Engine Mechanical - 3.0L: Piston: Assembly

Lubricate the piston pin and piston bore with SAE 5W-20 motor oil and install the piston pin.

Fig 1: Installing Piston Pin
Courtesy of MAZDA MOTORS CORP.
Install the clips.

Fig 2: Installing Clips
Courtesy of MAZDA MOTORS CORP.
Check the piston ring end gap. Refer to PISTON - RING END GAP .
Lubricate the piston rings with SAE 5W-30 motor oil.
Install the first oil control ring.

Fig 3: Installing First Oil Control Ring
Courtesy of MAZDA MOTORS CORP.
Install the oil control spacer ring.

Fig 4: Installing Oil Control Spacer Ring
Courtesy of MAZDA MOTORS CORP.
Install the second oil control ring.

Fig 5: Installing Second Oil Control Ring
Courtesy of MAZDA MOTORS CORP.
Install the second compression ring.
1. The top of the second compression ring has a "0" on it. Position this side of the ring towards the top of the piston.
  
  Fig 6: Installing Second Compression Ring
  Courtesy of MAZDA MOTORS CORP.
Install the top compression ring.
1. The top compression ring can be installed with either side up.
Fig 7: Installing Top Compression Ring
Courtesy of MAZDA MOTORS CORP.