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

Page 154

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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

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