DATSUN PICK-UP 1977 Workshop Manual

r

28
Remove

cylinder
head

assembly

Use

Cylinder
Head
Bolt
Wrench

STl0120000
to

remove

cylinder
head

bolts
Loosen
bolts

from

CD
to

@
as

shown
in

Figure
EM
18

Fig
EM
IS

Cylinder
head
bolt

loosening
equence

Notes
When

removing
cylinder
heao

from

engiJJe
installed

on
car
follow

the

instructions
below

a
Turn
crankshaft

until
No
I

pilton

is
at
T
D
C

on
its

compression

stroke

b
Remove

rocker
Cover
and
fuel

pump

c
To
facilitate

assembling
o
tion

scribe
8
mark

on

timing
c
8in

and

camshaft

sprocket
with

paint
be

fore
removal

d
Loosen
camshaft
bolt

and
remove

fuel

pump
drive
earn

e

Support
timing
chain

by

utilizing

Chain

Stopper
STl7420001
bet

ween

timiilg
chains
as
shown
in

Figure
EM
19

This
0

peration
eliminates

the

prob

lem
of

realigning

timing
marks

on

timing
chain
and
crankshaft

sprocket

EM538

Fig
EM
19

Supporting
timing
chain

f

Remove
camshaft

sprocket

g
Loosen

cylinder
head
bolts

and

remove

cylinder
head
Engine
Mechanical

29
Invert

engine

30

Remove
oil

pan
and

oil
strainer

EM094

Fig
EM
20

Removing
oil
traintir

and
oil

pump

31

Remove
oil

pump
and
its
drive

spindle
See

Figure
EM
20

32
Remove
front
cover

33

Remove
chain
tensioner

and

chain
slack
side

guide

EM095

Fig
EM
21

Removing
chain
ten
ioner

and
tim

ing
chain

34
Remove

timing
chain

See

Figure
EM
2l

35
Remove

oil
thrower
crankshaft

wonn

gear
and

chain
drive

sprocket

Fig
EM
22

Removing
chain
drive

Proc
et

EM
6
36
Remove

piston
and

connecting

rod

a

mbly
Extract

connecting
rod

bearings
keeping
them
in
order

I

Fig
EM
23

Removing

pilton
and

connecting
rod
aat
m
b

y

37

Remove

flywheel
and

rear

plate

Be

careful
not

to

drop
them

EM415

Fig
EM

24

Removing
flywheel

38
Remove
main

bearing
caps

Use
Crankshaft

Main

Bearing

Cap

Puller
KVIOI04ISO

to
remove
center

and
rear

main

bearing

caps
Keep
them

in
order

KVIOI04IS0

EM539

Fig
EM
25

Removing
rear

main

bearing

cap

39

Remove
two
side
seals
from

rear

main

bearing
ca

p

40
Remove
rear
oil

seal

EM103

EM411

Fig
EM
29

Remouingpi
tonpin

Fig
EM
26
Remouing
rear
oil
eal

41
Remove
crankshaft

42
Remove
baffie

plate
and
cyl

inder
block
net

Fig
EM
27
Removing
baffle
plate
and

nel

PISTONS
AND

CONNECTING
RODS

Remove

piston
rings
with
a

ring

remover

O

EM102

Fig
EM
28

Removing
pilton
rings

2
Press

piston
pin
out
with
Piston

Pin
Press
Stand
STl3030001
Engine
Mechanical

3

Keep
disassembled

parts
in
order

CYLINDER

HEAD

I

Remove
valve
rocker

springs

Loosen
valve

rocker

pivot
lock
nut
and

remove
rocker
arm

by
pressing
valve

spring
down

Fig
EM
3D

Removing
rockerarrm

2

Remove
locate

plate
and
remove

camshaft

EM105

Fig
EM

31
Remouing
cammaft

EM
7
Note
Be

careful
not
to

damage
eam

shaft

bearings
and
earn
lobes

3
Remove

valves

using
Valve
Lifter

STl2070000

STl2070000

Fig
EM
32

Removing
ualves

Notes

a
Take

care
not
to
lose
valve

spring

seat
oil
seal
valve
collet

and
valve

rocker

guide

b
Be
sure

to
keep
camshaft

bearings

intact

or
the

bearing
center
is

liable

to
come
out
