Removing Chain TENSIONER

Information 

The chain tensioner piston is oil-damped and can only be pressed back slowly and with constant pressure.

NOTIFICATION 

Incorrect handling of crankshafts 

• Risk of damage to the timing system 
  1. → Never turn the crankshaft against the rolling direction or when the chain tensioner is removed.
  2. → Proceed carefully with your work.
  3. → Only turn the engine at the crankshaft.
  4. → Observe general warning notes and working regulations.

1. Turn the crankshaft using T40263 - special wrench, a/f 21  and T40314 - adapter  until the vibration damper is aligned with the BDC marking  on the corresponding marking on the engine and the markings -1-  on the camshaft timing gears are offset by 180° with respect to the relevant marking -Arrows-  on the camshaft housing.

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Position of camshaft timing gears - right cylinder bank

2. Remove chain tensioner -1-  .
   1. 2.1  Press the chain tensioner piston -1-  back slowly as far as it will go by applying constant pressure using a suitable tool and then lock it using T03006 - locking pin-3-  .
   2. 2.2  Unscrew screws -2-  and remove chain tensioner -1-  .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Chain tensioner