Mazda CX-9 Grand Touring 2009 Manual page 1428

Fig. 20: Locating Camshaft Timing Chain Mark (LH)
Courtesy of MAZDA MOTORS CORP.
RH
4. Remove the timing chain in the following order.
1. Chain tensioner
2. Timing chain
3. Tensioner arm
4. Chain guide
2008 Mazda CX-9 Grand Touring
2008 ENGINE Mechanical (MZI-3.7) - Mazda CX-9