Subaru 2009 IMPREZA Service Manual page 2175

CLUTCH SYSTEM
9. Clutch Fluid Air Bleeding
A: PROCEDURE
NOTE:
• The illustration below is suitable for every model.
Perform the same procedures for the other models.
• Bleed air from the oil line with help of a co-work-
er.
1) Remove the air intake chamber. (Non-turbo
model) <Ref. to IN(H4SO)-7, REMOVAL, Air Intake
Chamber.>
2) Remove the intercooler. (Turbo model) <Ref. to
IN(H4DOTC)-13, REMOVAL, Intercooler.>
3) Fit one end of a vinyl tube into the air bleeder of
the operating cylinder, and put the other end into a
brake fluid container.
(A)
(B)
(A) Clutch hose
(B) Air bleeder
4) Slowly depress the clutch pedal and keep it de-
pressed. Then open the air bleeder to discharge air
together with the fluid.
Release the air bleeder for 1 or 2 seconds. Next,
with the bleeder closed, slowly release the clutch
pedal.
CAUTION:
Cover the bleeder with cloth to prevent brake
fluid from being splashed on surrounding parts
when loosening the bleeder.
(B)
(A) Operating cylinder
(B) Vinyl tube
Clutch Fluid Air Bleeding
CL-00360
(A)
CL-00357
CL-22
5) Repeat procedure 4), until there are no more air
bubbles in the vinyl tube.
6) Tighten the air bleeder.
Tightening torque:
T: 7.8 N·m (0.8 kgf-m, 5.8 ft-lb)
T
7) After stepping on the clutch pedal, make sure
that there are no leaks evident in the entire clutch
system.
8) After bleeding the air from clutch system, ensure
that the clutch operates properly.
9) Install the air intake chamber. (Non-turbo model)
<Ref. to IN(H4SO)-7, INSTALLATION, Air Intake
Chamber.>
10) Install the intercooler. (Turbo model) <Ref. to
IN(H4DOTC)-13, INSTALLATION, Intercooler.>
CL-00358