Mazda MX-3 silhouetteMX-3

Assembly

B2-92prose procedure
Main journal diameter Standard
61.938-61.955mm {2.4385-2.4391 in}
Main journal diameter 0.25mm {0.01 in} undersize
61.688-61.705mm {2.4287-2.4293 in}

Lower cylinder block

  1. 14
    Loosen the lower cylinder block bolts in two or three steps in the order shown.
    Bottom view of the lower cylinder block showing the bolt loosening order with bolts numbered 1 through 24, lines connecting the numbered positions.

Install the lower cylinder block as follows

  1. 1
    Install the upper thrust bearings in the upper cylinder block.
  2. 2
    Apply clean engine oil to the main bearings, thrust bearings, and main journals.
  3. 3
    Install the crankshaft in the upper cylinder block.
  4. 4
    Remove any foreign material, oil, and sealant from the contact surfaces of the upper cylinder block and lower cylinder block.
  5. 5
    Apply a continuous bead of silicone sealant to the contact surface as shown.
    Bottom view of the upper cylinder block showing where to apply silicone sealant. Two 'SEALANT' callouts point to the continuous sealant bead along the contact surface.
  6. 6
    Install the lower cylinder block, lower main bearings, and lower thrust bearings within five minutes of applying the silicone sealant.
    Line drawing of the lower main bearings installed in the lower cylinder block, with the OIL GROOVE callout pointing to the grooved bearing.
  7. 7
    Install the lower cylinder block along with the lower main bearings and lower thrust bearings.
  8. 8
    Apply clean engine oil to the threads and seat faces of the bearing cap bolts.
  9. 9
    Tighten the main bolts A, B and sub bolts C as in step 1-(6) through 1-(10).
  10. 10
    Tighten the lower cylinder block bolts D in the order shown.
    Bottom view of the lower cylinder block showing the D bolt tightening order with bolts numbered 1 through 8 and connecting lines.
lower cylinder block bolts D
19 - 25N·m

Search Manual

Search pages, specs, and procedures