2000-2010 Subaru Outback Service & Repair Manual
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OIL PUMP
Automatic Transmission
AT-2
1. Oil Pump
A: CONSTRUCTION
The pump consists of a prachoid rotor pair, a housing and a cover. The inner rotor has nine teeth
and the outer rotor has ten teeth.
B3H0888A
(1) Oil pump housing (4) Gasket (7) Oil pump cover
(2) Hose (5) Inner rotor (8) Seal ring
(3) Nipple (6) Outer rotor (9) Thrust bearing
B: FUNCTION
D The pump draws automatic transmission fluid (ATF) from the oil pan through the oil strainer lo-
cated under the hydraulic control valve assembly. The ATF then flows through a passage in the
transmission case, and after passing through the oil pump housing and oil pump cover, it enters
the suction port.
D As the inner rotor rotates, the outer rotor also rotates. This motion causes the ATF to be sucked
up through the suction port and discharged from the discharged port.
D The discharged ATF flows through a passage in the oil pump cover and then a passage in the
oil pump housing. It then goes through a passage in the transmission case to the pressure regula-
tor valve in the control valve assembly, from which the ATF is directed to various clutches, brakes,
and torque converter lock-up clutch for acting as hydraulic fluid and lubricating oil. Part of the ATF
also flows, directly and after passing through the regulator valve, to the manual valve, from where
it is distributed to the circuit corresponding to the range selected by the selector lever.
D As engine speed increases, the delivery rate of the oil pump also increases.
OIL PUMP
Automatic Transmission
AT-3
B3H1842A
(1) To torque converter regulator valve (8) Oil pump housing
(2) To manual valve (9) Outer rotor
(3) From reverse clutch (10) Inner rotor
(4) From pressure modifier valve (11) Suction port
(5) Pressure regulator valve (12) Oil strainer
(6) To manual valve (13) Oil pan
(7) Delivery port (14) Line pressure
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The Subaru Outback 2000-2010 Factory Service Repair Manual is a comprehensive guide for maintaining and repairing your Subaru Outback model from the years 2000 to 2010. It is designed for use by professional technicians and experienced DIY enthusiasts, making it a vital resource for anyone looking to keep their Subaru Outback in optimal condition.
- Covers model years from 2000 to 2010
- Includes detailed step-by-step instructions for all repairs, maintenance tasks, and troubleshooting
- Provides comprehensive diagrams, illustrations, and specifications to aid in the repair process
- Covers all aspects of the vehicle, including the engine, transmission, electrical system, suspension, and more
- Contains valuable information on routine maintenance procedures, such as oil changes, tire rotations, and brake inspections
- Provides recommended service schedules to ensure your Subaru Outback continues to perform at its best
- Offers valuable tips and tricks from professional technicians to make repairs easier and more efficient
Whether you are a professional mechanic or a Subaru Outback owner who loves to work on their vehicle, the Subaru Outback 2000-2010 Factory Service Repair Manual is a must-have resource. With its comprehensive coverage and detailed instructions, this manual will help you tackle any repair or maintenance task with confidence.
