Datsun 1000 - Page 24

18
Engine
I
1
t
1
he
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J
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r
Checking
Clearance Between Outer Rotor and
Body
expansion plug
remove the
plug
and
withdraw the filtet
by
pass
valve
spring
and ball
Disc
tt the
expansign
I
lug
8
Thoroughly
clean all
components
of
the
pump
and
remove
all
traces of the old
gaskets
from the
gasket
faces of
the
pump
and crankcase
9 Insert the inner
rotor
and
shaft
in the
pump
body
fit the
drive
gear
and
temporarily
fit the
retaining pin
10 Check the end float of the
shaft and rotor
in the
body
TItis should be a
minimUm free fit
1 I
Apply
engine
oil to the outer
trochoid rotor
with the
mark
made on
dismantling
to
the
top
and
slide
it
into the
pump body
to mesh with the inner
rotor
12
Check the
clearance between the
outer rotor and
the
pump
body
and also between the
highest point
of
the
inner rotor
lobe to the
highest
point
on
the outer
rotor
lobe
using
feeler
gauges
of the
specified
thickness see
Specifications
If clearance at these
points
is in
excess
of wear limits renew the
pump
assembly
13 Using
a
straight edge placed
across the
ends of the
rotors
and
the
pump
body use
a feeler
gauge
to measure
rotor to cover end clearance see
Specifications
14
f end float of the
rotor shaft
is excessive remove
the
drive
gear
and instal a
suitable
spacer
shim
J
5
Instal the
drive
gear
and
peen
the
retaining pin
0
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w
Cftlecking
Clearance Between Inner and Outer Rotor lobes
16 Apply
engine
oil to the inner and outer
rotor and
instal the
outer rotor
J
7 POsition a
new
gasket
on the
cover
face
of the
pump body
and locate it
on the cover dowels
J
8
Place
the
body
cover
in
position
on the
main
body
to locate on the
dowels
and
instal
and
tighten
the
small
securing
bolt
19 Place
the filter
by pass
valve ball in
position
followed
by
the
spring
small end first
and instal a new
xpans ion
plug
Use a
small
amount
of
sealing compound
on
the
plug
to
prevent
oil leaks
20 Insert
the relief
valve
plain
end first
in the bore
in the
pump
body
followed
by
the
spring
ana
any
shims
that
are fitted
Place the shims in the
hollow bure of
the
retaining
plug
21 Instal
the
plug
and
gasket
and
tighten securely
l22
Screw
the
pressure light
sender
unit into
position
in the
cover and
tighten just
sufficiently
to
prevent
any
oil
leaks
23
Using
a new
gasket
instal the
pump
assembly
on
the
crankcase and
tighten
the three
securing
bolts
to
the
specified torque
24
Instal
the
oil
filter unit on
the
pump
cover and
tighten by
hand
only
24
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