Oil Pan Installation Note

When replacing the oil pan, install the short-cord and a new engine oil level sensor. (Refer to ENGINE OIL LEVEL SENSOR REMOVAL/INSTALLATION .)
Completely clean and remove any oil, dirt, sealant or other foreign matter that may be adhering to the cylinder block and oil pan.
When reusing the oil pan installation bolts, clean any old sealant from the bolts.
CAUTION:
1. Apply the silicon sealant in a single, unbroken line around the whole perimeter.
2. To prevent silicone sealant from hardening, adhere the oil pan to the cylinder block within 10 min after silicone sealant is applied. Tighten the installation bolts completely soon after adhering.
3. Using bolts with the old silicone sealant adhering could cause cracks in the cylinder block.
Fig 1: Applying Silicon Sealant Around Oil Pan Perimeter
Courtesy of MAZDA MOTORS CORP.
Apply silicone sealant (TB1217D or equivalent) to the oil pan along the inside of the bolt holes as shown in the figure.

Fig 2: Identifying Oil Pan Silicone Sealant Thickness Dimension
Courtesy of MAZDA MOTORS CORP.

Thickness
1. 3.0-7.0 mm {0.12-0.27 in}
Install the oil pan using the following procedure.
1. Install the oil pan to the cylinder block.
2. Temporarily tighten the two bolts shown in the figure.
  
  Fig 3: Identifying Oil Pan Bolts
  Courtesy of MAZDA MOTORS CORP.
3. Tighten the bolts in the order shown in the figure.
  
  Fig 4: Oil Pan Bolts Tightening Sequence
  Courtesy of MAZDA MOTORS CORP.
  
  Tightening torque
  1. 8-11 N. {82-112 kgf., 71-97 in.lbf}