863897 Volvo.Penta Sealing ring

(1) Connecting rod. Connecting rods and caps to be marked (by etching only) with the number of the cylinder in which they are used. Connecting rods and caps are to be marked with numbers one through eight on this side of connecting rod in relation to the connecting rod bearing retainer notch.
View A-A(2) Piston crater. Assemble piston and connecting rod with piston crater (2) and connecting rod orientation (1) as shown. Connecting rod and piston group to be installed in engine with piston crater (2) directed toward the engine centerline (both banks). Top And Intermediate Piston Ring
Top Piston Ring
(3) Top piston ring. Install top piston ring (3) with "UP-1" and "CAT" on the top side of the ring.Clearance between ends of top piston rings when installed in a cylinder: 9Y6774 Top Ring-Standard size bore (new) 114.300 mm (4.5000 in) ... 0.572 0.190 mm (.0225 .0075 in)121-4696 Top Ring-Standard size bore (new) 114.300 mm (4.5000 in) ... 0.570 0.19 mm (.0224 .0075 in)121-4697 Top Ring-Standard size bore (new) 114.300 mm (4.5000 in) ... 0.525 0.125 mm (.0207 .0049 in)Increase in clearance between ends of piston ring for each 0.03 mm (.001 in) increase in cylinder bore size ... 0.08 mm (.003 in)Intermediate Piston Ring
(4) Intermediate piston ring. Install the intermediate piston ring (4) with "UP-2" and "CAT" on the top side of the ring.Clearance between ends of intermediate piston rings when installed in a cylinder: 9Y6775 And 123-9760 Intermediate Ring-Standard size bore (new) 114.300 mm (4.5000 in) ... 0.572 0.190 mm (.0225 .0075 in)123-9759 Intermediate Ring-Standard size bore (new) 114.300 mm (4.5000 in) ... 0.780 0.180 mm (.0307 .0071 in)Increase in clearance between ends of piston ring for each 0.03 mm (.001 in) increase in cylinder bore size ... 0.08 mm (.003 in)Oil Control Ring
7E7246 And 6I3188 Oil Control Ring
(5) Oil control ring. Install oil control ring (5) with the gap in the spring 180 45 degrees away from the gap in the ring.Width of groove in piston for piston ring (new) ... 2.806 0.013 mm (.1105 .0005 in)Thickness of piston ring (new) ... 2.756 0.013 mm (.1085 .0005 in)Clearance between piston groove