Engines Iveco C10,C13, Cursor 10, Cursor 13. Manual - part 64

 

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Engines Iveco C10,C13, Cursor 10, Cursor 13. Manual - part 64

 

 

Selecting the main bearing shells (Journals with nominal diameter)

After reading off the data, for each of the main journals, on the crankcase and crankshaft, you choose the type of bearing shells
to use according to the following table:

STD.

1

2

3

1

2

3

green

green

red

red

red

red

green

green

green

green

red

red

green

green

green

green

green

green

Figure 27

20

SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS

F3B CURSOR ENGINES

Base - May 2007

green/black

SELECTING THE MAIN BEARING SHELLS (GROUND JOURNALS)
If the journals have been ground, the procedure described so far cannot be applied.
In this case, it is necessary to check that the new diameter of the journals is as shown in the table and to mount the only type
of bearing shell envisaged for the relevant undersizing.

-0.127

1

2

3

99.843
99.852

green/black

green/black

green/black

green/black

green/black

green/black

red/black

red/black

green/black

green/black

green/black

red/black

red/black

red/black

red/black

green/black

green/black

99.853
99.862

99.863
99.873

1

2

3

red/black =

3.173 to 3183 mm

green/black =

3.184 to 3.193 mm

-0.254

1

2

3

99.726
99.746

red

red

red

red

red

red

red =

3.237 to 3.247 mm

-0.508

1

2

3

99.468
99.508

red

red

red

red

red

red

red =

3.364 to 3.374 mm

Figure 28

SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS

21

F3B CURSOR ENGINES

Figure 29

SELECTING THE BIG END BEARING SHELLS
(JOURNALS WITH NOMINAL DIAMETER)
There are three markings on the body of the connecting rod
in the position indicated as ”A”:

Letter indicating the class of weight:

A

=

4756 to 4795 g.

B

=

4796 to 4835 g.

C

=

4830 to 4875 g.

Number indicating the selection of the diameter of the
big end bearing seat:

1

=

94.000 to 94.010 mm

2

=

94.011 to 94.020 mm

3

=

94.021 to 94.030 mm

Numbers identifying the cap-connecting rod coupling.

1

2

3

The number, indicating the class of diameter of the bearing
shell seat may be 1, 2 o 3.

Determine the type of big end bearing to fit on each journal
by following the indications in the table (Figure 30).

47557

VIEW FROM “A”

STD.

1

2

3

1

2

3

green

green

red

red

red

red

red

red

green

green

green

green

green

green

green

green

green

green

CLASS

Figure 30

22

SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS

F3B CURSOR ENGINES

Base - May 2007

Figure 31

green/black

Selecting big end bearing shells (ground journals)
If the journals have been ground, the procedure described so far cannot be applied.
In this case, it is necessary to check (for each of the undersizings) which field of tolerance includes the new diameter of the
crankpins and to mount the bearing shells identified with the relevant table.

-0.127

1

2

3

89.843
89.852

green/black

green/black

green/black

green/black

green/black

green/black

red/black

red/black

green/black

green/black

green/black

red/black

red/black

red/black

red/black

green/black

green/black

89.853
89.862

89.863
89.873

1

2

3

red/black =

2.028 to 2.038 mm

green/black =

2.039 to 2.048 mm

-0.254

1

2

3

89.726
89.735

red

green

green

red

green

green

red

=

2.092 to 2.102 mm

green =

2.103 to 2.112 mm

-0.508

1

2

3

89.472
89.481

red

green

green

red

green

green

red

red

green

red

red

green

89.482
89.492

red

red

green

red

red

green

red

=

2.219 to 2.229 mm

green =

2.230 to 2.239 mm

89.736
89.746

SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS

23

F3B CURSOR ENGINES

 

 

 

 

 

 

 

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