Iveco Daily Euro 4. Manual — part 61

88289

88292

75310

88293

Figure 136

Figure 137

Figure 138

Thoroughly clean the bottom main bearing shells (2) and
mount them in the crankcase base (1).

Mount the crankcase base (12).

Tighten the screws in the sequence shown in the figure in
three steps:

- Step 1: with a torque wrench, to a torque of 50 Nm.

- Step 2: closing to an angle of 60

°.

- Step 3: closing to an angle of 60

°.

The end float is checked by setting a dial gauge (2) with a
magnetic base on the crankshaft (1) as shown in the figure.
The normal assembly clearance is 0.060 — 0.310 mm.

If you find the clearance to be greater than as required,
replace the rear main bearing shells carrying the thrust
bearings and repeat the clearance check between the
crankshaft pins and the main bearing shells.
If the end float of the crankshaft does not come within the
prescribed values, it is necessary to grind the crankshaft and
accordingly change the main bearing shells.

α

Figure 139

- Remove the bottom crankcase.

The clearance between the main bearings and their
associated pins is measured by comparing the length of the
calibrated wire (1), at the point of greatest crushing, with the
graduated scale on the casing containing the calibrated wire.
The numbers on the scale indicate the clearance of the
coupling in millimetres, which must be 0.032

÷ 0.102 mm.

If the clearance is not as prescribed, replace the bearings and
repeat the check.

Checking crankshaft end float

Then tighten the outer screws to torque 26 Nm.

Use tool 99395216 (11) for the angle closing.

The middle main bearing has half thrust washers
integrated in it, so it performs the function of a
thrust bearing. It is supplied as a spare part only with
the normal shoulder thickness.

NOTE

NOTE

F1C ENGINE

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88294

88292

88296

88297

Figure 140

Figure 141

Figure 142

Figure 143

Thoroughly clean the crankcase / crankcase base mating
surface.
Apply, on base, sealant LOCTITE 510 IVECO no. 93162432,
as indicated in the scheme. The sealant must result to be
even, not patchy.

Mount the crankcase base (12) and tighten the fixing screws
in three stages, following the sequence shown in the figure:

- Step 1: with a torque wrench, to a torque of 50 Nm.

- Step 2: closing to an angle of 60

°.

- Step 3: closing to an angle of 60

°.

Then tighten the outer screws (1) to a torque of 26 — 30 Nm.

Carefully clean the seal seat.
Lubricate the rear shank of the crankshaft with engine oil.
Fit part (2) of tool 99346259 onto the rear shank of the
crankshaft; secure it with the screws (3) and key the fresh seal
(1) onto it.
Position part (4) on part (2); screw down the nut (5) to fit
the seal (1) fully inside the crankcase.

Mount the crankcase base within 10 minutes of
applying the sealant.

Use tool 99395216 (11) for the angle closing.

540460

Assembling rear seal

α

NOTE

NOTE

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107730

107731

75392

Figure 144

Figure 145

Figure 146

Figure 147

Position the metal sheet guard (3) on the cylinder block.
Mount the engine flywheel (1) and screw down the screws (2).
Fit tool 99360351 (4) onto the crankcase to block rotation
of the engine flywheel (1).

Tighten the screws (2) fixing the engine flywheel (3) in two
steps:

- Step 1: with a torque wrench, to a torque of 30 Nm.

- Step 2: closing to an angle of 90

°.

5408

CONNECTING ROD — PISTON
ASSEMBLY

PISTON — CONNECTING ROD ASSEMBLY

1. Piston — 2. Piston ring — 3. Pin — 4. Trapezoidal ring —

5. Oil scraper ring — 6. Slotted oil scraper ring with spiral

spring — 7. Connecting rod body — 8. Bearing shells —

9. Connecting rod cap — 10. Cap fixing screws.

Check the pistons. They must show no signs of seizure,
scoring, cracking or excessive wear; replace them if they do.

α

Take off tool 99360351 (4).

Use tool 99395216 (1) for the angle closing.

88054

Double-mass engine flywheel, one integral with the drive
shaft and one with the input shaft of the gearbox and in
between a torsion elastic dampening system.
The advantages of this type of flywheel compared to the
normal one are:
- Dampening of engine irregularities transmitted to the

gearbox and resulting drive noise reduction;

- Noise reduction in the cabin as a result of the overall

noise reduction.

Check the clutch disc mating surface, if there are too many
scratches, change the engine flywheel (3).
Check conditions of the teeth of crown wheel (1); where
excessive cracking or wear is found, replace engine flywheel.

NOTE

540852

Replacing bearing supporting gear-
box input shaft

The bearing (2) supporting the gearbox input shaft is
removed and fitted using a general-purpose drift.

F1C ENGINE

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540850

ENGINE FLYWHEEL