Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Impreza 2001-2002.2004-2007 Approved Subaru Impreza 2004 WRX STi 08. MECHANISM AND FUNCTION 35. MANUAL TRANSMISSION AND DIFFERENTIAL (6MT) 08. Oil Pump

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08. Oil Pump


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                                           OIL PUMP
MANUAL TRANSMISSION AND DIFFERENTIAL


8. Oil Pump
A: CONSTRUCTION
The lubricating oil pump incorporated in the transmission case is of a trochoid type.
The pump consists of an inner rotor having four teeth, outer rotor having five teeth, oil pump cover
and oil pump driven gear, which are all located at the rear of the transmission case.
The pump is driven by the drive gear located on the center differential, so the delivery rate varies
with the speed of the center differential.
There are a pressure regulator valve and pressure relief valve on the delivery side of the pump.


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                                              (7)


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                            (5)
                                                     (1)




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                                                            (4)




                                                                                       MT-00926

     (1) Oil pump cover                                    (5) Transmission case
     (2) Oil pump driven gear                              (6) Pressure regulator valve
     (3) Outer rotor                                       (7) Pressure relief valve
     (4) Inner rotor




                                             6MT-34



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