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ENGINE2.2LDICOR
ConnectingRod(Dimensions)
Stage
ConnectingRod sall end
Parent bore diameter (mm)
Bush Outside diameter (mm)
Standard
34H7
34.1+/-0.02
Standard
34.2H7
34.3+/-0.02
Max. permissible circularity & ovality of connecting
0.005 mm
rod small end parent bore
0.008 mm
Connecting rod small end bush inside dia. (to be
Ø 31.020 - Ø 31.033 mm
finished after installation) (Piston pin oiled has thumb
push fit in small end bush)
Max. permissible out of parallelism (bend) between
0.06 mm
connecting rod small end & big end parent bores
measured at a distance of 100 mm from cenre line
of connecting rod big end.
Centre to centre distance between connecting rod
149
+ 0.03
mm
small end & big end parent bores.
Maximum permissible twist of connecting rod
0.1 mm
Connecting rod big end parent bore dia.
Ø 53.69+0.019
Max. permissible taper & ovality of connecting rod
0.008 mm
big end parent bore cylindericity
0.01 mm
Stage
Connecting rod small end
Crank pin journal dia. (mm)
& big end parent bore dia.
With bearing shell (mm)
Standard
50.008, 50.047
50 -0.005,-0.02
Repair 1
49.758, 49.797
49.75 -0.005,-0.02
Repair 2
49.508, 49.547
49.5 -0.005,-0.02
Bearing shells to be selected such that clearance is maintained as
0.011-0.065 mm
Pre tension of connecting rod big end bearing shells
0.060-0.090 mm
Max. permissible difference in weight of connecting rods in one enhine
3 gms
Connecting rod big end axial play
0.1 - 0.35 mm