oil DATSUN 610 1969 Repair Manual

N
Engme
SYMPTOMS
I

Trouble
Shooting
Lubrication
System

SYMPTOMS

bed
t
f
I
h
i
1m
0
p
q
r
I
I
II
bed
t
f
I
h
Ii
I
m
n

ENGINE
WILL
NOT
CRANK

ENGINE
CRANKS
SLOWLY

ENGINE
CRANkS
BUT
OOES
NOT
START

ENGINE
STARTS
BUT
RUNS
FOR
SHORT

PERIODS
aNL
Y

ENGINE
I
tISFIRES
AT
LOW
SPEED

ENGINE
MISFIRES
AT
HIGH
SPEED

ENGINE
MISFIRES
AT
ALL
SPEEDS

ENGINE
MISFIRES
ON
ACCELERATION

AND
FAILS
TO
REV

ROUGH
IDLE

RUNS
ROUGH
AT
HIGH
SPEED

lACK
OF
POWER

POOR
CCElERA
nON

LACK
OF
TOP
SPEED

EXCESSIVE
FUEL
CONSUMmON

EXCESSIVE
OIL
CONSUMmON

PINKING

COMPRESSION
LEAK
PROIABLE
CAUSE

Faull
In
th
e
ltartinll
IYltem
Refer
to
the
ELECTRICAL

EQUIPMENT
leetion
fOI
dilllflOlIll

b
Eft
ineoiltoothick
Stiffenpne

d
Mechanieal
scimre

Flult
In
lhe
IpUlion
I
ltem
Refer
to
the
IGNITION

SYSTEM
IeCtion
for
di
I

f
Flult
the
fuellYlltm
Refer
to
the
FUEL
SYSTEM

Clion
or
di
l
OIII

Incomcl
tllvetlmln

h
ComprellllllIU
IClk

Air
leak
IRlel
JIlIIni
old

j
Reltriction
nhlu5t5ylltm

Ie
Poor
alYe
WIIIIIJ

I
Stick
tnlvall
n

m
Lclklnl
cylinder
held
Illke

Womcamlhlft
lobel

IncolTe
ttappetclurance

p
Worn
dlm
ed
cylinder
born
pUlon5
Ind
or
pll
f1np

q
Wom
nl
fC
paides

Damaced
a1wlttmseal

LeWnloilwaI
pu
e

Incorrectly
installed
apark
plu

CrICked
cylinder

Broken
weakv
w
sprinp
EXCES9lVE
OIL
CONSUMPTION

WW
OIL
ilRESSURE
PROIABLE
CAUSE
REMEDIES

I
Worn
dlmalJl
dcyhnderbon
P
v
lnd
orpulu
nnr
s

b
WorJl
valve
r
uides

C
D
m
led
valve
lIemluls

d
Lnlunr
oil
ul
pillet

e
Flulty
nil
P
uu
IluP
Iwnch
wmn

f
Relief
valve
defecuve

011
pick
up
pipellfline
blocked

h
011
filler
nver
flow
yaJYe
dcffe

WO
n
oil
pump

J
Dlmllfd
om
maUl
Ind
or
bl
nd
b
lnnll

l
lncorreCllndeofentpneoil

l
Oil
level
10

m
Oillevel
tnnhllh

Oillelk
the
preuunled
Ilde
of
the
lubn
IYSfem
p
Tldc

Rel1
f1nd
yllOde1

ne
OVCntZl
nd
nnJ

b
Rcpltte
v
lve
and
Iltd

c
Repl
cc
5c
l

d
Sullu
rt
pl
cp
aI
kCl

e
Trice
Ind
rtClify

f
heel
lod
replace
if
nccess
T

RemoYcblQChJC

h
Chcck
Ind
repllcclfncct
i
ry

i
Repll
e
rump

J
Renew
nnp

k
Rerl
ec
OIl
with

l
Top
up
oil

m
DTllnofllurpIUloil

Tn
ndremedy

Coolmg
System

b
r
h
j
I
m
p
q

d
REMEDIES
SYMI
IOMS

b
Drlm
oiJ
nd
rcpl
ce
with
ot

Add
smlll
quanllty
n
oil
to
the
fuel
Ind

rune
lmeFnd

d
SlfIpenJine
Ind
renew
p
ru
asn
celllry
I
bed
t
f
I
h
I
i
k
I
mn
0

OVERHEATING
ENGINE
FAILS
TO
REAOI

NORMAL
OPERATING
TEMPERAt
lRE

PROIAILE
CAUSE
REMEDIES

I
RetUne
enJine

h
Trace
ndseal

Tr
Ind
seal

j
RemO
f
t
rellnction

k
Relnnd
sel

I
Freelnd
trice
C
UIe

m
Renewguke
Fit
new
clmlhlrt

AdJult
t
appeti

p
bch
ngeenfin

q
Replacevalnluldes
Rtplace
seall

Repllccgukel
Repllcc
plulwlth
correct
Cl
Ie

Renew
cyhndcrblock

Repllce
5prLnp
I
IlIIIIfficien
coolant

b
DriYebellllippinIOfbrobn

c
RldiatOf
fUll
cloq
ed

d
Coo
inlflndefeclln

e
Wit
pl1mpdtfectlve

f
ThelTllOllatj
mmed
Ihul

Thermost
j
mmed
open

r
t
eti
I
kt
r
re
a
q
brake

j
lntel1laJp
se
lheenpne
ndforradi
torbloeked

11
HOItI
blocked

I
Carburetterm
djullmem

m
Excellive
arbon
depolit
in
thecylinden

In
ffici
enpneoil
uae
of
inferior
p1Ide
of
oil

Exce
inrldi
lorlrea
I
Topupradil
v

b
Ti
htenbdtorftnc

I
t
rmify

e
Repl
cwaterpump

f
Rcpll
e
thermoltll

I
Replleclhermolt
t

h
RetimeiaTUlion

i
Unload
ear
check
brl
ktt

j
Trace
ndclu

k
TfI
cdUrblockaae

L
AdjUllcorrc
cth

m
Decarbonise
fO
tne
top
overh
uJ

Top
up
wlth
correct
rade
Dr
inifneceUlry

PUIl
lly
blink
off
in
winter
only

Trouble
Shooting

Ignition
System

SYMnONS
be
d
t
f
I
h

ENGINE
CRANKS
IUT
DOES
NOT
nART

ENGINE
STARTS
BUT
RUNS
FOR
SHORT

PERIODS
ONLY

ENGINE
MISfiRES
AT
LOW
SPEED

ENCINE
WlSflRES
AT
HIGH
SPEED

ENGINE
MISFIRES
AT
ALL
SPEEDS

ENCINE
MISfiRES
ON
ACCELERATION

AND
FAI
TO
REV

ROUGH
IDLE

ENGINE
RUNS
ROUCH
AT
toGH
SPEED

UCK
OF
POWER

POOR
ACCELERAnON

LACK
OF
TOP
SPEED

EXCESSIVE
FUEL
CONSUMmON

PlNKlNC
PROBABLE
CAU5E

t
Bani
dilcharFd
01
defective

b
COJlIllCl
nabr
poinb
nCiCCl
c1Unlftl
renewlna

c
Incorrect
cantlel
ltn
ktr
potftu

d
