Scania 16 litre engine. Work Description — part 13

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Cylinder block

General tightening torques

Specified tightening torques apply with a
tolerance of +/- 15% unless specified otherwise.

The following tightening torques apply in general
unless otherwise specified:

Flange bolt M6

8.6 Nm

Flange bolt M8

26 Nm

Flange bolt M10

50 Nm

Flange bolt M12

92 Nm

Stud in casting M8

13 Nm

Stud in casting M10

25 Nm

Cylinder block

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0105w15b.mkr

Overhaul of the cylinder block

Heat arising from the main bearings seizing and
rotating in the cylinder block will change the
properties of the material in the cylinder block.
These cylinder blocks must be discarded.

If the main bearing seizes but does not rotate in
the cylinder block, the cylinder block can be
overhauled. The main bearing seats must
comply with the demands on roundness given in
the table. Machining out-of-round main bearing
seats is something we do not recommend.

Tightening torques

1

Measure the diameter at four different
positions as illustrated. The diameter must
be measured with the main bearing caps
tightened and without main bearings. Even
the side bolts must be tightened.

2

Compare the dimensions with those in the
table.

Main bearing cap bolts

90 Nm+90

°

Side bolts

180 Nm

113 584

Minimum permitted
diameter

Maximum permitted
diameter

Greatest permitted
difference between the
largest and smallest
diameter on the same main
bearing seat.

112.200 mm

112.222 mm

0.016 mm

Cylinder block

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Cylinder liner

Removing

Special tools

1

Mark the cylinder liners with the numbers
1-8. The mark should be facing front. The
mark is necessary so that the liners can be
refitted in the same place and position as
previously.

Note: The mark must be made only on the
surface indicated in the illustration. Other
surfaces are for sealing.

Number

Designation

Illustration

Tool board

99 066

Cylinder liner extractor

D2

11

5

7

39

2

Remove the cylinder liner using cylinder
liner extractor 99 066.

Cylinder liner extractor with hydraulic cylinder

99 003

100040

99 066

3

Remove the sealing ring in the cylinder
block.

Cylinder liner

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0105w15b.mkr

Fitting

1

Make sure the interior of the cylinder block
is clean. Clean the O-ring surfaces.

2

Carefully check the cylinder liners, both
new and old, for cracks that can arise during
transport or careless handling. Tap the liner
carefully with a metal object. It should give
a clear metallic ring if it is intact. If it is
cracked, it will sound "cracked".

3

Fit the cylinder liner without O-rings and
check the cylinder liner height as described
in Measuring the cylinder liner height.

4

Remove the cylinder liner.

5

Lubricate the O-rings that seal between the
cylinder liner and the engine block with
glycerine or unscented soap and fit them.

6

Lubricate the lower guide surface on the
cylinder liner.

7

Turn the liner with the stamped cylinder
number facing forward and carefully tap it
down with a rubber mallet.

Cylinder liner