Cayenne GTS (9PA) V8-4.8L (2008)
Timing chain and chain guide
1 - Threaded peg
2 - Threaded pegs
3 - Guide rail
4 - Tensioning rail
5 - Chain tensioner with sealing ring
6 - Pin (for locking the oil-pump tensioning rail)
A - Direction of travel
Replacing guide and tensioning rails
Removing guide and tensioning rails
Information
If the timing chain has to be removed or replaced, check the guide and tensioning rails as well as the chain pinions for wear and scoring and replace
them if necessary.
Information
The rolling direction of the timing chain must always be the same.
If the timing chain is to be reused, the rolling direction of the timing chain must be marked before it is removed.
1. If you have not already done so, remove upper guide rails (guide pad) between the camshafts -6-.