No. 1 Idler Removal Note

WARNING: This page is about a different car, the 2002 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.

Install the crankshaft pulley bolt.
Turn the crankshaft clockwise and align the timing marks. (No. 1 piston is at TDC of the compression stroke.)

Fig 1: Aligning Crankshaft Sprocket Timing Marks
Courtesy of MAZDA MOTORS CORP.
CAUTION:
- When removing the pulley bolt, hold the pulley so that the bolt holes are aligned, otherwise the threads can be damaged.
Remove the No. 1 idler pulley.

Fig 2: Removing Idler Pulley
Courtesy of MAZDA MOTORS CORP.