Engines Iveco C10,C13, Cursor 10, Cursor 13. Manual — part 33
60624
47585
Check injector protrusion (2) with the dial gauge (1).
The protrusion must be 1.14 to 1.4 mm.
Checking injector protrusion
116812
INJECTOR CASE ASSEMBLY DIAGRAM
Figure 82
- Using grinder 99394041 (1-2), ream the injector seat in
the case (3), check the injector protrusion from the
cylinder head plane which must be 1.14 to 1.4 mm.
Figure 83
Figure 84
39
CURSOR ENGINES F3A
SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS
Base - May 2007
86925
86934
TIMING CONTROL COMPONENT PARTS
1. Camshaft - 2. Bushing - 3. Pin - 4. Articulated rod -
5. Camshaft control gear - 6. Idler gear - 7. Twin idler gear
- 8. Drive shaft driving gear.
TIMING GEAR
Camshaft drive
Idler gear pin
Idler gear
87258
Twin intermediate gear pin
Twin idler gear
Replacing the bushings
Gear bushings shown on Figures 86 - 87 can be replaced
when they are worn. Put up the bushing, then bore it to
obtain the diameter shown on Figure 86 or Figure 87.
The bushing must be driven into the gear by following
the direction of the arrow and setting the latter to the
dimension shown on Figure 86 or Figure 87.
Rated assembling play between gear bushings and pins:
Figure 86 — 0.040
÷ 0.080 mm
Figure 87 — 0.045
÷ 0.085 mm.
Figure 85
Figure 86
Figure 87
NOTE
40
SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS
CURSOR ENGINES F3A
Base - May 2007
47506
47505
47507
Figure 88
Figure 89
Figure 90
Camshaft
Checking cam lift and pin alignment
When the camshaft (4) is on the tailstock (1), check alignment of supporting pin (3) using a centesimal gauge (2); it must not
exceed 0.035 mm. If misalignment exceeds this value, replace the shaft.
In order to check installation clearance, measure bush inner diameter and camshaft pin (1) diameter; the real clearance is obtained
by their difference.
If clearance exceeds 0.150 mm, replace bushes and, if necessary, the camshaft.
Place the camshaft (4) on the tailstock (1) and check cam lift (3) using a centesimal gauge (2).
1
41
CURSOR ENGINES F3A
SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS
Base - May 2007
The bush surfaces must not show any sign of seizing or
scoring; if they do replace them.
60626
116759
Figure 91
Figure 92
MAIN DATA - CAMSHAFT AND TOLERANCES
The surfaces of shaft supporting pin and cams must be extremely smooth; if you see any sign of seizing
or scoring, replace the shaft and the relative bushes.
MAIN DATA OF CAMSHAFT BUSHES AND RELEVANT HOUSINGS ON CYLINDER HEAD
* Bush inner diameter after installation
Bushings
Measure the bush inner diameters with a baremeter and replace
them, if the value measured exceeds the tolerance value.
To take down and fit back the bushes, use the proper tool
99360499.
Camshaft
42
SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS
CURSOR ENGINES F3A
Base - May 2007
TOLERANCES
TOLERANCE CHARACTERISTIC
SYMBOL
ORIENTATION
Perpendicularity
⊥
POSITION
Concentricity or coaxial alignment
OSCILLATION
Circular oscillation
↗
IMPORTANCE CLASS ASSIGNED TO PRODUCT CHARACTERISTICS
SYMBOL
CRITICAL
IMPORTANT
⊕
SECONDARY
⊝
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