of

alignment

61

8

Exhaust
Intake
EM101

Fig
EM
33
Value
components

r

Engine
Mechanical

INSPECTION
AND
REPAIR

PREPARATION
FOR
INSPECTION

CYLINDER
HEAD
AND
VALVE

CHECKING
CYLINDER
HEAD
MATING

FACE

VALVE
ASSEMBLY

VALVE
SPRING

ROCKER
ARM
AND
VALVE

ROCKER

PIVOT

VALVE
GUIDE

VALVE
SEAT
INSERTS

CAMSHAFT
AND
CAMSHAFT

BEARING

CAMSHAFT

BEARING
CLEARANCE

VALVE
TIMING

CAMSHAFT
ALIGNMENT

CYLINDER
BLOCK

HOW
TO
MEASURE

CYLINDER
BORE

CYLINDER

BORING

PREPARATION
FOR

INSPECTI
N

I

Before

cleaning
check

for

signs

of
water

and
oil
leaks
in

cylinder
block

and

head

2
Clean
oil
carbon

deposits
and

sealant
from
an

parts
Remove

gasket

3
Clean
all

oil
holes
with
solvent

and

dry
with

compressed
air

Make

sure
that

they
are

not
restricted

CYLINDER
HEAD

AND
VALVE

CHECKING
CYLINDER

HEAD

MATING
FACE

EM407

Fig
EM

34
Cylinder
head
CONTENTS

EM
8

EM
B

EM
8

EM
8

EM
9

EM
lO

EM
l0

EM
11

EM

12

EM
12

EM
12

EM
13

EM

13

EM
13

EM
14
PISTONS
PISTON
PINS
AND

PISTON
RINGS

CONNECTING
ROD

CRANKSHAFT

BUSHING
AND
BEARING

MEASUREMENT

OF
MAIN

BEARING

CLEARANCE

MEASUREMENT
OF

CONNECTING
ROD

BEARING
CLEARANCE

FITTING

BEARINGS

MISCELLANEOUS
COMPONENTS

CRANKSHAFT
AND

CAMSHAFT

SPROCKETS

CHAIN

TENSIONER
AND
CHAIN

GUIDE

FLYWHEEL

FRONT
COVER
AND

REAR
OIL
SEAL

Note

Never

remove
camshaft
bear

ings
unless

you
have
a

Suitable

machine

or

boring
Camshaft
bear

ing
in
line
If

you
once
remove

camshaft

bearings
bearing
centers

will
come
out

o

alignment
reo

conditioning
is

very
difficult
with

out
center

borings

L
Make

a
v

isual
check
for
cracks

and
flaws

2

Measure
the
surface
of

cylinder

head
on

cylinder
block

side
for

warpage
If
it
is

found
to
be

beyond

the
limit

designated
below

regrind
the

affected
surface

with
a
surface

grinder

Fig
EM
35

Checking
cylinder
head

8JJrface

EM
8
Head
surface
flatnes

Standard

less
than
0
05

mm
0
0020
in
O
lmm

0
0039
in
EM
15

EM
16

EM
16

EM
17

EM
17

EM
1B

EM
18

EM
19

EM
19

EM
20

EM
20

EM
20

Maximum

VALVE
ASSEMBLY

Check
each
intake

and
exhaust

valve
for
worn

damaged
or
deformed

valve

caps
or
stems

Correct
or

replace

any
valve
that
is

faulty

2
Valve

face
or
valve
stem
end

surface

should
be
refaced
with
a
valve

grinder

10

L
I
I

I

EM109

Fig
EM
36
Intak
and

exhaust
valve

dimensions

Engine
Mechanical

Valve

head
diameter

I
In
42

0
to
42

2
1

654
to
1
661
VALVE
SPRING

H
1

Check
valve

spring
for

squareness

mm
in

Ex
35
0

to
35
2
1
378

to
1
386
using
a
steel

square
and
surface

plate

In
114

9
to
115
2
4
524
to

4
535
If

spring
is

out
of

square
more
than

Valve
length
1

6
mm
0

063
in

replace

L

mm
in
2

Measure

lhe
free

length
and
ten

Ex
1157
to

116
0
4
555
to
4
567

sion
of

each

spring
If
the

measured

Valve
stem
diameter
In
7
965

to
7

980
0
3136
to

0
3142
value
exceeds

specified
limit

replace

D

mm
in
spring

Ex
7
945

to
7

960
0
3128
to

0
3134

Valve
seat

angle
In
45030

a

Intake
and
Exhaust

Ex
45030

EM110

Fig
EM
37

Checking
valve
tern

diameter

Spring

specifications

Valve

spring
free

length

Intake

and
exhaust

Outer

Inner

