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STRIPPING THE ENGINE UNIT
-
drain
the converter oil
with
a syringe (see
fig.
240);
-
flatten
the wings 01 the secu ring
plates,
then loosen
the
retaining screws and
re·
move the
converter
and the starter ring
gear (see fig. 240/1);
-
remove
the cylinder head covers, then bring
the pistons to
T.D.C. (closed
valves)
and
slide out the rocker;
-
remove the rocker·push rods assembly, then
loosen the nuts
and
remove rocker holders
and cylinder heads;
-
remove the alternator from the crankshaft,
using the proper Allen key and
pin
14906600;
-
lake
all
the gaskets between
cylinders
and
cylinder heads, then remove the cylinders
and lake
off
the gaskets between
cylinders
and
crankcase;
-
using
pliers
lake off the piston pin
circlips,
then using the special tool 26907800
(11
in
lig. 17)
slide
out the piston pins.
Caution: when removing cylinder head, pi-
ston
and
cylinder ass.ies, pay allention to
take left and right ass.y well apart;
-
flaUen
the wings of the securing plates, fit
the special tool 18911850
(59
in
fig. 241)
on
the flywheel
and remove the
flywh
eel:
toosen
the screws and
remove the
valve
gearing cover;
th
is
cover
fits the
converter
leed
pump, which is controlled
by the
cam-
shaft and the valve controlling the pressure
of the converter hyd rau lic circuit;
-
loosen the nut securing the oil pump
gear,
using eye
wrench
and
holdfast
tool
n.
14927300:
-
loosen the nut securing the camwheel using
the tool
14927300
(20 In
fig
.
242) and
special wrench 18927650
(60
in
fig.
242):
-
flatten
the
washer
securing wings
and
take
out the
ring
using
tool
14927300
(20 in
fig. 243) and special
wrench 14
92 76 00
(60
In fig. 243);
remove the
valve gear and chain
ass.y
from
the shafts;
-
loosen the screws and remove the
camshaft
securing flange and
the
camshaft from the
holders on the crankcase;
-
loosen the
screws
and remove the oil
sump
from the
crankcase. The oil sump will be
complete with filters
and oil pressure relief
valve:
-
loosen
the nuts and
dismantle
the con-rod
caps, then remove
the can rods through
the
cylinder holes in the
crankcase:
-
flatten the wings
01 secu ring
plates, remove
piping and
securing
screws
then
remove
the flange, from the crankshaft, lIywheel
side,
using the tool 12913600
(18 in fig.
19):
-
dismantle the
crankshaft
from the
flange,
valve gearing
side;
-
flatten the wings of the
securing
plates,
loosen the screws and
remove
the
flange,
valve gearing side:
-
dismantle
the
cylindre head,
using 1001
1090 72 00 (12
in
fig
.
16)
and proceed
as
follows;
-
set the tool
on
the
upper plate
and valve:
-
screw in
the tool
screw 10 tighten the tool
Itself:
in order
to
avoid any tool distortion,
tap
on the tool
head,
if a
strong
resistance
in screwing is
found:
this bealing will make
the two semlcones free from the upper plate:
-
screw in to remove
the
two semlcones from
the
upper plate;
-
take out the tOOl, then remove upper plate,
ouler spring, inner spring bottom plate,
shims
and finally the valve.
'2.
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