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Home >> Mazda >> 2024 >> CX-90 Turbo Select >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Mechanical (VIN A) (6 Of 6)) >> Timing Chain Removal/Installation [PYUL] >> Remove Chain Tensioner No. 1 >> Bolt removal note

Bolt removal note

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  1. Rotate the crankshaft clockwise and align the positions of the timing mark and the key to set cylinder No. 1 to top dead center (TDC).
    G16701976Courtesy of MAZDA MOTORS CORP.
    SYMBOL AND CONTENT DESCRIPTION

    Symbol Content
    1 Cylinder head top surface
    2 Pin
    3 Timing mark
    4 Key
  2. While moving the exhaust camshaft back and forth in the direction of the arrows using a wrench on the hexagon part, press down the link plate of the chain tensioner with a precision screwdriver to unlock the plunger.
    G16699662Courtesy of MAZDA MOTORS CORP.
    SYMBOL AND CONTENT DESCRIPTION

    Symbol Content
    1 Link plate
    2 Plunger
  3. While holding down the link plate, slowly push the plunger back in the direction shown in the figure below.
    G16699663Courtesy of MAZDA MOTORS CORP.
  4. Remove the screwdriver from the link plate with the plunger still pushed down.
  5. Relieve some of the force from the plunger and move it back and forth 2-3 mm {0.08-0.11 in}.
  6. Insert a wire or paper clip with the approx. diameter of 1.5 mm {0.59 in} into the tensioner body at the point where the hole in the link plate overlaps the hole in the tensioner body to secure the link plate and lock the plunger.
    G16699664Courtesy of MAZDA MOTORS CORP.
    SYMBOL AND CONTENT DESCRIPTION

    Symbol Content
    1 Stopper
    2 Link plate
  7. Remove the bolts.
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