Removal and
replacement
of
small end
bushing
Whe
n
ta
rrying
01.11
repairs
to
engines
it
wi
ll
sometimes
be
necessary to r
ep
l
ace
the
sm
all end bushing
of
the co
nn
ecting rod. A special
1001
has been
de
signed for this
purpose (
rep
air tool no.
9)
.
A special reoming attachment
is
required when reaming out a newly fitted bushing,
cnd
this h
as
been developed
in
collaboration with the Germon firm of Hunger (re-
pair
too
ls
no.
10,
11
,
12
and 13).
The
following procedure should be
adopt
ed when replacing a small
end
bushing:
F
ig
.
18
f ig.
19
16
Removing small
end
bushing
Fig.
18
F
ix
the gui
de
roil
11/,
as i
ll
ustrat-
ed,
adjust it in fe
olion
10
the
connecting rod,
cnd
light
ly
se-
cure it by meons
of
two washers
(2)
and two nuts (
3),
Press gui
de
ra
il
uniformly
agai
n
st
the two
st
uds
and
tighten nuts
(3)
.
Clomp the connecting r
od
by
means of eccentri c pins
(9)
and
press
out
the small end bushing
as
follows:
Insert withdrawal boll
(4)
with
guide
bush
(5)
and
pressure bush
(6) into the small
end
bushing.
Fit holding sleeve (7), screw the
nut
(S)
and
press
ou
t the small
end
bushing.
Inserting
repl
ac
em
ent
bushing
fig
.
19
When
in
serting the
replace
m
ent
bushing
(k),
core
should
be
lake
n
to ensure that both oil holes
(i
n
the bushing
and
in
the connect·
ing rod)
are
in
alignment.
Carefully insert withdrawal tool
Ie)
with
,ressure
bush (
g)
into
small
en
bushing
(kj.
Fit guide bush
(f)
and
holding
sleeve (h
),
screw the nut
(i)
and
press
in
the bushing
Ik)
so that
it
projects equally
on
both sides.
Centering the c
onn
ecting rod
Fill.
20
Mount su
ppor
t Ir) with
guide
bush
(g)
on
guide
rail
(0
)
and
screw
it
tig h
t.
Insert
reamer
(t),
shonk foremost,
in
to the
guide
bush
(g)
and
accu'
rately
center
the connecting r
od
(v)
with the
aid
of
the
toper
.
Care should
be
token not to dis·
place
the connecting r
od
axially
or
radia
lly.
Then bring eccentric pin
(w)
lightly into
contact
with the
can·
necting rod and secure
it
with
nut
(x).
Press eccentric pin
(y)
firmly
against
connecting rod
and
t
ig
h-
ten nut (z).
Reaming the
sma
ll
end
bushing
Fig. 21
(ove
r the crankcase.
The front adjusting nut
(q)
of
the
reamer
is
provided
wi
th mark·
ings:
each
division
corresponds
to 0.02 mm (0.00079 in
.).
In
se
rt
reamer
and,
with the
aid
C?f
adjusting nu
ts
(q
and
pI,
ad·
tust
it
to the
diameter
of
the
bore
of
the small
end
bushing.
~
'S
4
0$
4
.
"
Fill.
20
-
fig.
21
Rem
ove
rea'!l~r.
from the bushing,
sla
ck
en lock nut (p),
alter
position
of
adjusting n
ut
(q) by one
diVIS
ion,
and
secure the blodes
wi
th lock nut (
p).
The s.mall
end
bushing
can
now be r
eamed
car
efully with the
aid
of
the adjustable
reaming tool
(I)
and
the
addi
tion
of
oil or paraffin.
Check the fit with the
aid
of the
gudgeon
pin.
~eaming
should
be
continu
ed
un
til
the
oi
l
ed
gudgeon
pin
sl
ides
wi
th a d
ose
Ms
ucking
M
fit
thr
ough
the r
eamed
small
end
bushing.
Bore tolerance for the bushing
=
(/J
18 t
g:g~
mm
0708
+0
.000
78.
.
66
+ 0.00118
In.
dia.
FICHTEL & SACHS AG,
8720
SCHWEINFURT, GERMANY
supply this special reaming tool
in
two
venions
or
individual c
ompon
ents
if
required.
Relevant prospectuses
are
available
from
us
on reques
t.
17
To Next Page
Loading...
Need help?
General
