Page 65 of 548
Engine
Mechanical
CRANKSHAFT
1
Q
I
j
s
l
s
A
B
AI4
AI5
Unit
mm
in
Journal
diameter
A
c
r
49
951
to
49
964
h9666
to
1
967
1
Pin
diameter
8
44
961
to
44
974
I
7701
to
1
7706
EM777
8
38
45
to
38
55
1
5138
to
1
5177
Standard
Out
of
round
X
Y
Taper
A
B
Taper
and
out
of
round
of
Less
than
A
B
journal
and
crank
pin
0
005
0
0002
0
A
B
X
Y
Crankshaft
bend
Less
than
0
025
0
0010
Crankshaft
free
end
play
0
05
to
0
15
EM715
0
0020
to
0
0059
BEARING
Bearing
oil
clearance
Unit
mm
in
Standard
Wear
limit
Main
bearing
clearance
0
026
to
0
090
0
0010
to
0
035
0
10
0
0039
CO
llecting
rod
bearing
clearance
0
030
to
0
079
0
0012
to
0
0031
EM
28
40
95
to
41
05
1
6122
to
1
6161
Unit
mm
in
Wear
limit
0
03
0
0012
0
05
0
0020
0
30
0
0118
Page 66 of 548
Engine
Mechanical
Main
bearing
undersize
Unit
mm
in
Main
bearing
undersi
ze
Crank
journal
diameter
Standard
size
49
943
to
49
964
1
9663
to
1
9671
0
25
0
0098
49701
to
49
714
1
9567
to
1
9572
Undersize
0
50
0
0197
49451
to
49
464
1
9469
to
1
9474
0
75
0
0295
49
201
to
49
214
1
9370
to
1
9376
Connecting
rod
bearing
undersize
Unit
mm
in
Connecting
rod
bearing
undersize
Crank
pin
diameter
Standard
size
44
954
to
44
974
1
7698
to
I
7706
0
08
0
0031
44
881
to
44
894
1
7670
to
1
7675
0
25
0
0098
44
711
to
44
724
1
7603
to
1
7608
Undersize
0
50
0
0197
44
461
to
44
474
1
7504
to
1
7509
0
75
0
0295
44
211
to
44
224
1
7406
to
I
7411
MISCELLANEOUS
COMPONENTS
Unit
mm
in
Max
tolerance
Runout
of
camshaft
0
1
0
004
0
15
0
0059
Runout
of
flywheel
EM
29
Page 67 of 548
t
IGHTENING
TORQUE
Cylinder
head
bolt
Rocker
shaft
bracket
bolt
ain
bearing
cap
bolt
Flywheel
fixing
bolt
Drive
plate
fixing
bolt
Al4
AlS
Connecting
rod
cap
nut
Camshaft
sprocket
bolt
Locating
plate
bolt
Valve
rocker
adjusting
nut
Oil
strainer
bolt
Oil
pan
bolt
Oil
pan
drain
plug
Timing
chain
cover
bolt
Crank
pulley
bolt
Water
pump
bolt
Fuel
pump
bolt
Spark
plug
Engine
mounting
securing
bolt
Engine
Mechanical
Unit
kg
iii
ft
lb
7
0
to
7
5
51
to
54
2
0t02
5
14to
18
5
0
to
6
0
36
to
43
8
0
to
9
0
58
to
65
8
0
to
9
0
58
to
65
8
5
to
9
5
61
to
69
3
2
to
3
8
23
to
27
4
0
to
4
8
29
to
35
0
5
to
0
8
3
6
to
5
8
1
6
to
2
2
12to
16
0
9
to
I
4
6
5
to
10
1
0
4
to
0
6
2
9
to
4
3
2
0
to
3
0
14
to
22
0
5
to
0
7
3
6
to
5
1
15to
20
l08
to
145
0
9
to
I
4
6
5
to
1O
l
0
9
to
I
4
6
5
to
10
1
1
5
to
2
0
11
to
14
1
9
to
2
5
14to
18
EM
30
Page 68 of 548

Engine
Mechanical
TROUBLE
DIAGNOSES
AND
CORRECTIONS
Condition
I
Noill
f
onglno
Knocking
of
crank
shaft
and
bearing
Piston
and
connecting
rod
knocking
Camshaft
knocking
Timilli
chain
noise
Camshaft
and
valve
mechanism
knock
ing
Probable
cause
Loose
main
bearing
Seized
bearing
Ben
crankshaft
Excessive
crankshaft
end
play
Loose
bearing
Seized
bearing
Loose
piston
pin
Loose
piston
in
cylinder
Broken
piston
ring
Improper
connecting
rod
alignment
Loose
bearing
Exc
essive
axial
play
Rough
ge
r
teeth
8roken
cam
gear
Improper
chain
tension
Worn
and
or
damaged
chain
I
Wom
sprocket
Worn
and
or
broken
tension
adjusting
mecha
nism
Excessive
camshaft
and
bearing
clearance
Improper
valve
clearance
Worn
adjusting
screw
Worn
rocker
face
Loose
valve
stem
in
guide
Weakened
valve
pring
Seized
valve
EM
31
Corrective
action
Replace
Replac
Repair
or
replace
Peplace
center
thrust
bearing
l
Replace
Replace
Replace
pin
or
bushing
Recondition
cylinder
Replace
Realign
