Clutch; Clutch Hydraulic System Operation; Clutch Hydraulic Fluid; General Information - Jeep J-10 Series 1982 Technical & Service Manual

2A-1
CLUTCH
SECTION INDEX
Clutch Service—Four-Cylinder CJ-Scrambler
Clutch Service—Six- and Eight-Cylinder Models
Pigs
2A-9
2A-15
General Information
Tools
2A-1
2A-22
GENERAL INFORMATION
Clutch Adjustments 2A-7
Clutch Service 2A-2
Clutch Linkage 2A-8
GENERAL
Six- and Eight-Cylinder Models
The clutch assembly used in eight-cylinder Cherokee,
Wagoneer and Truck models consists of a single dry-disc
driven plate and a spring and lever-type clutch cover
(fig. 2A-1). Two clutch cover styles are used. An 11.0-
inch (27.9 cm) diameter semi-centrifugal cover is used
on Cherokee, Wagoneer and Truck models with an eight-
cylinder engine. An 10.5-inch (26.7 cm) diameter dia
phragm-type clutch cover is used on six-cylinder CJ.
Scrambler, Cherokee, Wagoneer and Truck models.
Four-Cylinder CJ and Scrambler Models
The clutch assembly used in four-cylinder CJ and
Scrambler models consists of a diaphragm-type clutch
cover and a single dry-disc driven plate. The cover con
sists of a one-piece diaphragm spring with integral re
lease fingers (fig. 2A-2). The driven plate consists of a
steel hub with four integral cushion springs and the
friction material which is riveted to the hub (fig. 2A-3).
The clutch cover and driven plate diameter is 9.250
inches (23.5 cm).
Clutch Hydraulic System—Four-Cylinder CJ and Scrambler
Models
A hydraulic-clutch operating system is used on CJ and
Scrambler models equipped with the 2.5 liter four-cylin
der engine (fig. 2A-4). The system consists of a clutch
General
Service Diagnosis
2A-1
2A-2
cylinder, a slave cylinder, and an interconnecting hy
draulic line. The clutch cylinder is mounted on the dash
panel next to the brake master cylinder. The slave cylin
der is mounted on the clutch housing. The clutch cylin
der is connected directly to the clutch pedal. The slave
cylinder is connected to the throwout lever.
Clutch Hydraulic System Operation
When the clutch pedal is pressed down, hydraulic
fluid from the clutch cylinder flows into the slave cylin
der causing the slave cylinder push rod to extend. Since
the push rod is connected to the throwout lever, the lever
moves the throwout bearing into contact with the clutch
cover release fingers to disengage the clutch.
NOTE: On four-cylinder CJ and Scrambler models
with the clutch hydraulic operating system, the clutch
pedal must be fully depressed before complete clutch
disenqa<)ement will occur.
Clutch Hydraulic Fluid
The hydraulic fluid that operates the clutch hydraulic
mechanism is contained in the clutch cylinder reservoir.
When adding fluid to, or refilling the system after ser
vice operations, use AMC/Jeep brake fluid, or equiva
lent, marked SAE J-1703 or DOT 3 only. Do not use any
type of mineral or paraffin base oils in the system.
These fluids will damage the rubber parts in the clutch
and slave cvlinders.