1973 DATSUN B110 oil change

EMISSION
CONTROL
AND

TUNE
UP

Mechanical

knocking

Crankshaft

bearing

knocking

Connecting
rod

bearing

knocking

Piston
and

cylinder

noise

Piston

pin
noise

Water

pump
noise

Others
Defect
or

malfunction
of

ignition
system

spark
plug
high
tension
cable
breaker

point
ignition
coil
etc

This

strong
dull
noise
increases
when
the

engine
is
accelerated
To
locate

the

place

calise
a
misfire

on
each

cylinder
If
the
noise

stops
by
the

misfire
this

cylinder
generates

the
noise

This
is
a
little

higher
pitched
noise

than
the

crankshaft

knocking
and
also
increases

when
the

engine
is
accelerated
Cause
a

misfire
on
each

cylinder
and
if
the
noise

diminishes
almost

completely
this
crank

shaft

bearing
generates
the

noise

When

you
hear
an

overlapping
metalic
noise

which
increases
its

magnitude
with
the
revo

lution
of
the

engine
and

which
decreases
as

the

engine
is

warmed

up
this
noise
is
caused

by
the

piston
and
cylinder
To
locate
the

place
cause
a
misfire
on
each

cylinder

This
noise
is

heard
at
each

highest
and

lowest
dead

end
of
the

piston
To
locate

the

place
cause
a
misfire
on
each

cylinder

This

noise

may
be

caused

by
the
worn
or

damaged
bearings
or

by
the
uneven

surface

of

sliding
parts

An

improper
adjustment
of
the
valve
clear

ance

Noise

of
the

timing
chain

An

excessive
end

play
on
the
crankshaft

Remarks

Disengage
the
clutch

slightly
and

this

noise
will

stop

Wear
on
the
clutch

pilot
bushing

Remarks
This
noise
will
be
heard
when
the

clutch
is

disengaged

ET
31
Adjust
or

replace
ignition
syste
m

This
is

caused

by
the
wom
or

damaged

bearings
or

unevenly
worn
crankshaft

Renew
the

bearings
and

adjust
o

change
the

crankshaft

Check
the
lubrication

system

Same
as
the

case
of
crankshaft
bear

ings

This

may
cause
an
abnormal

wearing

of
the

cylinder
and
lower

compression

which
in

turn
will

cause
a

lower

output
power
and
excessive

consump

tion
of
oiL

Overhaul
the

engine

This

may
cause
a

wear
on
the

piston

pin
or

piston
pin
hole

Renew
the

piston
and

piston
pin
as

sembly

Replace
the

water

pump
with
a
new

one

Readjust

Adjust
the
tension

of
the
chain

Disassemble
the

engine
and
renew
the

main

bearing
bushing

Renew
the

bushing
and

adjust
the

drive
shaft

EMISSION
CONTROL
AND

TUNE
UP

Othm

POOR
FUEL

CONSUMPTION

See
the

explanation
of

the

power
decrease

Othe

TROUBLE
IN

OTHER

FUNCfIONS

Decreased
oil

pressure

Excessive
wear

on
the

sliding

parts
Damaged
or
seized

piston
rings

Worn

piston
ring
groove
and

rings

Fatigue
ofvalve
oil
seal

lip

Worn
valve
stem

Inadequate
quality
of

engine
oiL

Engine
overheat

Exceeding
idling
revolution

Defective
acceleration

recovery

Fuel

leakage

Inadequa
Ie
oil

quality

Overheat

Defective
function
of
oil

pump
regulator

valve

Functional
deterioration
of
oil

pump

Blocked
oil
ftIter

nerased
clearance
in
various

sliding
parts

Blocked
oil
strainer

Troubles
in
the
oil

gauge
pressure
switch

Oil

pressure
decrease

Defective

quality
or
contamination
of
oil

Defective
air

cleaner

Overheat
or
overcoal

ET
33
Renew
the

rings

Repair
or
renew
the

piston
and

cyl

inder

Renew
the

piston
and

piston
ring

Replace
the

seal

lip
with
a
new
one

Renew

the
valve
or
the

guide

Use
the

designated
oiL

Previously
mentioned

Adjust
it
to
the

designated
rpm

Adjust
it

Repair
or

tighten
the
connection

of

fuel

pipes

Use

the

designated
oil

Previously
mentioned

Disassemble
the

oil

pump
and

repair
or

renew
it

Repair
or

replace
it
with

a
new
one

Renew

it

Disassemble
and

replace
the
worn

parts
with

new
ones

Clean
it

Replace
it

with
a

new
one

Previously
mentioned

Replace
the
oil
with

proper
one
and

change
the

ftIter
elemerit

Replace
the
air

cleaner
element

Previously
mentioned

ENGINE

ST130300
1

EM156

Fig
EM
69

Piston

pin
installation

Fig
EM
70
Piston
and

connecting
rod

assembly

Notes
8
Piston

pin
is

press
fitted
to
the

connecting
rod

tightly
and

fitting
force
is
from
1
to
3
tons
When

fitting
piston
pin
special
tool
must
be
used

When

pressing
the
piston
pin
into
the
connecting

rod

apply
engine
oil
to
the

pin
and
the
small
end

of
the
connecting
rod

b

Arrange
the

connecting
rod
so
that
the
oil

jet

of
the

connecting
rod

large
end
is
directed
toward

the

right
side
of

the

cylinder
block

2

Installing
piston
rings

Install
the

top
and
second

fings
in

right
positions
so

that

the
marks
are

faced

upward

3

Fix

bearings
on
the

connecting
rod
and
the

con

necting
rod

cap

Note
Clean
the
back
side
of
the

bearing
carefully
ASSEMBLING
ENGINE

Set
the

cylinder
block
on
the

working
stand
with
the

engine
bottom

faced

upside

2

Install
the
valve
lifters

Install
the

camshaft
and

retain

by
the

camshaft
locate

plate
Locate

plate
tighten

ing

torque
is
0
4

to
0
5

kg
m
2
9
to
3

6
ft
lb

Note
Set
the
locate

plate
so
as
the
LOWER
mark

comes
to
the

engine
bottom
side

Set
the
main

bearings
on
their

positions
on
the

cylinder

block

Fig
EM
71

Installing
camshaft
ocate

plate

Fig
E1U
7
2
lvlajn
betlrj

lg
cap

Notes
a
The
center

bearing
No
3

bearing
is
a

flanged

type
for
thrust
force

b
Two
inner

bearings
No
2
and
No
4
are
of
the

same

type

c
The
front

bearing
No
1
is
the

same
type
a

the
rear

bearing
No
5

d
All

bearings
except
for
No
1

bearing
are

interchangeable
between

upper
and
lower
bear

ings

EM
26