Timing Chain Installation Note

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

Courtesy of MAZDA MOTORS CORP.
NOTE:
- The timing mark of SKYACTIV-G 2.5T is not parallel with the upper surface of the cylinder head.
- If the timing marks and key position have deviated, align them to the positions shown in the figure.
Install the timing chain while aligning the marks on the timing chain as shown in the figure.

Courtesy of MAZDA MOTORS CORP.
NOTE:
- A new timing chain has one alignment mark (yellow) on the timing chain. The position of the alignment mark differs depending on the combination of the crankshaft sprocket and the timing chain.
- When installing the timing chain, install it at the position of the alignment mark indicating the combination of any type A, B, or C.
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.
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.
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.

Courtesy of MAZDA MOTORS CORP.
NOTE:
- The timing mark of SKYACTIV-G 2.5T is not parallel with the upper surface of the cylinder head.