ConllCt
maker
Iprtn
wuk

Spark
plup
n
d
ch
ntnl
nnewlJIl

r
Jncorrec
llpulpl1llPpI

WronllypeoCap
rtpllllflttad

h
Slltlc
I
lllon
limina
Incorrect

I
Coli
c
plCilor
defC
tl

t
g
o
o
c
o
c
t1o
t
n
h
CllIl
the
toil

H
T
lud

I
Open
cimail
lIlort
nnh
1
conneclion
Ih
spart

m
l
1ulludslnCClfRcllyc
oIIJlCC
tcd

H
T
Ink
coil
dbtribulor
elp
due
oil
din

mol
t
I
o
d
ml

C
ntrlfuplld
anee
not
unetionln
eOll
lctly

p
VKuum
Id
e
not
funclionill
cOIYKtly

q
om
datrlbutw
elm
Or
4iltributor
dldt
bluh

I
UllntWJlOlllpldl
off
ld

L
i
k
I
m
no
p
q
I

b
m
q

f
h
i
j

REMEDIES

I
aceh
tJe
oc
pllce
blHery

b
Clean
01
n

c
Fi
wrrecl
poin

d
Renew
blnker
ll
t

Clea
l
l
ne
plllll

f
Adjull
pt

Fit
cor
c
plu
l

h
aetUne
i
mtlon

I
a
plaCf
I
nece
r

j
Trice
Ind
recury

k
True
ndlecfity

Tnee
nd
leclity

m
Con
c
cOI
ct1r

Clca
wIth
dry
hn
fne
rl

EllImlne
and
Oillpllln
ly

p
Cheek
Ind
rectlly

q
aepllccddectkol
plnl

r
Chlnp
comct
Il
adl
of
fuel
Fuel
System

ENGINE
CRANKS
8lTf
DOES
NOT
START

ENGINE
STARTS
BUT
RUNS
FOR
SHORT

PERIODS
ONLY

ENGINE
MISARES
AT
LOW
SPEED

ENGINE
MISflRE5
AT
HIGH
SPEED

ENGINE
MISFIRES
AT
ALL
SPEEDS

ENGINE
MISAKES
ON
ACCELERA110N

AND
FAILS
TO
REV

ROUGH
IDLE

ENGINE
RUNS
ROUGH
AT
HIGH
SPEED

LACK
OF
POWER

POOR
ACCELERA110N

LACK
OF
TOP
SPEED

EXCESSIVE
flJEL
CONSUMmON

PINKING
BACKFIRE
PROBABLE
CAU5E

Fuel
tank
empty

b
Fu
llinc
blocked

Fuel
pumpd
fectiYe

d
Block
in
cllburene

Air
lock
in
fuel
line

f
Fuel
rut
r
blocked

I
Cuburetter
needle
nlve
jammed

h
Wile
CI
buRlt
r

Errltic
fllel
now
due
blocka

j
IdlinJlpeed
too
low

k
InConectlCtllnlofcttoke
conllol

1
lncorrectcarbuntterfuel
nOltlewl

m
C
muretler
Itlna

Ail
leak
It
Inlet
mlrurold

Incorrect
pade
offuet

p
Carburetter
accelerator
pumpdefect
e

q
Throlll
lintl
rrlIIl
djUlled

IncofftCl
Idjullmenl
of
IdlmJ
mutU
e

Aif
nltef
elogcd

Incorm
t
lpiitiOlluminJ

Clrburellel
Pll
un
lIitkln

Wron
cllburenerjetl
Atled
YMPtO

I
bell
f
1
h
I
j
k
I
m
nOli
I
I
I
0

b
f
h
i
J
k
I
m
REMEDIES
q

FLllllnk

b
Blow
ObSIf1rCllUll
ilh
compl
t
lIed

R
pll
pump

d
RemO
l
e
blockaJe

Trace
Uld
bleed
QUI

r
CIUl1fi1tef

K
Fretne
dle

h
Drlln
d
yout

Removeblockq

J
Adju
throlllelfOl

k
Reset
conllol

1
AdjUSlle
e

m
Wlit
fOI
melt
If
pt
nLS
n
nu

Tlact
lelklndse
a1

Dllu
e
fuel
with
hlah
I
rllln
ubl
ln
blc

p
Trace
fault
and
reeufy

q
AdjuII
correelly

Adju
mutufWconlrol

Clnnnlttr
Retjme
Ilftn

OdClrbulelle
Repllce
Wllh
Je

Clutch
MIPTOOlS
Trouble
Shootmg
Steering
IYMmlMS

mDING
S1
1FFNESS

ITIBJJNG
IIl
ACJt

STEEIUNG
WANDER

WHEEL
SHIIlOlY

CAR
PUl
U
TO
ONE
IIDE

POOR
RECa
Dy
OF
STEERING

WHEEL
10
CENl1tE

EXCESSIVE
01
ABNORMAL
TYKE
WEAR
It
d
e
f
I
II
J

e
It
b
I
J
k1
D
0
P
41
r

nUTCH
SI
IPPING
WIu
NOT

ENGAGE
PROPERLY
CLUfCHDRAG
WILLNOT

DISENGAGE
PROf
ERL
Yl

a
1JTCH
JUDDE

a
tn
CII
eRA
fON
ENCAGEMDIT

CLIJfCH
NOISE
SQUEAL

DEl
ltESSlNG
nlE
PEDAL

nUTCH
NOISE
RATTLE
WHEN
IDI
ING

CLUTCH
NOISE
CHATTER
ON

a
GAGEMENI
I
I
j
ILlm

ROUBLE
CAUSE

I
hllUtrident
f
lay
In
RIM
link

Ia
CllIlclldilC
facbllWl
lmorlludlned

t
Gt
dM
01
oil
cluu
h
d
ana

d
Wellk
or
brotell
pralure
plate
coilsprinp
or
diapht
m
IprIzlf

to
Alrinhydr
lIlie
tma

r
l
ffid
n
r
I
tc
hltcbped

Elc
c
frw
plly
kft
Iink

h
MlIali
DIIleruofdutdabOUJ
i
a

L
ctutcb
dlx
hllb
blndinl
011
of
FctJoz
laput
matt

J
Clutch
dilc
faclnf
10
or
brot

II
Pn
n
pllte
malin
Nrflet
w
d

L
ClukIl
CO
Ierdl
lorl
d

m
Lo
nttl
It
tnlllmblllon
or
rlIkm

Ii
Clutch
d
4i1torWd

LoC
drift
plate
hub

p
Relr
a
ba
tIn
d
rcc

q
Reina
UlIl
Mnt

r
l
o
b
Vau1lcf
luld
l

I
b

OE
1
R08A1LE
CAUSE

I
Adj
t
IinbF

tI
Replace
elutchdlK

c
CIUlllnd
l
eIlIedy
CIII

d
ae
prln

lInSl
llem

f
AdJ
t
tnweL

Niju
st
gII
It
Irom
put

lLaealipll
ReIl
CIU
gfbUadiJll

j
aepllC
t1utdl
dK

11
Pit
ne
puta

1
lI
epla
c

m
TIk
lIp
pia

ae
dK

aepl
cellub

p
Reiin
b

4
Strlilhtenor

f
To
I
p
hy4rw1k
ftuid
Tyre
pnlUUI1IIlncoo
ct
or
un
no

b
Lec1l
oIJ
l
brk
l
ltlnltlt
r

Co
uck
oflubric
t1on
t
t
lU
IliDt
p
ball
Joillta

4
Inc
t
Mil
a1
