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Home >> Porsche >> 2016 >> 911 Turbo, 2D Convertible >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 13 - Engine - CRANKGEAR, Pistons -- 911 CARRERA (991) >> WM 137819 Removing And Installing Drive Belt (Except CARRERA "Edition", CARRERA Cabriolet "Edition", CARRERA 4 "Edition", CARRERA 4 Cabriolet "Edition", Gt3, Gt3 RS) >> Removing Drive Belt

Removing Drive Belt

Drive belt routing: 

Fig 1: Drive Belt Routing Diagram (Engine Removed)
G09990636Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  1. Drive belt
  2. Generator pulley
  3. PDCC pump pulley/deflection roller
  4. Air-conditioning compressor pulley
  5. Crankshaft vibration balancer
  6. Coolant pump pulley
  7. Belt tensioner tensioning roller
  1. Slacken the drive belt.
    WARNING: Do not remove the drive belt when it is warm!
    • Risk of damage or deformation!

    → Only remove the drive belt when it is cold.

    Information 

    • Mark running direction of drive belt with a colored pen. 
    • Even minor damage means that the drive belt must be replaced (even if the maintenance interval has not expired). 
    • If the drive belt has to be replaced (change interval), it can be cut to facilitate removal. 
    1. 1.1. Fit a ring wrench (a/f 30) -2-  on the hexagon on the tensioner -3-  , turn it clockwise as far as it will go and hold it at that position.
    2. 1.2. Remove the drive belt -1-  from the pulley on the generator.
    3. 1.3. Carefully allow the tensioning roller to slide back to its original position.
    4. Fig 2: Removing Tension From Drive Belt
      G09990637Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  2. Remove special screw (M10 x 130) -1-  through the bore on the rear-end carrier.
    Fig 3: Identifying Engine Carrier And Spacer Sleeve Screw
    G09990638Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    1. 2.1. Pull spacer sleeve -2-  up to the right and remove it. Press the engine carrier back slightly if necessary.
  3. Slide the drive belt (flat side) up past the coolant pump pulley -arrow-  .
    Fig 4: Locating Drive Belt On Coolant Pump Pulley
    G09990639Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  4. Turn the drive belt -1-  90 degrees, guide the flat side past the vibration balancer and remove it.
    Fig 5: Identifying Vibration Balancer Drive Belt
    G09990640Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  5. Check pulleys for damage.

    Information 

    • Check for foreign objects in the grooves of the pulley.