70168
70169
Figure 11
Figure 12
When finding the distortion areas, replace the cylinder unit.
Planarity error shall not exceed 0.075 mm.
Check cylinder unit operating plug conditions, replace them
in case of uncertain seal or if rusted.
!
In case of regrinding, all barrels shall have the same
oversize (0.5 mm).
Checking head supporting surface on cylinder
unit
TIMING SYSTEM
Camshaft
CAMSHAFT MAIN DATA (4 CYL.)
Specified data refer to pin standard diameter
α
±
±±
±
Check main bearing housings as follows:
- fit the main bearings caps on the supports without
bearings;
- tighten the fastening screws to the specified torque;
- use the proper internal gauge to check whether the
housing diameter is falling within the specified value.
Replace if higher value is found.
SECTION 4 − OVERHAUL AND TECHNICAL SPECIFICATIONS E NG I NE S
13
ED. FEBUARY 2003
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