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44
OPERATION
No.
ID
1 OO- 3 :
To ozwrhau~ the en@re
ID
19
30
31
32
33
34
2.
The
plane
of assembly
of
the
connecting
rod
cap
and
of
the
body
is
oblique.
This
must
be adhered
to when
fitting
(see
Pl.
2).
3.
To
allow
for
the
taper
of
the
piston
bores
and
of the
gudgeon
pin,
one
direction
of assembly
must
be
observed.
The
greatest
bore
diameter
is
marked
with
a grease
pencil
on
the
boss
and
the
smallest
pin
diameter
is
marked
in
grease
pencil
on the
end
of the
pin.
a)
Place
a gudgeon
pin
circlip
on
the
side
of
boss
not
marked
with
the
grease
pencil.
b)
Bring
the
pistons
to
a temperature
of
about
6OoC
either
in
an
oil
bath
or
by
heating
in
an
oven,
so that
the
gudgeon
pin
(first
coated
with
oil)
can
be
inserted
by
hand
(do
not
interchange
the
gudgeon
pins;
they
are
weighed
and
paired
with
their
respective
pistons).
cl
Fit
the
other
circlip
and
make
sure
that
the
circlips
are
seated
properly
in
the
grooves.
Insert
the
bearing
in
the
flywheel
bore
:
When
the
circlip
is
in position
in
the
flywheel,
insert
the
bearing
in
its
housing
(use
a tube)
. . . . . . . . . . . . . . . . .
To
fit
the
connecting
rods
to
the
crankshaft
:
Oil
the
bearing
faces
with
an
oil-can
(SAE.
20
engine
oil).
Do
not
use
a brush
as this
is
liable
to
cause
the
introduction
of
dirt
or
brush
hairs.
Fit
the
half
bearings
in
the
rod
and
in
the
cap.
Make
sure
that
the
lugs
engage
in the
grooves.
If
the
old
bearings
are
to
be used,
make
sure
that
they
are
fitted
in
accordance
with
the
reference
marks
made
when
dismantling
.
Fit
the
rods
on
the
crankshaft
(see
Pl.
2 for
positioning).
Do
not
reverse
the
position
of the
cap
on
the
rod.
Tighten
the
screws
to
36 ft.lbs
(5 m.
kg)
(socket
1624-T,
see
Pl.
16,
fig.
6).
This
torque
is
essential
. . . . . . . .
:.,
NOTE
- The
bearings
are
slightly
narrower
than
the
cap
and
the
big
end
of
the
connecting
rod.
The
cap
is
likewiset.
narrower
than
the
big
end.
.s
To
fit
the
camshaft
:
a)
Fit
the
camshaft
after
first
oiling
the
bearings.
Tighten
the
screws
of the
thrust
plate
(12)
to
7.5
ft.
lbs
(1
m.
kg)
and
turn
down
the
locking
tabs
. . . . . . . . . . . .
b)
Oil
the
tappets
and
insert
them
in the
bores.
/
To
fit
cylinder
barrels
and
cylinder
head
(see
Pl.
12)
:
NOTE
- Because
they
are
precision
machined,
the
barrels
can
be
fitted
into
their
bores
in
the
cylinder
block
without
adjusting
their
heights,
there
is
therefore
only
one
type
of
paper
gasket.
a>
Make
sure
that
the
base
of
the
barrel
and
the
bearing
face
in
the
cylinder
block
are
perfectly
clean.
Offer
up
the
barrels
to
the
cylinder
block
making
sure
that
they
do not
tilt.
b)
Place
seal
on
cylinder
barrel,
so that
its
flat
edge
is
parallel
with
the
flat
part
of the
barrel
and
with
the
reinforcement
towards
the
barrel.
By
hand,
work
seal
onto
the
cylinder
barrel
until
it is
as far
as
the
first
shoulder
on the
barrel
at
"a".Now
use
the
hardboard
washer
to
complete
the
operation.
The
washer
is
supplied
in
the
packet
of
seals
sold
by
our
Spare
Parts
Department.
Otherwise
use
plate
MR-4134
(see
Pl.
12;
fig.
3)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
c)
Place
the
cylinder
barrels
in
the
bores
in
the
cylinder
block.
Make
sure
that
they
are
correctly
in
position.
linder
head.(see
Pl.
3)
:
cylinder
head
locating
dowels
in the
bores
in the
cylinder
blockwith
the
chamfer
towards
the
cylinder
head.
T
TOOLS
Tube
:
Internal
dia.
= 35 mm
External
dia.
= 41.5
mm
Torsion
spanner
247 1 -T
Socket
1624-T
12 mm
box
spanner
Plate
MR-4134
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