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Inspect ""ch plunger spring
seat
for depth
of
its
concave;
replace
the seat
if
[he depth
is
0.
1 nun (0.004 in.) or
o;·er.
(g)
Camshaft
Inspec
t
the camshaft
for
wear
of
it
s
cam sur-
faces
,
of
the:
surfaces of seaJctJ
portions
in
contact
with
oil
seals
,
and
or
screw threads at
both
ends.
Inspect, too
,
for
rustjng
.
damage
and for keyway deformation.
Repair
or replace
[he camshaft depending
On
the result of inspe
c-
tion.
Che
ck
the
comshaft
fo
r
allgnmenl
by
,upport-
irlg
it
with
cen
te
r
pins
fitted
to it
s end
faces,
and
by
me:asuring
fhe
omour.t
of deflection
with
•
di.l
g.uge.
A
com'haft
exhibiting
a
deflection of 0.15 mm (0.0059 in.) or over
at
its
middle
seclion
mwt be straightened in a
press
or
replaced
by
3
new one.
(4) Assembly
(a)
Install
the cylinder.
(barrels),
poSitioning
each
cylinder angularly as
guided
by the localing pin
and positionrng groove .
.&.!
CAUTIONS
1
l)
These cylInders
are
meaIll for
.hurn
b
·
pres~
sure
fit.
Ne'r'er
attempt to
drive
them
into
lh. bores with
such
3S. mall.t.
b) Aft.r fitling e3ch
cylinder
into (he bor<,
mam]s
it
sc.t
firmly
in
place,
check
to'
be
sure that
it
will
not rotate wben
llimed
with
a
fmger.
Install ing pump
ing el
ement
cylinder
(b)
Fit
a
new
valvo gaske
t to
the delivery
valve,
and
insen
it
into
bore.
Drive
down
the
delivery
'Ialve
by
using
a
drift,
as
shown. making the
seat meet the top of the
cylinder
to present an
Oil-tight face-to-f.ce contact
.
Only light blows
are needed to the
end
of
the
d.rift.
DISASSEMBLY AND REASSEMBLY
.&.1
CAunON
1
Take every precaution
[Q
avoId dus( pariides
getting
in
to
between cylinder and delivery
valve
seat.
Dri
vi
ng
in delivery
valve seat
(c) Insert
the
spring, and
run
in the deUvery
val
ve
holder and
tighten
the
holder
tentalivoly.
Installing holder
(d)
Position (he control rack
in
place,
and install
the guide
screw
.
Fitting
guide screw
117
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