aNM
nt

laeomctl
adj
ma
tccriaI
pr

f
StMrbtloobuMb
IrtJlptooaptorcohuMbcalor
aUalllipMd

I
na
UU
JobltJ
u1I
or
Joe

b
Proal
lrbtd
artap
or
116
4

L
sacu
1Il
frollt
lUlptlllioa

J
d
boolnallloo

t
It
Ill
wb
100II

L
StMdn
plr
mountiJl
both
100

m
ltleerina
I
U
om

II
SIlock
IblOl
WI
defoc
or
ItlOUfttinp
IGolC

0
ll
oIId
wbedJ
lmbllancedor
t
tu
l
lIImitltr
x
D

p
S
IIPIUioa
IPrInp
e
Ik
01
blOt

CII
IrUd
paDiq
Oft
Oft

r
aa
frllJlt
or
AlIPfaaoa
mbaIlpcd

llllproperobtriftJ
II
I
ma
P
l

f
Il
i
I
II
I
m

JtE
lIED1D

I
Inn
te
Ind
balln
t
ra

b
Inject
lIItln
nl

C
Lubnclte

4
Check
1
rifla
tOll
t
ry

e
djUlt
QOlTectly

I
djuttrelll
defe
t
pIrtI

Ti
ht
n
r
pllCe
joints

h
t
ilDtor
renc
bannp

i
Ttchtentoco
cttorqu

j
Tiaht
n
correct
torque

t
fiahten
con
ttO
lIe

I
Tiahtcn
correct
torque

m
Jlepl
c
om
putl

II
aepl
c
ith
nC

Ballonce
h

p
Rene
prinp

q
laJan
bnltct

r
lI
eaJian
Ull
Ielllllion
drio

TIghtenIng
Torques

LIB

engines
Three

speed
geabox
ENGINE

2
5
4
0

kgm
18
29
Ib
ft

0
3
0
4

kgm
8
13
IbJI

Ll
1
8

kgm
8
0
12
llbJt

1
6
2

5
kgm
12
18Ib
ft

I
I
1
8

kgm
8
0
12
llbJt

0
7
I
I

kgm
5
1
8
0

IbJt

17
2

lkgm
l2
15IbJI

7
0
12
0

kgm
51

87IbJI

0
8
1
0

kgm
5
8
7
2
IbJI

0
3
0
4

kgm
2
2
2
9Ib
ft

2
3

kgm
14
22IbJI

J
9
2
2

kgm
14
16IbJI
Gearbox
to

engine

Dust
cover

Front
cover

Rear
extension

Bottom
cover

Reverse
idler
shaft

Detent
ball

plug

Mainshaft
nut

Mainshaft

bearing
retainer

Speedometer
pinion
sleeve

lock

plate

Reverse

lamp
switch

Control
lever
nut
Cylinder
head
bolts

1st

stage

2nd
stage

3rd

slage
4
0

kgm
28
9Ib
ft

6
0

kgm
43
4lb
ft

6
5
8
5

kgm
47
0
61
5

Ib
ft

Connecting
rod

big
end
nuts

Ll4
Ll8

engines

Ll6

engine

Flywheel
bolls

Main

bearing
cap
bolts

Camshaft

sprocket
bolt
4
5
5
5

kgm
33
40
Ib
fl

3
2
3
8

kgm
23
27
lb
ft

14
16

kgm
l01
106Ib
ft

4
5
5
5

kgm
33
40Ib
ft

12
16

kgm
86
8
116IbJt

0
6
0
9

kgm
4
3
6

5IbJt

I
I
1
5

kgm
8
0
10
8

Ib
fl

2
3

kgm
14
5
21
7Ib
ft

5
6

kgm
36
43
Ib
ft

0
6
0
9

kgm
4
3
6
5
Ib

ft

12

16kgm
86
8
115
7

IbJt
LIB

engines
Four

speed
gearbox
Oil

sump
bolts

Oil

pump
bolts

Oil
drain

plug

Rocker

pivot
locknuts

Camshaft

locating
plate
bolts
2
5
4
0

kgm
18
29

IbJt

0
8
1
0

kgm
5
8
7
2Ib
ft

Ll
l

7kgm
8
12IbJt

Ll
I

7kgm
8
12Ib
ft

3
3
44

kgm
24
32IbJI

1
7
2
1

kgm
12
15

IbJt

2
3

kgm
14
22Ib
ft

0
5
0
7

kgm
3
6
5
IlbJI

0
8
I
I

kgm
5
8
8
0Ib
ft

0
8
Ll

kgm
5
8
8
01b
ft

0
8
1
0

kgm
5
8
7
2Ib
ft
Gearbox
to

engine

Dust
cover

Front
cover

Bottom
cover

Rear
extension

Detent
ball

plug

Reverse

lamp
switch

Lower
bracket
bolt

Shift
rod
nut

Cross
shaft
bracket
bolt

Gear

change
lever

mounting
bolt
Crankshaft

pulley
nut

Outch

mounting
bolts

L14
Ll6

Ll8
2
4
2

6kgm
174
18
8

Ib
ft

1
6
2
2

kgm
12
16Ib
fl

PROPELLER
SHAFf
AND
DIFFERENTIAL

GEARBOX

17

20kgm
l22
145IbJI

14
17

kgm
101
123Ib
ft

13
20

kgm
94
145Ib
fI
Drive
pinion
nuts
Saloon

Drive

pinion
nuts

Estate
car

Drive

pinion
nuts
Van
Ll4
and
L16

engines
Three

speed
Gearbox

Rear
extension
to
case

bolts
2
8
4
4

kgm
20
32lb
ft

Gearbox
10

engine
2
5
4
0

kgm
18
29Ib
fI

Bnttom
cover
L1
1
7

kgm
8
0
12
3
lb

ft

Ll
1
7

kgm
8
0
12
3
lb

fl

3
5
5
0

kgm
25
3
36
2

Ib
ft

1
8
2
1

kgm
13
0
15
2

Ib
ft

2
4

kgm
14
5
29
Ib
ft

0
7
L1

kgm
5
1
8
0
lb

ft

0
7
Ll

kgm
5
1
8
0
lb

fl

9
11

kgm
65
1
79

51b
ft
Crown
wheel
bolts

1400
and
1600

cc
Saloon

1400
and
1600
cc
Eslale

1800ce
Saloon

I800cc
Estate

1800cc
Van
7
8

kgm
51
58Ib
ft

4
8
5
5

kgm
35
40
Ib
ft

7
8

kgm
51
58Ib
ft

7
8

kgm
51
58Ib
ft

4
8
5
5

kgm
35
40
Ib
ft

0
9
1
2

kgm
6
5
8
7Ib
ft

1
9
2
6

kgm
13
7
18
8

IbJI

1
9
2
6

kgm
13
7
18
8

Ib
f
Front
cover

Drain

plug

Selector
lever
bolts

Side
retainer
bolts
Saloon

Drive

flange
bolts
Saloon

Reverse

lamp
switch

Idler
shaft

screw

Rear
cover
bolts

Cross
shaft
lock

pin

Final
drive
to

mounting
member

1400
and
1600cc
models
6
8

kgm
43
4
57
8IbJI

1800cc
models
