ARIA

ENGINE 79 8. Finish connecting rod small end bush bore on a connecting rod boring machine. 9. Alternately connecting rod small end bush may be reamed. The end edges to be chamfered / de- burred manually. 10.Install connecting rod bearing caps without bear- ing shells on connecting rod. 11.Tighten connecting rod bearing cap mounting nuts to specified torque 12.Ensure that identification numbers for connecting rod and connecting rod bearing cap are matched and notches for bearing shells are on the same side. 13.Check twist and bend of connecting rod by using new piston pin in connecting rod small end bush. 14.Measure twist and bend of connecting rod with feeler gauge with respect to vertical face of the connecting rod alignment gauge in vertical and horizontal plane at a distance of 50 mm from line joining centers of connecting rod small end and big end bosses. 15.If necessary, straighten connecting rod in cold condition. Since a slight clearance exists between the connecting rod bolts and corresponding con- necting rod bearing cap holes, it is possible that the connecting rod bearing cap once removed may be installed off center, due to which the di- mension of the connecting rod big end parent bore will be different in different directions. If there is a difference noticed in connecting rod big end parent bore dimension, connecting rod bear- ing cap can be centralized by lightly tapping it with mallet in required direction after slightly loos- ening connecting rod bearing cap mounting nuts.