Removing Chain TENSIONER

Make sure the vehicle cannot start. To do this, switch off ignition and remove ignition key.

1. Make room for removing the chain tensioner by loosening the wire harness.
   1. 1.1 Open the retaining clip -3-  (-arrow B-  ) and remove the B+ line -4-  (-arrow C-  ).

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   Wire harness on generator

2. Disconnect plug connection for generator.
   1. 2.1 Release plug connection for generator -1-  (-arrow A-  ) and disconnect it -arrow B-  .
   2. 2.2 Pull off plug connection for generator -1-  and the line bracket from the B+ line -arrow C-  .

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   Disconnecting plug connection for generator

   NOTE: NOTIFICATION 
   Incorrect handling of crankshafts 

   • Risk of damage to the timing system 

     → Never turn the crankshaft against the rolling direction or when the chain tensioner is removed.

     → Proceed carefully with your work.

     → Only turn the engine at the crankshaft.

     → Observe general warning notes and working regulations.

   Information 

   • The chain tensioner can be removed in any timing chain position. 
   • The timing chain cannot by dislodged by removing the chain tensioner (screw securing timing chain in place). 
   • The crankshaft and camshafts must not be turned when the chain tensioner is removed. 
3. Carefully press down the B+ line in front of the chain tensioner. Carefully unscrew the chain tensioner. -5-  The chain tensioner is made of aluminium. Check the thread for signs of damage. Clean the thread if there is slight abrasion. Replace sealing ring.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Installation position of chain tensioner in timing-case cover