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ENGINE 1.3L QUADRAJET (90PS)
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46.Fit the caps (1b) on the connecting rods (1a) and
secure them by tightening the M8 bolts (1c) to the
recommended torque of 1.9 ~ 2.1daN m + 40° +/
- 2°.
NOTE :
The connecting rods are pre-set fracture type and
are supplied already fractured by Parts together with
the cap bolts. The connecting rod caps are not
interchangeable because the fracture profile differs
from part to part.
47.Check that the big end diameter (2) (without fitting
the half-bearings) is within the recommended limits
of 45.734 mm ~ 45.744mm; if not, replace the
connecting rods.
48.Check that there are no signs of seizing on the
flywheel ring gear teeth; if this is not the case,
replace it.
49.Refit the engine oil jets in their seats and secure
by tightening the M6 bolts to a torque of 0.8 ~ 1.0
Kg-m .
NOTE :
The crankshaft supplied by the Parts Dept. comes
without half-bearings and the main journals and
crankpins are the “normal” size; the half-bearings to
be fitted must therefore be selected identifying the
class of each main journal and crankpin for the new
crankshaft.
The letter code stamped on the timing side counter-
weight is required for selecting the grade.
Above is an example of identifying the main journal
and crankpin grade referring to an engine with nominal
diameter main journals (51.000 mm).
1) Crankpin alphabetical identification code - BBBB
(the same for all bearings): the first letter from the
left refers to the first timing side bearing.
2) Main journal alphabetical identification code -
AAAAA (the same for all bearings): the first letter
from the left refers to the first timing side bearing.
3) Alphabetical identification code for thrust washers
- R.
Only use the alphabetical codes for references 1, 2
and 3 in the diagram, all the other codes on the
counter-weight should not be used.
For the identification of the main journal grade, refer
to the alphabetical code 2 shown in the diagram.
In the case of the diagram, for example, the letter
code AAAAA (Grade A - Normal) indicates that all
five bearings are prepared for the fitting of half-
bearings with a Red coloured paint mark on the edge;
as a result, specific half-bearings should be identified
for different alphabetical codes (bearing grade).
Normal grades are usually used on new engines with
undersizes only used in exceptional cases.