Removing Oil Pump

Disconnect lines at the oil pump.
1. 1.1. Remove screw on oil return line (vent line). -1-
  
  Fig 1: Identifying Screw On Oil Return Line
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. 1.2. Remove the two screws on the intake manifold and take the intake manifold off the oil pump. -3-
Remove the sprocket cover for the oil pump
1. 2.1. Loosen the top screw -1- using an open-ended wrench until the sprocket cover is released. Remove the two remaining screws. -2 und 3-
  
  Fig 2: Removing Sprocket Cover Mounting Using Open-Ended Wrench
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. 2.2. Pull the sprocket cover down and off. The top hole is open.
  
  Fig 3: Pulling Sprocket Cover Down And Off
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Remove the oil pump drive sprocket.
1. 3.1. Position vibration balancer with screw tightened hand-tight on the crankshaft stub. Push on change-over ratchet.
  
  Fig 4: Tightening Screw On Sprocket
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. 3.2. Loosen screw on sprocket. Use an extension if necessary because the screw is very tight -1- . Counter at the vibration balancer using the change-over ratchet. The loosened screw must not be re-used.
Press off small tensioning rail on the chain -arrow- using a screwdriver. → Remove the sprocket from the pump. Loosen the tensioning rail slowly. The chain remains fitted.

Fig 5: Removing Oil Pump Drive Chain
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Remove oil pump
1. 5.1. Unscrew screws on the oil pump -2- . Hold the oil pump securely.
  
  Fig 6: Identifying Oil Pump Screws
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. 5.2. Carefully loosen the locking hook on the joining socket using a screwdriver, → disconnecting pipe and carefully remove the oil pump under the vent line.
  
  Fig 7: Disconnecting Pipe
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.