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Home >> Mazda >> 2020 >> 3 Base, 4D Hatchback, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Mechanical System (VIN L)) >> Timing Chain Removal/Installation >> Timing Chain Installation Note
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Timing Chain Installation Note

WARNING: This page is about a different variant/trim than selected.
  1. Verify that the timing marks and the key are aligned to the position shown in the figure.
    G13174385Courtesy of MAZDA MOTORS CORP.
    NOTE:
    • The timing mark of SKYACTIV-G 2.5 is not parallel with the upper surface of the cylinder head.
  2. Install the timing chain while aligning the marks on each sprocket and the timing chain as shown in the figure.

    SKYACTIV-G 2.0 

    G13174406Courtesy of MAZDA MOTORS CORP.

    SKYACTIV-G 2.5 

    G13174407Courtesy of MAZDA MOTORS CORP.
  3. Install the chain guide (No. 1).
  4. Install the tensioner arm.
  5. Install the chain tensioner.
  6. After installing the chain tensioner, remove the installed wire or paper clip, and then apply tension to the timing chain.
    • If a new chain tensioner is used, remove the installed stopper.
    G13174408Courtesy of MAZDA MOTORS CORP.
  7. Verify that there is no looseness in the timing chain, and re-verify that each sprocket is in the specified location.
  8. Rotate the crankshaft clockwise two turns and inspect the valve timing.
    G13174409Courtesy of MAZDA MOTORS CORP.
    NOTE:
    • The timing mark of SKYACTIV-G 2.5 is not parallel with the upper surface of the cylinder head.