4. Tighten main bearing cap mounting bolts to specified torque 5. Check crank case main bearing parent bore dimensions. 6. Install new pairs of main bearing shells according to size of crank shaft main bearing journal diameter, making sure that securing lugs of bearing shells are properly seated in grooves of crank case and main bearing caps. 7. Install main bearing caps with bearing shells in their respective position on crank case. Tighten main bearing cap mounting bolts in specified sequence to specified torque. Measure main bearing bore. 8. If main bearing parent bore dimensions are within specified limits, proper main bearing bore dimension is automatically achieved. 9. Loosen one of the main bearing cap mounting bolts. Now using a feeler gauge measure the pretension gap of main bearing shell. As the main bearing caps are guided, the measurement has to be done on a flat surface and not on cylinder block. Main bearing shells are precision finished and 10. should not be bored or scrapped. Select new pair of thrust washer according to 11. crank shaft 4th main journal width. Pretension Gap: 0.06 to 0.09mm. 12. Diesel Engine Ph-2 (CAFÉ) 164
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