Subaru Legacy Service Manual: Engine oil

Oil pump specification

The oil pump cannot be disassembled.Refer to “Chain Cover” for removal and installation procedures. Chain Cover > REMOVAL Chain Cover > INSTALLATION ...

Replacement

CAUTION:If the engine oil is spilt over exhaust pipe or the under cover, wipe it off with cloth to avoid emission of smoke or causing a fire.1. Open the oil filler cap for quick draining of engine oil ...

Other materials:

Disassembly
1. Remove the boot and push rod.2. Apply compressed air through clutch hose attachment hole.NOTE:Face the piston hole down and place a piece of wood underneath to prevent the piston from popping out.3. Separate the piston and piston spring. ...