Clutch System Inspection And Adjustment; Mechanical Clutch Type; Hydraulic Clutch Type - Subaru IMPREZA 2004 Service Manual

PERIODIC MAINTENANCE SERVICES
14.Clutch System
A: INSPECTION AND ADJUSTMENT

1. MECHANICAL CLUTCH TYPE

1) Inspect the free play of clutch pedal by operating
pedal by hand.
If it is out of the specified value, adjust it by turning
wing nut on engine side of clutch cable at release
fork.
Tightening torque
(Adjusting nut on release fork):
4.4 — 7.4 N·m
(0.45 — 0.75 kgf-m, 3.3 — 5.4 ft-lb)
Standard free play A:
10 — 20 mm (0.39 — 0.79 in)
Fork lever free play allowance A:
2 — 4 mm (0.08 — 0.16 in)
A
(1) Full stroke: 25.5 mm (1 in)
2) Pedal-to-floor plate gap in disengaged position.
(1) With the engine idling, pull the parking brake
lever completely.
(2) Slowly depress the clutch pedal while mov-
ing shift lever into reverse.
(3) Stop depressing the clutch pedal when
gearshifting is complete. With the clutch pedal in
this position, measure the distance between the
upper side of pedal pad and the lower end of
front panel (intersection of front panel with floor).
Check that the measured value is within the
specification.
Clutch System
A
PM-00151
(1)
PM-00152
Standard:
80 mm (3.15 in) or more
3) Pedal height
Check that the clutch pedal pad surface is level
with or higher than brake pedal pad surface.

2. HYDRAULIC CLUTCH TYPE

1) Push the release lever to retract the push rod of
the operating cylinder and check if the fluid level in
the clutch reservoir tank rises or not.
NON-TURBO MODEL
(C)
(A) Release lever
(B) Push rod
(C) Operating cylinder
TURBO MODEL
(A) Release lever
(B) Push rod
(C) Operating cylinder
2) If the fluid level rises, pedal free play is correct.
3) If the fluid level does not rise, or the push rod
cannot be retracted, adjust the clutch pedal. <Ref.
to CL-40, Clutch Pedal.>
4) Check the fluid level using the scale on the out-
side of the clutch master cylinder tank (A). If the lev-
el is below "MIN" (B), inspect the clutch master
cylinder, operating cylinder and hydraulic line for
fluid leaks. If fluid leaks are found, repair or replace.
If fluid leaks are not found, add clutch fluid to bring
it up to "MAX" (C) of clutch reservoir tank.
PM-24
(A)
(B)
PM-00075
(C)
(A)
(B)
PM-00101