Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Impreza 2001-2002.2004-2007 Approved Subaru Impreza 2006-07 Mechanism and Function CL Clutch

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CL Clutch


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CLUTCH
                              CLUTCH
CLUTCH


A: NON-TURBO MODELS

                               (1)




                                       (2)
                  (7)



                                             (3)




            (8)




            (5)




                        (6)   (4)



                                                   CL-00347




                               CL-4
                         CLUTCH
                                                     CLUTCH


(1) Operating cylinder           (5) Main shaft
(2) Release lever                (6) Clutch disc
(3) Release bearing              (7) Flywheel
(4) Clutch cover                 (8) Pilot bearing




                          CL-5
                                     CLUTCH
CLUTCH


B: TURBO MODELS

                                               (1)




                                                                  (2)
                     (9)



                                                                   (3)


              (8)




             (7)




                                                                  (4)




              (6)




               (5)




                                                                  CL-00263



  (1) Operating cylinder   (4) Release bearing       (7) Primary flywheel
  (2) Release lever        (5) Main shaft            (8) Clutch disc
  (3) Clutch cover         (6) Pilot bearing         (9) Secondary flywheel


                                         CL-6
                                               CLUTCH
                                                                                          CLUTCH


C: CLUTCH CONTROL SYSTEM
 Non-turbo models


                       (2)

                                   (3)

   (1)

                                         (4)




                                                            (6)
                                                                           (5)




                                                                                    CL-00348



   (1) Clutch disc                                     (4) Release bearing
   (2) Operating cylinder                              (5) Clutch master cylinder
   (3) Release lever                                   (6) Damper

 Turbo models


                     (1)


                             (2)



                              (3)




                                                            (5)

                                   (4)
                                                                     (6)




                                                                                    CL-00265



   (1) Operating cylinder                              (4) Release bearing
   (2) Release lever                                   (5) Damper
   (3) Clutch disc                                     (6) Clutch master cylinder



                                                CL-7
1. NON-TURBO MODELS
The flywheel is directly connected to the crankshaft. The mass of the flywheel absorbs the fluctua-
tions in crankshaft rotation, and the flywheel transmits the engine torque to the clutch disc.

2. TURBO MODELS
  The flywheel is of a dual mass type, which consists of a primary flywheel, damper spring, ring
gear, planetary gears, and a secondary flywheel.
  The damper spring is attached to the periphery of the primary flywheel.
  The engine power flows from the primary flywheel through the damper spring, ring gear and plan-
etary gears to the secondary flywheel, and then is transmitted to the transmission via the clutch.
Torque fluctuation in this power train is dampened by lowering the rigidity of the power train using a
two piece flywheel with a damper spring, ring gear and planetary gears in between, which helps
reduce vibration and noise from the power unit.




                                               CL-8
                             FLYWHEEL
                                                                                   CLUTCH


B: CROSS SECTIONAL VIEW AND TORQUE FLOW
 Turbo models

                                                                       (1)

           (6)


                             (B)
                                  (1)




                            (5)
         (5)




                            (2)
         (4)

   (3)




 (A)                                           (4)
                                                                             (6)




                                                                             CL-00266



   (1) Secondary flywheel                       (5) Damper spring
   (2) Ring gear                                (6) Primary flywheel
   (3) Crankshaft                              (A) Input
   (4) Planetary gear                          (B) Output




                                        CL-9
  The hydraulic clutch pedal is connected to the master cylinder via a rod.
  The clutch pedal and brake pedal are mounted on the same bracket.
  The clutch pedal has a mechanism that reduces (assists) the force required to depress the clutch
pedal and reduce the initial pedal depressing force.
  A starter interlock mechanism is provided to prevent the engine from starting unless the clutch
pedal is pressed.




                                                                              (4)


                                                                                                     (5)


                                                                       (3)




                                                 (1)                    (2)

                                 (6)




                                                                                                      CL-00272



     (1) Clutch pedal                                  (4) Rod
     (2) Brake pedal                                   (5) Lever
     (3) Brake and clutch pedal bracket                (6) Initial pedal effort reducing mechanism




                                             CL-10
                             HYDRAULIC CLUTCH PEDAL SYSTEM
                                                                                                 CLUTCH


B: OPERATION
1. STARTER INTERLOCK MECHANISM
When the clutch pedal is fully depressed, the stopper on the pedal pushes the clutch switch pushrod
inwards.
When the pushrod is pressed in, the switch turns ON and connects the ignition switch to the starter
circuit enabling engine start.


    (A)                                                (B)                  (3)
                             (2)     (4)
                    (3)                      (1)                                  (2)   (4)
                                                                                                   (1)




                                                                                              CL-00138



     (A) When clutch switch is OFF                    (B) When clutch switch is ON
     (1) Clutch switch                                (3) Clutch pedal
     (2) Stopper                                      (4) Pushrod




                                             CL-11
                          HYDRAULIC CLUTCH PEDAL SYSTEM
CLUTCH


 Schematic drawings

                                           (2)
                                                             (3)



                                 (1)




                                                                          (4)




                                                                     CL-00137



    (1) Ignition switch                          (3) Clutch switch
    (2) Starter relay                            (4) Starter motor




                                       CL-12



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