Installing Drive Belt

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Drive belt routing (view on removed engine):

Drive belt
Generator pulley
Power-steering pump pulley (plastic)
Air-conditioning compressor pulley
Crankshaft vibration damper
Coolant pump pulley
Belt tensioner tensioning roller

Fig 1: Identifying Drive Belt Routing

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Guide in the drive belt with the flat side between the engine bracket and vibration damper and position it on the grooves.

Fig 2: Identifying Drive Belt On Vibration Damper
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Fit the drive belt onto the other pulleys in accordance with the belt threading course.
1. Drive belt
2. Generator pulley
3. Coolant pump pulley
4. Tensioning roller
5. Hydraulic pump pulley (plastic)
Fig 3: Identifying Drive Belt On Pulley
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
1. 2.1. Fit drive belt on the tensioning roller
Fit drive belt.
1. 3.1. Fit a ring wrench (a/f 30) -2- on the hexagon -1- on the tensioner, turn it clockwise as far as it will go and hold it at that position.
2. 3.2. Slide the drive belt onto the tensioning roller.
3. 3.3. Let the tensioner slide back slowly into tensioning position (anti-clockwise).
  
  Fig 4: Relieving Drive Belt
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Check that all pulleys and the tensioning roller are installed at the correct position.
1. 4.1. To do this, turn the belt tensioner clockwise as far as it will go using the ring wrench -1- and hold it at this position.
2. 4.2. Guide the drive belt clockwise over the pulley -2- for the air conditioning compressor with your hand.
  
  Fig 5: Checking Installation Position Of Drive Belt
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.