1+ Primary timing chain  
2+ Timing chain damper  
3+ Washer faced setscrew  
4+ Timing chain damper  
5+ Chain tensioner  
6+ Pivot plate  
7+ Distance piece  
8+ Support plate  
9+ Washer faced bolt  
10+ Tensioner piston housing  
11+ Washer faced bolt  
12+ Washer faced bolt  
13+ Chain tensioner piston  
14+ Non return valve  
15+ Non return valve O-ring  

The part numbers in the assembly image below relate to the product number in the table. Clicking on the part number will open up the relevant part details.