Yanmar 6LY3 series Service Manual page 386

SERVICE STANDARDS
Piston Ring
Inspection Item
Ring Groove Width
Ring Width
Top Ring
Side Clearance
Gap
Ring Groove Width
Ring Width
Second Ring
Side Clearance
Gap
Ring Groove Width
Ring Width
Oil Ring
Side Clearance
Gap
14-8
Standard
2. 626-2.646 mm
(0.1033-0.1041 in.)
2.470-2.490 mm
(0.0972-0.0980 in.)
0.136-0.176 mm
(0.0053-0.0069 in.)
0.30-0.50 mm
(0.0118-0.0196 in.)
2.570-2.585 mm
(0.1082-0.1017 in.)
2.470-2.490 mm
(0.0972-0.0980 in.)
0.080-0.115 mm
(0.0031-0.0045 in.)
0.50-0.70 mm
(0.0196-0.0275 in.)
4.010-4.025 mm
(0.1578-0.1584 in.)
3.970-3.990 mm
(0.1562-0.1570 in.)
0.020-0.055 mm
(0.0007-0.0021 in.)
0.25-0.45 mm
(0.0098-0.0177 in.)
© 2007 Yanmar Marine International
Service Standards
Limit Reference Page
2.746 mm
(0.1081 in.)
2.450 mm
(0.0964 in.)
0.250 mm
(0.0098 in.)
1.5 mm
(0.0590 in.)
2.140 mm
(0.0842 in.)
1.950 mm
(0.0767 in.)
0.200 mm
(0.0078 in.)
1.5 mm
(0.0590 in.)
4.130 mm
(0.1625 in.)
3.950 mm
(0.1555 in.)
0.150 mm
(0.0059 in.)
1.5 mm
(0.0590 in.)
6LY3 Service Manual
5-38