5
7

kgm
36
2
50
6Ib
fI

Final
drive
to

suspension
member
6
7

kgm
43
4
51
0
Ib
ft

Final
drive
to
drive
shafls
5
6

kgm
36
431b
ft

Final
drive

flange
to

propeller
shaft
1
6
2
4

kgm
12
17
Ib
ft

Final
drive

flange
to

propeller

shaft
Eslale
1
6
2
4

kgm
l2
17Ib
ft

Mainshafl
locknut

Ll4
and
L16

engines
Four

speed
gearbox

Rearexlension
to
case

bolts
1
6
2
5

kgm
12
18Ib
ft

Gearbox
to

engine
2
5
4
0

kgm
18
29Ib
ft

Bottnm
cnver

L1
1
8

kgm
8
13
Ib
ft

Fronl
cover
L1
1
8

kgm
8
13
IbJI

Drain

plug
3
5
5
0

kgm
25
3
36
2

Ib
f

2
4

kgm
14
5
28
9IbJt

9
11

kgm
65
1
79
5Ib
ft
Final
drive

flange
to

propeller

shaft

l800cc
610

only
Reverse

lamp
switch

Mainshaft
nut
2
0
2
7

kgm
14
5
19
5
lb

ft

4
6

kgm
29
43
Ib
ft

Oil
drain
and
flller

plug
Saloon

129

GIS

DESCRIYfION

ENGINE
Removal
and
Installation

ENGINE
MOUNTING

INSULATORS

ENGINE

Dismantling
Inspection
and
Overhaul

CHAMSHAFT

AND
CAMSHAFT
BEARINGS

CYLINDER
BLOCK

PISTONS

CONNECTING

RODS

CRANKSHAFT

ENGINE

Assembling

VALVE
CLEARANCE

Adjusting

DESCRIYfION

The
G
18

engine
is
a
short

stroke
unit
with
a

displacement

of
1
815
ce
The
aluminium

alloy
cylinder
head
has
cross
flow

ports
and
a
V

shaped
valve

layout
The

single
overhead
camshaft

is
driven
from
the
crankshaft

by
a
double
row
roller
chain
at
a

reduction

ratio
of
2
I

The
crankshaft
is
a

carbon
steel

forging
and
is

provided

with
five
main

bearings
and
four

balancing
weights
Aluminium

thrust

bearings
are
located
at

the
No
2

journal

The
cast
aluminium

alloy
pistons
have
two

comp
ression

rings
and
one
oil

ring
Gudgeon

pins
are

fully
floating
in
the

piston
bores
and
are

equipped
with

circlips
at

each
end
to
limit

the
amount

of
their
travel
The

forged
steel

connecting
rods

have
weight
adjusting
bosses
at
both

large
and
small
ends
to

insure
that
the
rods
are

correctly
balanced

during
operation

The

lubricating
system
is
of

the

pressure
feed

type
with

the
oil

pump
driven

by
a

gear
on
the
crankshaft
Oil
is
delivered

to
the
main

gallery
via
a
full
flow
ftlter

ENGINE
Removal
and
Installation

Although
the

engine
can
be
removed
as
a

single
unit
it

will

prove
an
easier

operation
to
remove

the

engine
with
the

transmission
Proceed
as
follows

Fit
the
engine
slingers
ST49760000
to
the

engine

Disconnect
the
battery
cables
and
lift
out

the

battery

Drain
the
coolant
and

engine
oil

2
Place

alignment
marks
on
the
bonnet
and

hinges
remove

the
bonnet
from
the
vehicle

3
Remove
the
blow

by
hose
from
the
rocker
cover
and
take

off
the
air
cleaner

4
Disconnect
the
accelerator

linkage
and
choke
cable
from

the
carburettor

S
Detach
the

upper
and
lower

radiator
hoses
remove
the

two
brackets
from
the
core

support
and
lift
the
radia
tor

away
from
the
vehicle
The

torque
convertor

oil

pipes
must

be
disconnected
from
the
oil
cooler
if
the
vehicle
is

equip

ped
with
automatic
transmission
Detach
the
fuel

pipe
if

fitted
from
the
engine
and

heater
hose

6
Disconnect
the
electrical

wires
from
the
alternator
thennal
EngIne

OIL
PUMP

OIL
PRESSURE
RELIEF
VALVE

OIL
FILTER

EMISSION
CONTROL
SYSTEM

IGNITION

TIMING
AND
IDLING
SPEED

Emission

control

system

EMISSION
CONTROL
SYSTEM
Maintenance

IGNITION
SYSTEM

IGNITION
TIMING

IGNITION
DISTRIBUTOR
Maintenance

SPARKING
PLUGS

transmitter
the

primary
side
of
the
distributor
oil

pressure

switch
starter

motor
and
reverse

light
switch

7

Remove
the
clutch
slave

cylinder
and
its
return

spring
from

the
transmission
as
described
in
the
section
CLUTCH

8
Disconnect
the
shift
rods
and
selector
rods
then
remove

the
cross
shaft

assembly
by
detaching
the
bracket
from

the
side
member
See
GEARBOX
section

9
Disconnect
the

speedometer
cable
and
detach
the
front

exhaust

pipe
from
the
exhaust
manifold

10
Disconnect
the

propeller
shaft
and

plug
the

gearbox
rear

extension
to

prevent
the
loss
of
oil

11
Jack

up
the

gearbox
