Clutch Pedal: Adjustment

WARNING: This page is about a different variant/trim than selected.

Turn the lock nut until the full stroke of clutch pedal becomes within the specification.
CAUTION: When adjusting the full stroke of clutch pedal, do not turn the clutch switch.

NOTE: If the lock nut cannot adjust the full stroke of clutch pedal to the specified value, adjust it by turning the master cylinder push rod.

Clutch pedal full stroke A:

STI model

130 - 135 mm (5.12 - 5.31 in)

Except for STI model

135 - 140 mm (5.31 - 5.51 in)

Tightening torque (clutch switch lock nut):

T: 8 N.m (0.8 kgf-m, 5.9 ft-lb)

Fig 1: Identifying Clutch Pedal Full Stroke A
Courtesy of SUBARU OF AMERICA, INC.
If the full stroke is not within the specified value, loosen the clutch switch lock nut to adjust.
Tightening torque:

8 N.m (0.8 kgf-m, 5.9 ft-lb)
Loosen the push rod lock nuts.

Fig 2: Identifying Clevis Pin, Snap Pin, Push Rod And Lock Nut
Courtesy of SUBARU OF AMERICA, INC.
Rotate the push rod to adjust.
1. Make sure that the clutch pedal contacts the clutch switch side when the pedal is released.
2. Make sure that the clutch pedal contacts the clutch pedal bracket stopper when the clutch pedal is at the maximum stroke position.
  
  Fig 3: Rotating Push Rod To Adjust
  Courtesy of SUBARU OF AMERICA, INC.
Turn the push rod to shorten until a clearance is gained on the clutch switch side.

Fig 4: Identifying Clutch Switch And Stopper
Courtesy of SUBARU OF AMERICA, INC.
Turn the push rod to lengthen until clutch pedal contacts the clutch switch.
Turn further in the direction that will shorten the push rod (arrow direction shown in figure) by 270°.

Fig 5: Turning Push Rod
Courtesy of SUBARU OF AMERICA, INC.
Check that the clevis pin moves smoothly by moving it in the left and right directions.
Tighten the push rod lock nut.
Tightening torque (push rod lock nut):

T: 10 N.m (1.0 kgf-m, 7.4 ft-lb)

Fig 6: Identifying Clevis Pin, Snap Pin And Push Rod
Courtesy of SUBARU OF AMERICA, INC.
Depress and release the clutch pedal two or three times to ensure that the clutch pedal and release lever operate smoothly. If the clutch pedal and release lever do not operate smoothly, bleed air from the clutch hydraulic system. < Ref. to CLUTCH FLUID AIR BLEEDING . >
Measure the clutch pedal full stroke length again to ensure that it is within specifications. If it is not within specifications, repeat adjustment procedures again from the beginning.
Clutch pedal full stroke:

STI model

130 - 135 mm (5.12 - 5.31 in)

Except for STI model

135 - 140 mm (5.31 - 5.51 in)
Push the release lever until the operating cylinder push rod retracts. Make sure that the brake fluid level in the reservoir tank increases. If the brake fluid level increases, the hydraulic clutch is properly adjusted. If the brake fluid level does not increase or the push rod does not retract, replace the master cylinder with a new part. < Ref. to MASTER CYLINDER . >

Fig 7: Pushing Release Lever
Courtesy of SUBARU OF AMERICA, INC.
Push the release lever until the operating cylinder push rod retracts. Check that the brake fluid level in the reservoir tank increases.

Fig 8: Identifying Push Rod, Release Lever, Operating Cylinder
Courtesy of SUBARU OF AMERICA, INC.
If the brake fluid level increases, hydraulic clutch play is correct.
If the brake fluid level does not increase or push rod does not retract, readjust the clutch pedal.
Check the brake fluid level using the scale on the outside of reservoir tank. < Ref. to INSPECTION , Clutch Fluid. >