Replace
Replace
bearing
thrust
plate
Repair
Replace
Adjust
Replace
Replace
Replace
Replace
AdjUst
Replace
Replace
Replace
guide
Replace
Repair
or
replace
Page 69 of 548

Condition
Waterpurnp
knocking
II
Othw
mllChani
troubl
Stuck
valve
Seized
valve
seat
Excessively
wom
cylinder
and
piston
Engine
Mechanical
Probab
Ie
cause
Improper
shaft
end
play
Broken
impeller
Improper
valve
clearance
Insufficient
clearance
between
valve
stem
and
guide
Weakened
or
broken
valve
pring
Biting
or
damage
of
valve
stem
Poor
fuel
quality
Il1
prop
r
valve
clearance
Weakened
valve
pring
Thin
valve
head
edge
Narrow
valve
seat
Overheating
Over
speeding
Sticked
valve
guide
Shortage
ofengine
oil
Dirty
engine
oil
Poor
oil
quality
Overheat
Wrong
assembly
of
piston
with
connecting
rod
Improper
piston
ring
clearance
Dirty
air
cleaner
Too
rich
mixture
Engine
over
run
Stuck
choke
valve
Over
choking
EM
32
Corrective
action
Replace
Replace
Adjust
Clean
stem
or
ream
the
guide
Replace
Repil
ce
or
clean
Use
good
fuel
Adjust
Replace
Replace
valve
Reface
Repair
or
replace
Drive
at
proper
speed
Repair
Add
or
replace
oil
Check
oil
level
on
daily
basis
Clean
crankcase
replace
oil
and
re
place
oil
ftIter
element
Use
proper
oil
Repair
or
replace
Repair
or
replace
Adjust
Clean
periodically
Adju
t
Drive
correctly
Clean
and
adjust
Start
in
correct
way
Page 70 of 548
Condition
Faulty
connecting
rod
Faulty
crankshaft
bearing
Engine
Mechanical
Probable
cause
Shortage
of
engine
oil
Low
oil
pressure
Poor
engine
oil
quality
Rough
crankshaft
surface
Clogged
oil
passage
Bearing
worn
or
eccentric
Bearing
improperly
assembled
Loose
bearing
Incorrect
connecting
rod
alignment
Shortage
of
engine
oil
Low
oil
pressure
Poor
quality
engine
oil
Worn
or
out
of
round
crankshaft
journal
Clogged
oil
passage
in
crankshaft
Bearing
worn
or
eccentric
Bearing
inproperly
assembled
Non
co
centric
crankshaft
or
bearing
EM
33
Corrective
action
Add
or
replace
oil
Check
oil
level
on
daily
basis
Correct
Use
proper
oil
Grind
and
replace
bearing
Clean
Replace
Repair
Replace
Repair
or
replace
Add
or
replace
Check
oil
level
on
daily
basis
Adjust
Use
proper
oil
Repair
Clean
Replace
Repair
Replace
Page 71 of 548
Engine
M
hanical
SPECIAL
SERVICE
TOOLS
Kent
Moore
No
I
Kent
Moore
No
Tool
number
tool
name
Reference
page
or
Fig
No
Tool
numb
r
tool
name
Reference
page
or
Fig
No
ST0501S000
CD
ST050
11000
@
ST05012000
Engine
stand
aJSe1Ilbly
Engine
stand
Sase
126023
CD
J26
m
2
@126023
1
STII670000
valve
seat
cutter
set
Fig
EM
4
Page
EM
13
Page
EM
16
Fig
EM
26
KVIOI02500
Engine
attachment
126097
STl207oo00
Valve
lifter
125631
Fig
EM
4
Page
EM
13
Page
EM
16
Fig
EM
16
Fig
EM
53
KV
10
1039S0
Valve
guide
reamer
set
125618
KYIOl05300
Piston
pin
press
stand
CD
STl1081000
Reamer
12
2
mm
CD
125618
3
0
480
in
dia
@J25618
2
Fig
EM
15
2
STlI032000
8
0
mm
0
315
in
@
125618
1
Fig
EM
55
dia
3
STlI033000
Valve
guide
drift
Fig
EM
24
Fig
EM
25
I
Ju
STl611
0000
Camshaft
bearing
drift
125644
CD
Fig
EM
28
@
@
@
@
KV
10
104800
Valve
lip
seal
drift
125624
KV
10
I
02800
Pilot
bushing
puller
125657
Fig
EM
52
Fig
EM
45
EM
34
Page 72 of 548
Tool
number
tool
name
EM03470000
Piston
ring
compressor
Engine
Mechanical
Kent
Moore
No
Reference
page
or
Fig
No
Fig
EM
66
EM
35
Tool
number
tool
name
ST20610000
Clutch
aligning
bar
Kent
Moore
No
Reference
page
or
Fig
No
125673
Fig
EM
83