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ENGINE
REASSEMBLY
I nser
1
the main bear mg hal' shells
ongmal size
e
=
1.082 to
1.888
mm
oversitf'
•
e
=
2.032
10
2.038 mm
•
Ito be fitted on
XNl
and
XN2
engines with
reground crankshaft)
- Install the crankshaft carefully.
Insert the
thrust washers
(1)
which were fitted
originally {lubrication grooves
facing
the l.rank-
shaft)
2.3 mm
thick.
WARNING
On XN I - XN2 and XM7 engines.
the
diameter
of tlte
rear
main
bearing
is
54.
92
mm m
place of
51.18
mnL
Consequemly the appwprlate
bearing
shells and
t/mlSI
washers
((a)
.
M.5
mm)
must be fitted.
WARNING
011
XM/ZF
-
XM7
-
XNJ
and
XN2 engines
.
fit
u 2.3 mm thmst washer*
(2)
on each side of the
rear
bearing cap
with the lubrication grooves facing
the
l'rankshajt.
'
XM/ZF
:
b
=
58
mm
XM7
·
XNl
·
XN2
·
b
=
61
6
mm
1-n
the bearing
caps,
with their shells
in
place, as
shown opposite,
the rear bearing
cap.
without lateral seals.
Tighten the
10 bolts, fitted with
new Onduflex
washers,
to
7
.5
m.kg
(55
ft.
lbs}.
The crankshaft should
rotate
freely.
t- 1
the
Pnd float checking assembly as shown
opposite.
Note
t
he
amount of
end
float,
which must be
between 0.08
mm
and 0.20
mm.
WVIW. E. CJ llCJ .OrG
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