slightly
and
remove
the
rear

engine

mounting
support
Take
out

the
bolts
which
secure
the

front

mounting
insulators
to
the
cross
member

12
Attach
chains
or
wire

rope
to
the

engine
Gradually
lower

the

jack
under
the

gearbox
and
carefully
lift
and
tilt
the

engine
and
gear
box
to
clear
the

compartment
Withdraw

the
unit

making
sure

that
it
does
not
foul
the
accessories

Installation
is
a
reversal
of
the
removal

procedure
RefIll

with
the
correct

quantities
of
oil
and
coolant
when
the

engine
is
installed

ENGINE
MOUNTING
INSULATORS

Replacing

The

front
and
rear

mounting
insulators
should
be
checked

with
the

engine
installed
to
make
sure
that
the
dimensions

conform
with
those

given
in

Figs
A
I
and
A
2

To
remove
the
front
insulator

proceed
as
follows

Position
a

jack
under
the
oil

sump
Make
sure
that
the

jack
is
clear
of
the
drain

plug
and
insert
a
wooden
block
between

the
jack
and

sump
to

prevent
the

sump
from

being
damaged

Remove
the
bolts

securing
the
insulator
to
the
front

suspension

member
and
the
nut

attaching
the
insulator
to
the

engine

mounting
bracket
Raise
the

jack
slightly
and
remove
the

insulator
To
remove
the
rear

mounting
insulator

proceed
as

follows

Position
a

jack
to
take
the

weight
of
the

gearbox
and
take

out

the
bolts

connecting
the
insulator
to

the
transmission
rear

extension

housing
Remove
the
bolts

attaching
the
cross
member

to

the
underside
of
the

body
and
withdraw
the
insulator

Installation

of
both
insulators

is
a
reversal
of
the

removal

procedures

S3

inter
l
iIJ

1lJLW

Fig
A
5

Removing
the
oil

pump
sprocket

y

x

A
S

AB10

a
1
yZ
rt

f

1
D

v
J
r
totl

35
0
1

v
J

v

0
d

3101
1

b
380

g
1

e

410

8
3
a

340
g
3

Fig
A
6

Lm
g
the
valve
seats

11

n
PILOT
BEARING

L

I
I

1
c

t

l

Fig
A
7

Measuring
the
ctankshaft

journals
and

crankpins
Fig
A

g

Removing
the
main
drive
shaft

pilot
hearing

16mm

0
236
in

PILOT
BEARING

Apply

grease

Fig
A
9

Fitting
the
main
drive

shaftpilot
hearing
Fig
A
11
Camshaft
and
camshaft
bracket

alignment
marl
s

i

IRScIItIon
Olrllole

ton
front
r
or
tM

rocbr
ft
IIWI

e
No
a

I

j
OIM

kImIII
roa
lIfIaft
oiIl
1or
nshclwn

in
tM

fil
In

Fig
A
lO
the

rocker
shaft

assembly

54

ENGINE

Dismantling

Remove

the

engine
from
the
vehicle
as

previously
described

and

carefully
clean
the
exterior

surfaces
The
alternator

distribu

tor

and
starter
motor
should
be
removed
before

washing
Plug

the
carhurettor

air
horn
to

prevent
the

ingress
of

foreign
matter

Place
the

engine
and
transmission
on

the
engine
carrier
ST4797

0000
if

available
and
dismantle
as
follows

Remove
the

gearbox
from
the

engine
Disconnect
the
intake

manifold

water
hose
the
vacuum

hose
and
the
intake
manifold

to
oil

separator
hose
Remove
the
intake
manifold
with
the

carburettor
Fit
the

engine
attachment
ST3720OG18
to
the

cylin

der
block
and

place
tre

engine
on
the
stand
ST371
00000

Remove
the
clutch

@
Ssembly
as
described
in
the
section

CLUTCH
Remove
the
exhaust
manifold
and
heat
baffle

plate

Take
off
the
fan
blades
and
remove
the
water

pump
pulley
and

fan
belt
Remove
the
rocker
cover
hose
manifold
heat
hose
and

by
pass
hoses

Remove
the

generator
bracket
and
the
oil
fIlter
Extract
the

engine
breather

assembly
from
above
Note
that
the
breather

is
fitted
to
the

guide
and
is
installed
with
a
O

ring
which
is

pressed
into
the

cylinder
block

Flatten
the
10ckwasher
and
unscrew
the
crankshaft
pulley

nut
Withdraw
the

pulley
with
the

puller
ST44820000
if
available

but
do
not
hook
it
in
the
V

groove
of
the

pulley

Remove
the
rocker
cover
and
take
off
the
rubber

plug

located
on
the
front
of
the
cylinder
head

Straighten
the
lock

ing
washer
and
remove
the
bolt

securing
the

distributor
drive

gear
and
camshaft

sprocket
to
the
camshaft
Remove
the
drive

gear
and
take
off
the

sprocket
See

Fig
A
3

Remove
the

cylinder
head
bolts
in
reverse