Valve

spring
pressured

length

valve

open

Intake
and
exhaust

Outer

Inner

Valve

spring
assembled

height

valve

close

Intake
and
exhaust

Outer

Inner
EMll1

Fig
EM

38

Regrinding
valve

face

Note

When
valve
head
has
been
worn

down
to
0
5
nun

0
0197
in
in

thickness

replace
the
valve

Grinding
allowance
for

valve
stem

end
surface
is
0

5
mm
0
0197
in

or
less

mm
in

mmlkg
in
lb

mmlkg
in

lb

EM
9
I

i

J
T

EM112

Fig
EM
39

Measuring
spring
quareneu

1

EM113

Fig
EM

40
Measuring
apring
ten
ion

49
98
1

968

44

85
1
766

29
5
49
0
1
161

108

24
5
25
5
0
965156
2

40
0

21
3
1
575
47

0

35

0
12
3
1

378
27
I

rr

ROCKER
ARM
AND

VALVE
ROCKER
PIVOT

Check

pivot
head
and
cam
contact

and

pivot
contact
surfaces
of
rocker

arm
for

damage
or
wear
If

damage
is

found

replace
them
A

faulty
pivot

must
be

replaced
together
with
its

corresponding
rocker
arm

VALVE
GUIDE

Measure
clearance
between

valve

guide
and
valve
stem
If
clearance

exceeds

designated
limit

replace
worn

parts
or
both

valve
and
valve

guide
In

this

case
it
is

essential
to
determine
if

such
a

clearance
has
been
caused

by
a

worn
or
bent
valve

stem
or
by
a
worn

valve

guide

Stem
to

guide
clearance

mm
in

Maximum
limit

of
above

clearance

mm
in
Engine
Mechanical

Exhaust
8
3
to
8
5
dia

0

327
to
0
335

4
1

3
0

I2
J
L

12

223

to
12
234

150

0
4812

to
0
4817

dia

1

P
Intake

I
I

J

10
8
0

425

S9
0

2
323
7

6
to
7

8

0
299

to
0
307
dia

1

Unit
mm

in

EM572

Fig
EM
41

Se11Jice
value

guide

In
take

valve
Exhaust

valve

0
020
to

0
053

0
0008
to
0

002

As
an

emergency
expedient
a

valve

can
be

pushed
into
valve

guide
and

moved
to
the

right
and

left
If

its

tip

deflects

about
0
2

mm
0
0079
in

or

more
it
indicates
that
the
clearance

between
stem
and

guide
exceeds
the

maximum
limit
of
0
1
mm
0
0039

in

Note
Valve
should
be
moved
in

paral

lel
with
rocker
arm

Generally
a

large
amount
of
wear
occurs
in

this

direction

Max
allowable
deflection

0
2
mm
0
0079

in

n
r

C1r
30mm
l
18Iin

r

EM115

Fig
EM

42
Mea

uring
clearance

between
valve

tern

and
valve

gu
ide
0

040
to

0
073

0
00
6
to

0
0029

0
1
0
0039
Replacement
of

valve

guide

I

To
remove
old

guides
use
a

drift

and

a

press
under

a
2
ton

pressure
or

a

hammer

Drive

them
out

from

combustion

chamber
side

toward
rocker

cover

Heated

cylinder
head
will
facilitate

the

operation

2

Ream

cylinder
head
side

guide

hole
at

room

temperature

10
6

E
e

417
5t

0

m3l
lj
10
6

O
fl

H

dl7

l
IV

II

Unit
mm
in

EM116

Fig
EM

43
Valve

guide
hole

Guide

hole
inner

diameter
an
mm
in
For

factory
standard

valve

guide
11

985
to
11

996

0
4718
to
0
4723

For
service

valve

guide

3

Carefully
press
new
valve

guide

into

valve
so
that
it
will
fit

smoothly

after

heating
cylinder
head

to
150
to

2000C

302
to

3920
F

Valve

guide
of
0
2
mm

0

0079
in

oversize

diameter
is

available
for

ser

vice

as
indicated
above

Interference
fit
of
valve

guide
to

guide
hole

0
027
to

0
049
mm

0
0011
to
0

0019
in

4

Ream
bore
with

valve

guide

press

ed
in

using
Valve
Guide

Reamer
