Cylinder Head Disassembly (I): Notes

CAUTION:

If the camshaft is rotated with the timing chain removed and the piston at the top dead center position, the valve may contact the piston and the engine could be damaged. When rotating the camshaft with the timing chain removed, rotate it after lowering the piston from the top dead center position.
When rotating the camshaft using a wrench on the cast hexagon, the wrench may contact the rocker arm and damage the rocker arm. To prevent damage to the rocker arm when holding the camshaft on the cast hexagon, use a wrench on the rear side of the engine as shown in the figure to secure a clearance between the cam.

Fig 1: Rotating Camshaft Using Wrench On Cast Hexagon

Courtesy of MAZDA MOTORS CORP.

NOTE:

Fig 2: Identifying Camshaft Cast Hexagon Width

Courtesy of MAZDA MOTORS CORP.

Disassemble in the order indicated in the table.

Fig 3: Exploded View Of Cylinder Head (Disassembly Order)
Courtesy of MAZDA MOTORS CORP.