Cub-cadet Yanmar 3TNV72 User Manual download pdf (Page 143)

ENGINE

6-44 TNV IDI Service Manual

Cylinder Block

11. Remove the bearing inserts (Figure 6-53, (2)).

12. Remove the compression rings

(Figure 6-53, (3)) from the piston using a piston

ring expander.

13. Remove the oil ring (Figure 6-53, (4)) from the

piston using a piston ring expander.

Figure 6-53

14. Remove the circlips (Figure 6-53, (5)) from the

wrist pin.

15. Remove the wrist pin (Figure 6-53, (6)) and

connecting rod (Figure 6-53, (8)) from the

piston (Figure 6-53, (9)).

16. Repeat steps until all pistons are removed and

dissembled.

Removal of Crankshaft

1. Remove the flywheel (Figure 6-54, (1)) from

the crankshaft.

2. Remove the bolts (Figure 6-54, (2)) from the

flywheel housing assembly. Remove the

flywheel housing from the engine.

Figure 6-54

3. Before removing the main bearing caps,

measure the crankshaft end play. Use either of

the following two methods:

• Method A: Install a dial gauge

(Figure 6-55, (1)) on the cylinder block. Move

the crankshaft (Figure 6-55, (2)) in and out to

measure the end play. Record the

measurement.

Figure 6-55

0001705A

(3)

(4)

(6)

(7)

(5)

(2)

(1)

(8)

(9)

(5)

0002188

(3)

(2)

(1)

(4)

(1)

(2)

0001961

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