Chc h msm s – Cub Cadet Yanmar 3TNV72 User Manual
Page 154

ENGINE
TNV IDI Service Manual
6-55
Cylinder Block
Reassembly of Pistons
1. Select the parts needed to assemble the piston
and connecting rod for one cylinder.
2. If removed, install a new wrist pin bushing
(Figure 6-83, (7)) using a press and the 
appropriate service tool. Be sure to align the oil 
holes.
Figure 6-83
3. Reinstall one circlip (Figure 6-83, (5)) into the
piston. Ensure the circlip is securely seated in 
the groove.
IMPORTANT
The piston and connecting rod must be 
assembled with the correct orientation. 
When correctly assembled, the piston 
identification mark (Figure 6-84, (1)) 
stamped into the top of the piston will be on 
the opposite side of the connecting rod as 
the match marks (Figure 6-84, (3)) 
stamped into the connecting rod and 
connecting rod cap. When reinstalled in the 
cylinder, the embossed mark 
(Figure 6-84, (2)) cast into the beam of 
connecting rod will face the flywheel end of 
the engine.
Note: The actual appearance of the match
marks will vary but they will always be in 
the same locations.
Figure 6-84
4. Place the connecting rod into the piston. The
match marks (Figure 6-85, (4)) on the 
connecting rod and cap must be on the 
opposite side as the piston identification mark 
(Figure 6-85, (2)) on the top of the piston.
0001705A
(3)
(4)
(6)
(7)
(5)
(2)
(1)
(8)
(9)
(5)
CHC
H
MSM
S
(1)
0002464
0002090
E106 R
(2)
80 80
0002089
(3)
TNV_IDI_ServiceManual_(3TNV72 for YN only).book 55 ページ 2007年11月29日 木曜日 午後2時58分
