Lower Cylinder Block Assembly Note

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Apply a continuous bead of silicone sealant to the upper cylinder block as indicated in the figure.

Fig 1: Applying Silicone Sealant To Upper Cylinder Block
Courtesy of MAZDA MOTORS CORP.

CAUTION:

Because bolts 1-16 are pliant bolts, they cannot be reused. Replace bolts 1-8 with new bolts and use bolts 9-16 installed during inspection when assembling the lower cylinder block.

Install the lower cylinder block bolts in the order indicated in the figure.
Tightening Torque
1. 3.0-5.0 N.m {30-51 kgf.cm, 27-44 in.lbf}
  
  Fig 2: Identifying Lower Cylinder Block Bolts
  Courtesy of MAZDA MOTORS CORP.
  
  Fig 3: Lower Cylinder Block Bolt Installation/Tightening Sequence
  Courtesy of MAZDA MOTORS CORP.
Push crankshaft forward and then rearward to seat the crankshaft thrust washer.
Tighten the lower cylinder block bolts in the order indicated in the figure in four steps.
1. Bolts 1-8: tighten to 22-28 N.m {2.2-2.9 kgf.m, 16-20 ft.lbf} .
2. Bolts 9-16: tighten to 37-43 N.m {3.7-4.4 kgf.m, 27-31 ft.lbf} .
3. Bolts 1-16: tighten 85°-95° .
4. Bolts 17-22: tighten to 20-30 N.m {2.1-3.0 kgf.m, 15-22 ft.lbf} .
5. Verify that the crankshaft rotates freely.
  
  Fig 4: Lower Cylinder Block Bolt Tightening Sequence
  Courtesy of MAZDA MOTORS CORP.
Assemble rear oil seal with part A of the SST (49 UN01 070) and the SST (49 UN30 3384) .

Fig 5: Assembling Rear Oil Seal With SST
Courtesy of MAZDA MOTORS CORP.
1. Install the studs of the SST (49 UN30 3384) as indicated in the figure.
  
  Fig 6: Installing SST Studs
  Courtesy of MAZDA MOTORS CORP.
2. Apply clean engine oil to the oil seal.
3. Push the oil seal slightly in by hand.
4. Install part A of the SST (49 UN01 070) and compress the oil seal with the nuts of the SST (49 UN30 3384) .
  
  Fig 7: Installing Oil Seal
  Courtesy of MAZDA MOTORS CORP.