generated from the exhaust system. The slave cylinder comprises a 
cylinder with a piston and a rod. A port in the cylinder body provides the attachment for the hydraulic feed pipe from 
the master cylinder. A second port is fitted with a bleed nipple for removing air from the hydraulic system after 
servicing. The piston rod locates on a clutch release lever located in the gearbox housing. The rod is positively 
retained on the release lever with a clip.

Clutch mechanism
The clutch mechanism comprises a flywheel, drive plate, pressure plate, release lever and a release bearing. The 
clutch mechanism is fully enclosed at the rear of the engine by the gearbox housing.

A clutch release bearing sleeve is attached in the gearbox housing with two bolts and located on two dowels. A spigot 
with a ball end is formed on the release bearing sleeve and provides a mounting and pivot point for the clutch release 
lever. A dished pivot washer is located on the ball of the spigot. When the release lever is located on the ball, the pivot 
washer seats against the rear face of the release lever. A spring clip is located on the lever and the pivot washer and 
secures the lever on the spigot. A small bolt retains the spring clip in position. 

The release lever is forked at its inner end and locates on the clutch release bearing carrier. The outer end of the 
release lever has a nylon seat which locates the slave cylinder piston rod. A second nylon seat, positioned centrally 
on the release lever, locates on the ball spigot of the release bearing sleeve and allows the release lever to pivot freely 
around the ball.

The clutch release bearing locates on the clutch release lever and the release bearing sleeve. The bearing is retained 
on a carrier which has two flats to prevent the carrier rotating on the release lever. A clip retains the release lever on 
the carrier. The bearing and carrier are not serviceable individually.

Flywheel
The flywheel is bolted to a flange on the rear of the crankshaft with six bolts. A dowel on the crankshaft flange ensures 
that the flywheel is correctly located. A ring gear is fitted on the outside diameter of the flywheel and seats against a 
flange. The ring gear is an interference fit on the flywheel and is installed by heating the ring and cooling the flywheel. 
The ring gear is a serviceable item and can be replaced if damaged or worn.

The operating face of the flywheel is machined to provide a smooth surface for the drive plate to engage on. Three 
dowels and six threaded holes provide for the location and attachment of the pressure plate. The flywheel is balanced 
to ensure that it does not produce vibration when rotating. A machined slot, with a series of holes within the slot, is 
located on the engine side of the flywheel. The slot accommodates the tip of the crankshaft position sensor which is 
used by the Engine Control Module (ECM) for engine management.
 

 + 

 ENGINE MANAGEMENT SYSTEM - V8, DESCRIPTION AND OPERATION, Description - engine 

management.

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