Timing Chain Installation Note

WARNING: This page is about a different car, the 2018 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

Verify that the timing marks and the key are aligned to the position shown in the figure.

Fig 1: Checking Timing Marks And Key Alignment
Courtesy of MAZDA MOTORS CORP.
NOTE:
- The timing mark is not parallel with the upper surface of the cylinder head.
Install the timing chain while aligning the marks on each sprocket and the timing chain as shown in the figure.

Fig 2: Aligning Marks On Timing Chain
Courtesy of MAZDA MOTORS CORP.
Install the chain guide (No. 1).
Tightening torque

8-11 N.m {82-112 kgf.cm, 71-97 in.lbf}
Install the tensioner arm.
Install the chain tensioner.
Tightening torque

8-11 N.m {82-112 kgf.cm, 71-97 in.lbf}
After installing the chain tensioner, remove the installed wire or paper clip, and then apply tension to the timing chain. (Chain tensioner (type A))
- If a new chain tensioner is used, remove the installed stopper.
  
  Fig 3: Removing Stopper From Link Plate
  Courtesy of MAZDA MOTORS CORP.
After installing the timing chain tensioner, remove the installed rod, and then apply tension to the timing chain. (Chain tensioner (type B))
- If a new chain tensioner is used, remove the installed lock pin.
  
  Fig 4: Lock Pin And Chain Tensioner
  Courtesy of MAZDA MOTORS CORP.
Verify that there is no looseness in the timing chain, and re-verify that each sprocket is in the specified location.
Rotate the crankshaft clockwise two turns and inspect the valve timing.

Fig 5: Timing Mark On Cylinder Head Upper Surface
Courtesy of MAZDA MOTORS CORP.
NOTE:
- The timing mark is not parallel with the upper surface of the cylinder head.