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ENGINE
70
ASSEMBLY CLEARANCE
Connecting rod clearance (Big End)
0.013 TO 0.067 mm
Connecting rod Axial play (Big End)
0.1mm TO 0.35mm
Connecting rod small end bush clearance
0.020 to 0.039
Camshaft Bearing Clearance
0.02mm TO 0.062mm
Camshaft bearing axial play
0.18mm TO 0.25mm
Valve Stem Clearance (Inlet)
0.02mm TO 0.046mm
Valve stem Clearance (Exhaust)
0.040mm TO 0.066mm
Piston Clearance on skirt (Bore to piston thrust side)
0.032mm TO 0.042mm
Main bearing clearance
0.026mm To 0.085mm
Camshaft to roller finger follower clearance, inlet
0
Camshaft to roller finger follower clearance, exhaust
0
PISTON & PISTON BORE SIZES
Stage
Grade
Cylinder bore dia. mm
Piston stamped dia. mm
Standard
A
84.995/85.005
84.921/84.931
B
85.005/85.015
84.931/84.941
C
85.015/85.025
84.941/84.951
Repair I
A
85.095/85.105
85.021/85.031
B
85.105/85.115
85.031/85.041
C
85.115/85.125
85.041/85.051
Repair II
A
85.195/85.205
85.121/85.131
B
85.205/85.215
85.131/85.141
C
85.215/85.225
85.141/85.151
Piston to bore
clearance(mm)
0.084-0.064
Weight variation in each set of 4 piston to be within 1.5gm
PISTON RINGS
Type of ring
Rings
Axial clearance
Butt clearance in cylinder bore (mm)
1st Compression Ring 2.5(Nominal)
0.25 to 0.40
2nd Compression Ring 1.99/1.97
0.04/0.08
0.4/0.6
3rd Oil Control Ring
2.99/2.97
0.03/0.07
0.25/0.45