Opel Frontera UE. Manual - part 1626

7C–4

CLUTCH

Damper Cylinder

A07RS004

In order to reduce the occurrence of noises at the clutch
hydraulic system, the damper cylinder is used in the
clutch hydraulic line between the master cylinder and
slave cylinder.

SECTION

CLUTCH

7C–5

Slave Cylinder

A07RW037

The slave cylinder converts hydraulic energy into
mechanical energy.  Hydraulic fluid supplied by the
master cylinder moves the slave cylinder piston to
actuate the shift fork.  The mechanical energy produced
by the slave cylinder is directly proportional to the
diameters of the master cylinder and the slave cylinder.

Pressure Plate Assembly

A07RW025

The pressure plate assembly consists of the clutch cover,
the pressure plate with diaphragm spring.
Operating the clutch pedal causes the pressure plate to
move in an axial direction to engage and disengage the
clutch.

SECTION

7C–6

CLUTCH

Driven Plate Assembly

A07RW027

The driven plate assembly consists of the plate and the
facing.
The plate consists of the clutch center, the cushioning
plate, and the torsion springs.
The facing is riveted to both sides of the cushioning plate.
The cushioning plate provides a longer service life by
minimizing wear and vibration at the clutch contact
surfaces.

SECTION

CLUTCH

7C–7

Diagnosis

Condition

Possible cause

Correction

Dragging

Air in circuit.

Bleed and check for damage.

Driven plate worn or warped.

Replace.

Clutch fork off the ball stud.

Install correctly and lubricate.

Diaphragm spring weak or tip of
fingers worn.

Replace.

Driven plate sticking on splines.

Clean and free splines and lubricate
with grease.

Pilot bearing worn or damaged.

Replace.

Master cylinder and slave cylinder
seals worn.

Replace.

Slipping

Clutch facing worn.

Replace.

Driven plate friction pads worn or
oilsoaked.

Replace and check for leaks as
needed.

Diaphragm spring weak.

Replace pressure plate.

Pressure plate or flywheel warped.

Replace.

Master cylinder and slave cylinder
seals worn.

Replace as needed.

Chattering

Clutch facing in poor contact or
facing warped.

Replace.

Surface of facing hardened.

Replace.

Driven plate friction pads oil soaked.

Replace and check for leaks.

Damper springs weakened or
broken.

Replace.

Rivets on clutch plate loosened.

Replace.

Pressure plate or flywheel warped.

Replace as needed.

Rattling

Diaphragm spring weak.

Replace the pressure plate.

Clutch fork loose or off the ball stud.

Replace the retaining spring or install
the fork correctly.

Driven plate springs weak or oil in the
damper.

Replace and check for leaks as
needed.

Release bearing noisy with the clutch
engaged

Release bearing binding.

Clean, or replace if damaged, and
lubricate.

Clutch fork off the ball stud or loose
spring tension.

Install correctly, and lubricate.

Linkage return springs weak.

Replace.

Noisy

Release bearing worn or damaged.

Replace.

Clutch fork off the ball stud.

Install correctly and lubricate.

Pilot bearing loose.

Replace.

Pedal stays on the floor when
disengaged

Replace bearing binding.

Free up, or replace, and lubricate.

disengaged

Diaphragm spring weak.

Replace the pressure plate.

Pedal is hard to push

Hydraulic line blocked or crimped.

Clean out or replace.

Master or slave cylinders bindinig.

Repair or replace as needed.

Driven plate worn.

Replace.

Squeaking

Ball stud not lubricated or incorrectly
lubricated.

Lubricate with high temperature
grease.

SECTION