Removing Oil Pump: Notes

→ Protect components from dirt and contamination.

→ Clean or replace dirty components.

Information 

• Only the new oil pump (without seals), which is used for the 991 and 981 engines, is currently available as a spare part. 
• This can be used for all 9A1 engines in older vehicles and is installed without seals. 
• Replace screw for oil pump gear. 

1. Remove oil pump gear.
   1. 1.1. Position the oil pump gear -1-  by turning it clockwise at the vibration damper so that two bores are parallel to the sealing face.
      Fig 1: Positioning Oil Pump Gear

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   2. 1.2. Position special tool Retaining Device 9791  on the oil pump gear.
      1. Retaining Device 9791
      2. Bolt
         Fig 2: Identifying Special Tool (9791)

         Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   3. 1.3. Loosen internal Torx screw (M8 x 22) -1-  using a long socket-wrench insert (T45) and unscrew it. Replace screw.
      Fig 3: Identifying Oil Pump Gear Screw

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   4. 1.4. Remove special tool, remove the oil pump gear from the driver and leave the sprocket in the timing chain.
2. Remove oil pump.
   1. 2.1. Unscrew six M6 outer Torx screws (E10) → Oil pump  and lift up the oil pump.
      1. Outer Torx screw, M6 x 30
      2. Outer Torx screw, M6 x 95
      3. Oil pressure control valve
      4. Suction tube
      5. Inner Torx countersunk screw, M6 x 25
      Fig 4: Identifying Oil Pump Components

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
3. Remove and dispose of old seals.
   1. 3.1. Replace O-ring -4-  for oil pressure control valve -5-  .
      1. Oil pump
      2. O-ring
      3. Quad seal
      4. O-ring on oil pressure control valve
      5. Oil pressure control valve
         Fig 5: Identifying Oil Pump Seals

         Courtesy of PORSCHE CARS NORTH AMERICA, INC.