Piston Ring; Connecting Rod - Yanmar 3TNV88F Service Manual

ENGINE

Piston Ring

Inspection item
Top ring
Second ring
Oil ring

Connecting Rod

■ Connecting rod small end
Inspection item
Wrist pin bushing inside diameter
Wrist pin outside diameter
Oil clearance
■ Connecting rod big end
Inspection item
Side clearance
Note: See Special Torque Chart on page 6-10 for other specifications.
6-8
Ring groove 0.0811 - 0.0817 in.
width (2.060 - 2.075 mm)
0.0776 - 0.0783 in.
Ring width
(1.970 - 1.990 mm)
0.0028 - 0.0041 in.
Side clearance
(0.070 - 0.105 mm)
0.0079 - 0.157 in.
End gap
(0.200 -0.400 mm)
Ring groove 0.0797 - 0.0803 in.
Width (2.025 - 2.040 mm)
0.0776 - 0.0783 in.
Ring width
(1.970 - 1.990 mm)
0.0014 - 0.0028 in.
Side clearance
(0.035 - 0.070 mm)
0.0079 - 0.0157 in.
End gap
(0.200 - 0.400 mm)
Ring groove 0.1581 - 0.1587 in.
width (4.015 - 4.030 mm)
0.1563 - 0.1571 in.
Ring width
(3.970 - 3.990 mm)
0.0010 - 0.0024 in.
Side clearance
(0.025 - 0.060 mm)
0.0079 - 0.0157 in.
End gap
(0.200 - 0.400 mm)
1.0234 - 1.0251 in.
(26.025 - 26.038 mm)
1.0234 - 1.0236 in.
(25.995 - 26.000 mm)
0.0010 - 0.0017 in.
(0.025 - 0.043 mm)
0.0079 - 0.0157 in.
(0.20 - 0.40 mm)
Crankshaft and Piston Specifications
Standard Limit
0.0768 in.
(1.950 mm)
0.0193 in.
(0.490 mm)
0.0843 in.
(2.140 mm)
0.0768 in.
(1.950 mm)
0.0075 in.
(0.190 mm)
0.0193 in.
(0.490 mm)
0.1626 in.
(4.130 mm)
0.1555 in.
(3.950 mm)
0.0071 in.
(0.180 mm)
0.0193 in.
(0.490 mm)
Standard Limit
1.0263 in.
(26.068 mm)
1.0223 in.
(25.967 mm)
0.0040 in.
(0.101 mm)
Standard Limit
3TNV88F Service Manual
Reference page
–
–
See Inspection of pistons,
piston rings and wrist pin
on page 6-41.
Reference page
See Inspection of
connecting rod on
page 6-43.
Reference page
See Inspection of
– connecting rod on
page 6-43.