Set

KVIOI039S0

EM
10
12

185
to
12
96

0
4797
to

0
4802

Reaming
bore

8

000
to
8

018
rnm

0
3150
to
0
3157
in

EM419

Fig
EM

44

Reaming
valve

guide

q

1

I

k

k
lO

i

I

37

9
to
38
1

eel
1
492
to
1
500
dis

co

q

0

45
597
to
45
613

1
795
to
1
796
dia
5
Correct

valve
seat
surface
with

new
valve

guide
as
the
axis

VALVE

SEAT
INSERTS

Check
valve
seat
inserts
for

any

evidence

of

pitting
at
valve
contact

surface

and
reseat
or
replace
if
worn

excessively

Valve
seat
insert
of
0
5
mm
0
0197

in
oversize
is
available
for

service
as

shown
below

Intake

Unit
mm
in
Engine
Mechanical

Fig
EM
45

Correcting
valve
seat

EM573

0

32

6
1

2835
dia

Exhaust

I
I

30

U81
dia
17
5
0
295

Unit
mm

in
37
580
to
37

596
1
4795
to
1
4802
dia

Cylinder
head
rece
diameter

For

factory
standard

insert

Intake

For
service
insert

For

factory
standard

insert

Exhaust

I
For
service
insert

Interference

fit

mm
in
Intake

Exhaust
Fig
EM
46
Seroice
valve
seat
dimensions

Unit

mm

in

45
000
to

45
016
1

7717
to
1

7723

45
500
to
45
516
1

7913
to

I
7920

37
000
to
37
016
1

4567
to
I
4573

37
500
to
37
516
1

4764
to
I
4770

0
081
to
0
113
0
0032
to
0
0044

0
064
to
0
096
0
0025
to
0
0038

EM
11
Replacln
valve
eat
In
ert

1
Old
insert
can
be
removed

by

boring
it
out
until
it

collapses
The

machine

depth
stop
should
be

set

so

that

boring
cannot
continue
beyond

the
bottom
face
of
the
insert

recess
in

cylinder
head

2

Select
a
suitable
valve
seat
insert

and

check
its
outside
diameter

3
Machine

cylinder
head
recess
to

the
concentric
circles
in

valve

guide

center
so
that
insert

will
have
the

correct
fit

4
Heat

cylinder
head
to
a

tempera

ture
of
150
to
2000C
302
to
3920
F

5
Fit
insert

ensuring
that
it
beds
on

the

bottom
face
of
its

recess
and

caulk
more
than
4

points

6

Newly
fitted
valve
seats
should
be

cut
or

ground
at
the

specified
dimen

sions

as
shown
in

Figure
EM
47

7

Apply
small
amount
of
fine

grind

ing
compound
to
valve

contacting
face

and

put
valve
into

guide
Lap
valve

against
its
seat
until

proper
valve
seat

ing
is
obtained
Remove
valve
and
then

clean
valve
and

valve
sea
1

Intake
Engine
Mechanical

I

600

38
1

496I
dia

W
39
6
I
559Ildia

1
8
1

6457
dia

45
1
71l1

Unit
mm
in

Exhaust
30

30
1
l811
di

I
32

6
2835
dia

34
6
1
3622
dia

137

1
4567
dia

Unit
mm
m

CAMSHAFT
AND

CAMSHAFT
BEARING

CAMSHAnBEARING

CLEARANCE

Measure
inside
diameter
of
earn

haft

beating
with
an
inside
dial

gauge

and
outside
diameter
of
camshaft

jour

nal
with
a
micrometer
If
wear
is

found
inside
of

bracket

replace
cyl

inder
head

assembly
EM121

Fig
EM
47
Standard
value
aeat
dimensions

EM119

Fig
EM

48

Checking
cam

haft
bearing

Camshaft

journal
to

bearing
clearance

Standard
Wear
limit

Oil

clearance
mm
in
0
038
to
0
067

0
0015
to
0

0026
0
1

0
0039

Inner
diameter
of
earn

shaft

bearing
mm
in
48
000
to
48
016

1
8898
to
1
8904

EM

12
VALVE

TIMING

This

diagram

applies
to
all

cyl

inders
If

any
valve
is
found
out
of

specifications
one

possibility
that

carn
lobe
is

worn
or

damaged
This

calls
for

replacement
of
camshaft

