Suzuki DF2.5 Service Manual page 13

1·12 GENERAL INFORMATION
Item Unit
Data
DF2.5
CYLINDER/PISTON/PISTON RING
Cylinder distortion Limit
mm (in) 0.05 (0.002)
Piston to cylinder
STD
mm (in)
0.018- 0.033 (0.0007- 0.0013)
clearance
Limit mm (in) 0.100 (0.0039)
Cylinder bore
STD
mm (in) 48.000- 48.015 (1 .8898- 1.8904)
Cylinder measuring
mm (in) 20 (0.8) from cylinder top surface
position
Piston skirt
STD
mm (in) 47.975-47.990 (1 .8888- 1.8894)
diameter
Piston measuring position mm (in) 5 (0.2) from piston skirt end
Cylinder bore wear Limit mm (in) 0.100 (0.0039)
Piston ring 1st,
STD
mm (in)
0.15 - 0.35 (0.006 - 0.014)
end gap
2nd Limit mm (in) 0.50 (0.020)
Piston ring
1st
STD
mm (in) Approx. 6.1 (0.24)
free end gap
Limit mm (in) 4.9 (0.19)
2nd
STD
mm (in) Approx. 5.7 (0.22)
Limit mm (in) 4.6 (0.18)
Piston ring to
1st,
STD
mm (in) 0.020- 0.060 (0.0008 - 0.0024)
groove
clearance
2nd Limit mm (in)
0.120 (0.0047)
Piston ring 1st,
STD
mm (in) 1.21 - 1.23 (0.048- 0.049)
groove width 2nd
Oil
STD
mm (in) 1.51 - 1.53 (0.059- 0.060)
Piston ring 1st,
STD
mm (in) 1.17-1.19 (0.046-0.047)
thickness 2nd
Pin clearance in
STD
mm (in) 0.002 - 0.013 (0.0001 - 0.0005)
piston pin hole
Limit mm (in) 0.040 (0.0016)
Piston pin outside
STD
mm (in) 11.995- 12.000 (0.4722- 0.4724)
diameter
Limit
mm (in) 11.980 (0.4717)
Piston pin hole
STD
mm (in) 12.002- 12.008 (0.4725- 0.4728)
diameter
Limit
mm (in) 12.030 (0.4736)
Pin clearance in
STD
mm (in) 0.006- 0 .019 (0.0002 - 0.0007)
conrod small end
Limit mm (in) 0.050 (0.0020)