Scania 16 litre engine. Work Description — part 19

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73

Connecting rod

Checks

Tools

Connecting rods and bearing caps marked 1 up
to and including 8.

Check the connecting rods using tool 587 110.

Make sure the gudgeon pin bushing is not
damaged and then proceed as below:

1

Fit the bearing cap as marked and torque
tighten the bolts to 50 Nm +90°.

2

Fit the connecting rod in the tool using the
expander and put the corresponding
gudgeon pin in the gudgeon pin bushing.

3

Then apply the indicator to the gudgeon pin.

Number

Designation

Illustration

Tool board

587 110

Control device

-

Connecting rod

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Check whether the connecting rod is twisted
with the indicator studs horizontal.

Checking for twisted connecting rod

01

1216

Check whether the connecting rod is bent with
the indicator studs vertical.

Checking for bent connecting rod

01

_

1215

The distance between the indicator studs on the
tool illustrated here is 75 mm. The distance
between one of the indicator studs and the
measuring surface must be max. 0.05 mm when
measured using this tool. Check with a feeler
gauge.

Check also whether the connecting rod is bent in
an S-shape. This is done by measuring the
distance between the outside of the connecting
rod bushing and the level surface of the tool.
Turn the connecting rod around and measure the
corresponding distance. The difference between
the two measurements should be between
3.3-4.5 mm.

Connecting rod

Checking whether the connecting rod is bent in
an S-shape

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Renewal of bearing bushing in
connecting rod

Special tools

Number

Designation

Illustration

99 403

Tool for renewing bearing
bushing

99 403

115 527

1

2

3

Use tool 99 403 when renewing the bearing
bushing.

The tool comprises three parts:

1

Pressplate with guide pin

2

Press drifts

3

Supports

There are different kinds of supports depending
on the engine type. The support marked E is for
16 litre engines.

99 403

115 527

1

2

3

Connecting rod

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1

Place the connecting rod on the pressplate
so that the big end is resting on support E.
Turn the press drift with the smaller
diameter against the bearing bushing and
press it out.

11

5

5

2

8

2

Turn the press drift and mount a new
bearing bushing onto it. Press in the bearing
bushing.

11

5

5

2

9

After pressing in a new bearing bushing, it must
be finish-turned. This requires special
equipment. Measurements as illustrated.

Diameter, d = 54.030-54.043 mm

Surface quality = 0.6 Ra

d

0.008 A

A

0.007

0.008

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Connecting rod