order
to
the

tightening

sequence
sOOwn
in

Fig
A
18
and
lift
off
the

cylinder

head
as
an

assembly
See

Fig
A
4
Note

that
in
addition
to
the

ten

cylinder
head
bolts
there
are
also
two
bolts

securing
the

chain
cover
to

the
head
Invert
the

engine
and
remove
the
oil

sump
Remove
the
chain
cover
and
oil

flinger
Take
off
the
nut

securing
the
oil

pump
sprocket
and
withdraw
the

sprocket
with

the
chain
in

position
as
shown
in

Fig
A5
Remove
the
oil

pump

and
stramer
Note

that
two
of
the

pump
mounting
bolts
are

pipe
guides

Remove
the

timing
chain
crankshaft

sprocket
chain
ten

sioner
and
chain

stop

Remove
the

connecting
rod

caps
and

push
the

piston
and

connecting
rod
assemblies

through
the
tops
of
the
bores

Keep

all

parts
in
order
so

they
can
be
assembled
in
their

original
posi

tions

Take

out
the

flywheel
retaining
bolts
and
withdraw
the

flywheel
Remove
the
main

bearing

caps
but
take
care
not
to

damage
the

pipe
guides
Lift
out

the
crankshaft
and
main
bear

ings
noting
that
the

bearings
must
be
reassembled
in
their

original

positions
Remove
the

piston
rings
with
a
suitable

expander
and

take
off
the

gudgeon
pin
clips
The

piston
should
be
heated
to

a

temperature
of
50
to
600
122
to
1400F
before

extracting

the

gudgeon
pin
Keep
the
dismantled

parts
in
order
so

they

can
be
reassembled
in
their

original
positions

Remove
the
camshaft
rocker
ann
shaft
and
rocker
ann

assemblies
from
the

head

by
taking
off
the
cam

bracket

clamp

ing
nuts
It
is
advisable
to
insert
disused
bolts
in
the
No
1

and

No
5
bracket
holes
as
the
cam
bracket
will
fall
from
the
rocker

ann
shaft
when

it
is
removed
Remove

the
valve

cotters

using

the

special
tool
ST47450000

and
dismantle
the
valve
assemblies
Keep
the

parts
together
so

they
can
be
installed
in
their

original

order

ENGINE

Inspection
and
Overhaul

Cylinder
head
and
valves

Inspection
and
overhaul

procedures
can

be
carried
out

by

following
the
instructions

previously
given
for
the
L14
LI6

and
LIB

engines
noting
the

following
points

Measure
the

joint
face
of
the

cylinder
head

using
a

straight

edge
and
feeler

gauge
The

permissible
amount
of
distortion
is

0
03
mm
0
0012
in
or
less
The
surface
of
the
head
must
be

reground
if
the
maximum
limit
of
0

1
mm

0
0039
in
is

exceeded

Oean
each
valve

by
washing
in
petrol
then

carefully
examine

the
stems
and
heads
Discard

any
valves
with
worn

or

damaged

stems
Use
a

micrometer
to
check
the
diameter
of
the
stems

which
should
be
8
0
mm
0
315
in
for
both
intake
and
exhaust

valves
If

the
seating
face
of
the
valve
is

excessively
burned

damaged
or
distorted
the
valve
must
be
discarded
The
valve

seating
face
and
valve

tip
can
be
refaced
if

necessary
but

only

the
minimum
amount
of
metal
should
be
removed
Check
the

free

length
and
tension
of
each
valve

spring
and

compare
the

figures
obtained
with
those

given
in
Technical
Data
at
the
end

of
this
section
Use
a

square
to
check
the

springs
for
deformation

and

replace
any
spring
with
a
deflection
of
1
6
mm
0
0630
in

or
more

Valve

guides

Measure
the
clearance
between
the
valve

guide
and
valve

stern
The
stem
to

guide
clearance
should

be
0
025
0
055
mm

0
0010
0
0022
in
for
the
intake
valves
and
0
04
0
077
mm

0
0016
0
0030
in
for
the
exhaust
valves
The
maximum
clear

ance

limit
is
0
1
mm
0
0039
in
The
valve

guides
are
held
in

position
with
an
interference
fit
of
0
040
0
069
mm
0
0016

0
0027
in
and
can
be
removed

using
a

press
and
valve

guide

replacer
set
ST49730000
under
2
ton

pressure
This

operation

can

be
carried
out
at
room

temperature
but
will
be
more
effec

tively

performed
at
a

higher
temperature
Valve

guides
are

available
with
oversize
diameters
of
0
2
mm
0
0079
in
The

cylinder
head
guide
bore
must
be
reamed
out
at

normal
room

temperature
and
the
new

guides
pressed
in
after

heating
the

cylinder
head
to
a

temperature
of

