ARIA

ENGINE

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.

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.