Yanmar 3YM30, Service Manual

Page: 227 / 231

13. Service standards
206R1
(5) Connecting rod
1) Rod big end
2) Rod small end
3YM20/2YM15 mm
Inspection item Standard Limit
Reference
page
Top ring Groove width 1.550-1.570 -
5.3.3(1)
Ring width 1.470-1.490 1.450
Side clearance 0.060-0.100 -
Ring gap 0.15-0.30 0.390
Second ring Groove width 1.540-1.560 1.660
Ring width 1.470-1.490 1.450
Side clearance 0.050-0.090 0.210
Ring gap 0.18-0.33 0.420
Oil ring Groove width 3.010-3.030 3.130
Ring width 2.970-3.010 2.950
Side clearance 0.020-0.060 0.180
Ring gap 0.15-0.35 0.44
mm
Inspection item Standard Limit
Reference
page
Side clearance 0.20-0.40 0.55 5.4.1(2)
mm
Item Standard Limit
Reference
page
Bushing inside diameter 22.025-22.038 22.068
5.4.3(1) Pin outside diameter 21.991-22.000 21.963
Clearance 0.025-0.047 0.105