Scania 16 litre engine. Work Description — part 20

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77

Flywheel

Removing

Special tools

1

Remove the engine speed sensor from the
flywheel.

2

Remove the bolts for the flywheel.

3

Pull off the flywheel from the crankshaft
using puller bolts 87 368.

Number

Designation

Illustration

Tool board

87 368

Puller bolt

AM1, D3, B1, AD1

00

1

805

87 368

111 898

87 368

4

The flywheel can be lifted using two
M10x100 bolts that have been partially
threaded into the holes.

Flywheel

111 899

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0110w14b.mkr

Fitting

Specifications

Special tools

1

Fit two guide pins 99 324 in the flywheel
housing.

2

Fit the flywheel on the crankshaft.

IMPORTANT! Always use new bolts.

3

Torque tighten the bolts alternately to
130 Nm and then a further 90°. Use tool
99 411 to lock the flywheel.

4

Fit the engine speed sensor.

Flywheel

Max. machining allowance for disc pressure surface

Refer to group 4, clutch

Tightening torque

Flywheel bolts

130 Nm+90

°

Number

Designation

Illustration

Tool board

99 324

Guide pins

D5

99 411

Tool for locking flywheel

D5

1

00335

99 324

99 411

116

489

90

o

o

115

798

130Nm + 90

Flywheel

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Support bearing

Renewal

Special tools

1

Remove the retaining rings on both sides of
the support bearing.

2

Knock out the support bearing from the
flywheel using drift 99 250.

3

Fit the inner retaining ring and a new
support bearing using drift 99 250.

4

Fit the outer retaining ring.

Number

Designation

Illustration

Tool board

99 250

Drift

D3, C4

99 250

112 640

99 250

01_1392

Support bearing

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0110w14b.mkr

Ring gear

Renewal

Renew the flywheel ring gear if the gear teeth
have become so worn that the starter motor
pinion will not engage.

1

Grind a groove as deep as possible in the
ring gear and crack it open with a chisel.
Remove the ring gear from the flywheel.

!

WARNING!

Use protective goggles due to the risk of
metal shivers.

2

Clean the contact surfaces on the flywheel
with a wire brush.

3

Heat the new ring gear evenly around its
circumference to 100 -150°C.

The ring gear must be turned so that the bevel
on the teeth is facing outwards, towards the
starter motor.

111 900

4

Lay the heated ring gear on the flywheel so
that the bevelled side is facing the starter
motor. Make sure the ring gear is securely
against the flywheel. If necessary, knock
down the ring gear with a plastic hammer.

5

The ring gear must not be cooled rapidly but
be left to cool in the open air.

Ring gear