Datsun 1000 Workshop Manual page 24

18
Engine
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Checking
Clearance Between Outer Rotor and Body
expansion plug
remove
the plug and withdraw the filtet
by
pass
valve
spring
and ball
Disc t t the expansign
I
lug
8
Thoroughly
clean all components of the pump and
remove
all
traces
ofthe 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
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5
Instal the
drive gear and peen
the retaining pin
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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
x p a n s i o n
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