41 486 PL ENGINE P Measure main bearing parent bore dimension. Fig. 89 If main bearing parent bore is slightly more than maximum permissible limits, it is possible to reclaim crank case provided the wear is confined only to main bearing cap. Install new pairs of main bearing shells according to size of crank shaft main bearing journal diameter, ensure the proper fitment of securing lugs. Install main bearing caps with bearing shells in their respective position on crank case. Tighten main bearing cap mounting bolts to specified torque. Measure main bearing bore. Measure pre-tension of main bearing shell with a feeler gauge after loosening main bearing cap mounting bolt on opposite side of bearing shell lug. (This is to be done on a flat surface) Select new pair of thrust washer according to crank shaft 4th main journal width. Cylinder Bore Clean cylinder bores thoroughly. Check cylinder bore dimensions, taper & ovality. Fig. 90 & 91 Fig. 91 Fig. 90 Fig. 89
RkJQdWJsaXNoZXIy MTIwNTUz