Oil Pump: Disassembly

NOTE: Oil pump for 3.0L MODEL cannot be disassembled. If the oil pump is malfunctioning, replace the oil pump as an assembly.

Using ST, place oil pump in a vise and remove four bolts which secure rear cover.
ST 34199AE020 ATTACHMENT

Fig 1: Placing Oil Pump In Vise & Removing Bolts
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Remove pressure plate.

Fig 2: Removing Pressure Plate
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Using a slot-type screwdriver, pry retaining ring off.
CAUTION: Do not remove cam ring, rotor, etc.

Fig 3: Prying Retaining Ring Off Using Slot-Type Screwdriver
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Install pressure plate.
Temporarily install rear cover to front casing.
Remove oil pump pulley.

Fig 4: Removing Oil Pump Pulley
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Place oil pump in a vise.
CAUTION: Do not place oil pump directly in the vise, use soft pads and hold oil pump lightly to protect the pump.
Pry oil seal off using a slot-type screwdriver.
CAUTION: Be careful not to scratch inner surface of casing.

Fig 5: Prying Oil Seal Off Using Screwdriver
Courtesy of SUBARU OF AMERICA, INC.