Mazda CX-9 Grand Touring 2009 Manual page 1463

2008 Mazda CX-9 Grand Touring
2008 ENGINE Mechanical (MZI-3.7) - Mazda CX-9
2) on the timing chain. If any timing marks are missing, mark the
timing chain.
When marking the crankshaft sprocket side timing chain, change the
mark color.
When the timing chain is replaced with a new one, mark the new
timing chain at the same positions as the removed timing chain.
Fig. 77: Turning Crankshaft Clockwise
Courtesy of MAZDA MOTORS CORP.
2. Mark the timing chain at the position of each timing sprocket timing mark.
NOTE:
Verify that there are timing marks in two locations on the camshaft
timing chain. If any timing marks are missing, mark the camshaft
timing chain.
If replacing with a new camshaft timing chain, place alignment marks
in the same positions as those prior to the replacement.
Fig. 78: Identifying Timing Chain Marks Location