ENGINE 89 Fig. 9 Fig. 10 Fig. 11 Fig. 12 4 When cylinders are honed or bored and honed, piston and rings of appropriate size should be used. Piston size is stamped on the piston crown. Specified piston clearance in cylinder bore should be maintained. 5 Install piston rings using piston ring expander Fig. 8 starting from third groove. ‘TOP’ mark on 2nd ring should face piston crown. INSPECTION AND REPAIR OF CONNECTING ROD 1 Inspect small end bush of connecting rod and if necessary remove bush with drift, 2576 5890 02 07. Fig. 11. 2 Check connecting rod small end parent bore wear with internal measuring instrument Fig. 12. 3 If necessary, machine it to next repair size on a suitable boring machine. Ensure that connecting rod big end and small end axis are parallel within specified limits. 4 Install new bush using drift, 2576 5890 02 07. Oil parent bore in connecting rod before pressing bush. Fig. 13. 5 Finish connecting rod small end bush bore on a connecting rod boring machine. Alternatively bush may be reamed. 6 Assemble connecting rod cap without bearing shells and tighten fastening bolts with a torque wrench to specified torque. NOTE : Ensure that identification numbers for connecting rod and cap are matched and notches for bearing shells are on same side.
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