B
D

C

EM421

Fig
EM

49
Value
timing
diagram

Standard

Camshaft
bend

mm
in
0

02
0
0008

CAMSHAFT

ALIGNMENT

I
Check
camshaft
camshaft

journal

and
earn
surface
for
bend
wear

or

damage
If

damage
is

beyond
limits

replace
affected

parts

2
A
bend
value
is
one
half
of
the

reading
obtained
when
camshaft
is

turned
one
full
revolution
with
a
dial

gauge

applied
to
2nd

and
3rd

journals

Standard

height

of
tam
mm
in
I
Intake

1
Exhaust

Wear

limit
of
earn

height
mm
in

Allo
able
difference
in

diam
ter

betweim
max
worn

and
min

mm
in

worn

parts
of
c

mshaft

journal
Engine
Mechanical

Bend
limit

0
05
0
0020

I

Fig
EM

50
Checking
camMa
t
bend

40
30
to
40
35

1

5866
to
1
5886

0
25
0

0098

0
05
0
0020

Maximum
tolerance
in

j01
irri

mm
in
0
1

0
0039

diameter

CamShaft
end

play
mm
in
0
08
to
0
38

0
0031
to
0
0150

Standard

Surface
flatness

mm
in
less
than

0
05
0
0020

Cy
LlNDER
BLOCK

I

Visually
check

cylinder
block
for

cracks
or
flaws

2
Measure

top
of

cylinder
block

cylinder
head

mating
face
for

warp

age
If

warpage
exceeds
limits
correct

it
Maximum
tolerance

0
10
0

0039

EM540

Fig
EM
51

Cheching
cylinder
block

au
rface

EM
13
j

Using
a
bore

gauge
measure
cyl

inder

bore
for
out
of
round
or

taper
If

out
of

round
or

taper
is
excessive

re

bore

cylinder
walls
with
a

boring

machine
Measuremen
t
should
be

taken

along
bores
for

taper
and
around

bores
for

out
of
round
See

Figure

EM
52

Qu
t
of
round

Taper
X

Y

A

B

M12

Fig
EM

52

Measuring
cylinder
bore

diameter

4
When
wear

taper
or

out
of

round

is
minor
and
within
limits

remove

step

at

topmost
portion
of

cylinder
using

a

ridge
reamer
or

other
similar
tool

HOW
TO
MEASURE

CYLINDER
BORE

A

bore

gauge
is
used
Measure

cylind
r
bore

at

top
middle
and
bot

tom

positions
toward
A
and
B
direc

tions

as
shown
in

Figure
EM
53

and

record
the
measured
values

A
I

120
0
79

IlL

60
2
36

lll

B

100
3
94

el
1

Unit
mm
m

EM
22

r

Fig
EM
53

Cylinder
bort
me08Uring

positions

Engine
Mechanical

Standard

Wear
limit

Inner
diameter
85
000

to
85
050

0

2
0
0079

3
3465
to
3
3484

Cylinder
bore

mm
in
Out
of
round
O
ot5
0
0006

Taper
0
015
0
0006

Difference
in

cylinder
bore

0
05
0
0020

0
2
0
0079

mm
in

CYLINDER

BORING

I
When

any
cylinder
needs

boring

all
other

cylinders
must
also
be
bored

at
the

same
time

Oversize

pistons

spec
Hic
etlons

Piston
diameter
mm
in

Servioe
standard

0
50
0
0197

Oversize

1
00

0
0394

oversize

3
The
size

to
which

cylinders
must

be

honed
is

determined

by

adding

piston

to
cylinder
clearance
to
the

largest
piston
diameter
at

piston
skirt

in

thrust
direction

EM126

Fig
EM
54

Measuring
piston
diamet
r
2

Determine

piston
oversize
ac

cording
to
amount
of
wear
of

cylinder

84
985
to
85
035

3
3459

to
3
3478

85
465
to
85
515

3
3648
to
3

3667

85

965
to
86
015

3
3844
to
3

3864

Standard
clearance

ffim
in

Feeler

gauge
mm

in

Extracting
force

kg
Ib

Notes

a

To

prevent
strain
due
to

cutting

heat
bore
the

cylinders
in
the
order

of

2
4
1

3

b

Before

boring
any
cylinder
install

main

bearing
caps
in

place