approximately
800
C
1760F

The
standard
valve

guide
requires
a
bore
of
14
0
14
018
mm

0
551
0
552

in
and
the
oversize
valve

guide
a
bore
of
14
2

14
218
mm
0
559
0
560
in
Ream
out
the
bore
of
the

guides

to
obtain
the
desired
finish
and
clearance
Use
the
reamer
set

ST49710000
to

ream
the
bore
to
8
000
8
015
mm
0
3150

0
3156
in
The
valve
seat

surface
must

be
concentric
with
the

guide
bore
and
must
be
corrected
if

necessary
using
the
new

valve

guide
as
axis

Valve
seat
inserts

Check
the
valve
seat

inserts
for

signs
of

pitting
The

inserts

cannot
be

replaced
but

may
be
corrected
if

necessary
using
a

valve
seat
cutter

ST49720000

Scrape
the
seat

with
the
450

cutter
then

reduce
the
width
of
the

contacting
faces

using
the

150
and
600
cutters
for
the
intake
valve
inserts
and
150
cutter

for
the
exhaust
valve
inserts
Seat
correction
dimensions
are

shown
in
millimeters
in

Fig
A
6

Lap
each
valve
into
its
seat
after

correcting
the
seat
inserts

Place
a
small

quantity
of
fme

grinding
paste
on

the

seating
face

of
the
valve

and
lap
in
as

previously
described
for
the
Ll4
LI6

and
L
18

engines

S5

inter
lliJ
i

@
j2J

c
Arrow
m
lrk

J

II
J

Fig
A
13

Installing
the

gudgeon
pin
circlip

Fig
A
12

Assembling
11

piston
and

connecting
rod

Fig
A
14
Installing
the

cylinder
block
oil
se
l
Apply
liquid
packing
he
e

Fig
A
IS
Rear
be

ring
cap

9
3
6
8

r

r
Q
i

ig
JtJl
f
it

I

1
f

l
O

2

1

lJ@O
j
0

i4i

Front
o

7
5
2
4

10

Fig
A
16
Connecting
rod

caps
and
lock
wIshers
Fig
A
18

Cylinder
head
boils

lightening
sequence

Fig
A
19

Imta1ling
the

ignition
distn1
utOT
note

the

position
of
rotOf

56
Fig
A
20

Tensioning
the
oil

pump
drive
dlain

CAMSHAFT
AND
CAMSHAFT
BEARINGS

Check
the
camshaft

bearing
and

journals
for

signs
of
wear

Plastigage
should
be

used
to

check
the
clearance
between
bear

ing
and

journal
which
should
be
0
025
0
075
mm
O
OOl

0
0030
in

The

cylinder
head

assembly
must
be
renewed
if
the

wear

limit
of

0
mm
0
0039
in

is
exceeded

Place
the
camshaft
in
V
blocks
and

apply
a

dial

gauge

to
the
centre

journal
to
check

the
amount
of

camshaft
bend

The

run
out

of
the
camshaft
must
not
exceed
0
03
mm
0
0012

in
It
should
be
noted
that

the
actual
run
out
will
be
half
the

value
indicated
on
the
dial

gauge
when
the
camshaft

is
turned

one

full
revolution
Check
the
camshaft
end

play
which
should

be
within
0
07
0
148
mm
0
0028

0
0058

in

Check
the
earn

contacting
surfaces
of
the
valve
rocker
and

the
earn
heels
of
the
camshaft

Slight

damage
can
be
corrected

using
a
fine
oil
stone
It
is
advisable
at
this

stage
to

check
the

clearance
of

the
rocker
shaft
and
rocker
bushes
which
should
be

0
016
0
052
mm
0
0006
0
0020

in
The

parts
must

be
renewed

if

the
wear

limit
of
0
07
mm

0
0028
in
is
exceeded

CYLINDER

BLOCK

Inspection
and
Overhaul

Check
the
block
for

signs
of
cracks
or
flaws
Measure
the

joint
face
for
distortion

using
a

straight

edge
and
feeler
gauge

as

described
for

the
L14
Ll6
and
L18

engines
The
surface

must

be

reground
if
the
maximum
limit
of
0
10
mm
0
0039
in

is
exceeded

Check
the

cylinder
bores
for
wear
out

of
round
and

excessive

taper
Use
a
bore

gauge
to
take

readings
at
the

top

middle
and
bottom

positions
of
the
bore
as

previously
described

The
standard
bore
diameters
are

85
000
mm
0
035
0
mm

3
347
0
0014
0
in

with
a
wear
limit
of
0
2
mm
0
0079
in

Out
of
round
and

taper
must
not
exceed
0
02
mm
0
0008
in

If

any
of

the
bores
are

worn
or
in
excess
of
the

specified
limi
t

then
all
bores
must
be
rebored
at
the
same
time

Pistons
are

available
in
five
oversizes
and
should
be
selected

in
accordance
with
the
amount
of
wear
of
the

cylinder
Refer

to

the
instructions

given
for
the
Ll4
L16
and
L18

engines
and

select

pistons
from
the
table
below

PISTON
SIZE

Standard

250
5

500
5

750
S

1000
S

1250
S
OUTER
DIAMETER

84
958
84
990
mm
3
345
3
346

in