and

tighten
to
the

specification
so
that

the
crankshaft

bearing
bores
will

not
become
distorted

from
the
bor

ing
operation

4

Do
not
cut

too
much
out
of

cylinder
bore

at
a
time
Cut

only
0
05

mm
0
0020
in

or
so
in
diameter

at
a

time

EM
14
L

7
A

aboull
6
m

o
7323in

r

127

Fig
EM
55

MeCUJlJring
piston
skirt

diameter

Rebored
size

calculation

o
A
B
C
A
0
005
to

0
Q25
mm

0
0002
to
0
0010
in

where

D
Honed

diameter

A

Skirt
diameter
as
measured

B
Piston
to
wall

clearance

C

Machining
allowance
0
02
mm

0
0008
in

0
025

to
0

045
0

0010
to
0
0018

0
04
0

0016

0
2

to
1

5
O

44
to

3
31

5

Measurement

of
a

just
machined

cylinder
bore

requires
utmost
care

since
it

is

expanded
by

cutting
heat

6

As
a
final

step
cylinders
should

be

honed
to
size

7

Measure
the

finished

cylinder

bore
for

out
of
round
or

tapered
part

8
Measure

piston
to

cylinder
clear

ance

This

clearance
can
be
checked

easily
by
using
a
feeler

gauge
and
a

spring
balance
hooked

on
feeler

gauge

measuring
the
amount
of
force

re

quired
to

pull

gauge
out
from

between

piston
and

cylinder

Engine
Mechanical

Notes

a

When

measuring
clearance

slowly

pull
feeier

gaUge
siraight
upward

b
It
Is

reConUnended
that

piston
and

cylinder
be
hel

ted
to
200C
680F
PISTONS

PISTON
PINS
AND

PISTON
RINGS

I

Remove
carbon
from

piston
and

ring
grooves
with

a

ca
bon

scraper
and

a
curved
steel
wire

Clean
out
oil

slots

in

bottom
land
of

oil

ring
groove

2

Check
for

damage
scratches
and

wear

Replace
if

necessary

3

Meas1
1re
side

clearance
of

rings
in

ring
grooves
as
each

ring
is

installed

Side
clearance

should
be

as
follows
00

I
EM542

Fig
EM

58

Measuring
ring

gap

Notes

a
When

piston
ring
only
is
to
be

replaced
without

cylinder
bore

being
corrected
measure

gap
at

bottom
of

cylinder
where
wear
is

minor

b
Oversize

piston
rings
are
available

for

serv
ce

Oversize

0
5
mm
0

0197
in
and

1

0
mm
0
0394
in

5
Measure

piston
pin
hole
in
rela

tion

to
outer
diameter
of

pin
If
wear

exceeds
limit

replace
each

piston

pin

together
with
the

piston
on
which
it
is

installed

6
Determine
the

fitting
of

piston

pin
into

piston
pin
hole
to
such
an

extent
that
it

can
be

finger
pressed
at

room

temperature
This

piston
pin

must
be
a

tight
pre
s
fit
into

connect

ing
rod
t

J

f

rr

11

1

I

EM541

Fig
EM
56

Measuring
piaton
fit

in
cylinder

Fig
EM
57

Measuring
piston
ring

side
clearance

Side
clearance

Unit
mm
in

I

Second

ring

I

I
Wear
limit
Standard

0
040
to

0
073

0
0016

to
0
0029

0
030
to

0
070

I
0
0012
to

0
0028

I
Top
ring

0
1
0
0039

Oil

ring

f

feeler

gauge

Ring
should
be

placed
to
diameter

at

upper
or
lower
limit
of

ring
travel
4

Push

ring
into

cylinder
with

pis

ton
so
as
to

place
it

squarely
in

cylinder
measure

ring
gap
with
a

EM131

Ring
gap
Fig
EM

59
Piston

pin

fitting
Unit
rom
in

Standard
Wear

limit

0
25
to
0
40

0
0098
to
0
0157

0
30
to
0
50

0
0
II
8
to
0
0197
Top
ring

Second

ring
1

0
0
0394

EM132

0
30
to
0
90

0
0118
to
0
0354
Oil

ring

Fig
EM

60

Measuring
pi
ton
pin

diamet

EM
15