85
220
85
240
mm

3
355
3
356
in

85
470
85
490
mm
3
365
3
366

in

85720
85
740
mm
3
375
3
376
in

85
970
85
990

mm
3
3846
3
3854

in

86
220
86
240
mm
3
394
3
395
in

Cylinder
liners
can

be
fitted
if
the
bores
areworn

beyond

the
maximum
limit
Undersize
liners
are
available
with
outer

diam
ters
of
89
091
89
126

mm
3
507
3
509
in

and
inner

diameters
of
83

5
84
5
mm

3
287
3
327

in
The
liners
are

an

interference
fit
in
the
block
and
must
be
rebored
after

fitting

PISTONS

Checking

Oteck
the

pistons
for

signs
of
seizure
and
wear

measure

the
side
clearance
of
the

rings
in
the

ring
grooves
and
check

the

piston
ring
gaps
as

previously
described
for
the
L14
Ll6
and

Ll8

engines
Compare
the

figures
obtained
with
those

given
in

the
tables

opposite
Side
clearance
in

grooves

Top

ring

Second

ring

Oil

ring
Standard

0
04

0
08
mm

0
0016
0031
in

0
02
0
06
mm
0
0008
0

0024
in

0
02

0
06
mm
0

0008
0
0024
in

Limit

LO

mm
0
0039
in

LO
mm

0
0039
in

LO

mm
0
0039
in

Piston

ring

gap
Top
ring

Second

ring

Oil

ring

Top

ring

Second

ring

Oil

ring
Standard

0
35
0
55
mm
0
01

38
D
021
7
in

0
3
5
mm
0
0138
0
0197

in

0
35
55

mm
O
oJ38

0217

in

Limit

LO
mm

0
0394
in

LO
mm
0
0394

in

LO
mm

0
0394
in
Top

ring

Second

ring

Oil

ring

Measure
the
outer
diameter
of
the

gudgeon
pin
in
relation

to
the
hole
diameter
in

the

piston
Compare
the

figures
obtained

with
those

given
in
Technical
Data
and

replace
the

piston
and

pin
if
the
wear
limit
is
exceeded

CONNECTING
RODS

Checking

Check
the

connecting
rods
for
bends
or

twists

using
a

suit

able

connecting
rod

aligner
The
maximum
deviation
should
not

exceed
0
05
mm
0
0020
in

per
100
mm
3
94

in
of
rod

Straighten
or

replace
any
rod
which
does
not

comply
with
the

specified
limit
When

renewing
a
rod
make

sure
that
the

weight

difference

between
new
and
old
rods
in
within
6

gr
212
oz

Install
the

connecting
rods
with

bearings
to

the
correspond

ing
crank

pins
and
check

that
the
end

play
of
the

big
ends
is

between
0
10
0
246
mm
0
0043
0
0097
in

Replace
the

appropriate
rod
if

the
maximum
limit
of
0
3
mm
0
0118

in

is
exceeded

CRANKSHAFT

Inspection
and
Overhaul

Clean
the

crankshaft

thoroughly
and
check
the

journals

and
crank

pins
for

taper
and
out
of
round
Use
a

micrometer
to

measure
the

journals
and

crankpins
at
the

positions
shown
in

Fig
A

7
It
will

be

necessary
to

regrind
the
crankshaft
if
the

specified
limit
of
0
03
mm
0
0012
in
is

exceeded
and
then

fit

the

appropriate
undersize

bearings
Place
the
crankshaft
in

V

blocks
as
described
for
the
L14
L16

and
LIB

engines
and

apply
a

dial

gauge
to
the
centre

journal
to
check

that
the
bend

limit

of
0
05
mm

0
0020
in
is
not

exceeded
The
actual
bend

value
will
be
half
the

reading
obtained
on

the
gauge
Install
the

crankshaft
in
the

cylinder
block
and
check
the
crankshaft
end

float
which
should
be
0
060
0
192
mm

0
0024
0
0076
in

Replace
the
centre

shims
if
the

specified
figure
is
exceeded

Make
sure
that
the

main
drive
shaft

pilot
bearing
at

the
rear
of

the
crankshaft
is
not
worn
or

damaged
in

any
way
Remove

the

bearing
if

necessary
using
the

special
tool
ST49700000
as

shown
in

Fig
A
8
Clean

the

bearing
hole
oil
the
outer

side
of

the
new

bearing
and
use
a
drift
as
shown
in

Fig
A
9
to

drive

it
into
the
hole
Insert

2

grams
0
07
oz

of
multi

purpose
grease

into
the
hole
as
illustrated

Main

bearing
clearance

Check
the
main

bearing
clearances

as
described
for

the

Ll4
Ll6

and
Ll8

engines
The

Plastigage
should
be

placed
so

57

inter
ill
j

@
j2

J

CHAIN
TENSIONER
CA

SPROCKET

TIMING

MARK

AOJUSTING

SCREW

OIL
JET

CHA
N
GU
DE

CRANK
SPROCKET

Fi3
A
17

TiminS
Jsm

Ai
m

I

Jjr

c
rtIuNtor
t

1

I

I
II

I
Y
uum

ing
Ii

Antl

b
cktire

ChedC

s
p
cialellibnt8d
AI
llJ
ion
nOzzle

Fig
A
23
Details
of
the
exhaust
emission
control

system

58