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Engine
Control
Fuel
Exhaust
Systems
REMOVAL
Non
Cal i f o rni a
models
I
Remove
exhaust
tube
U
bolt
clamp
2
Break sealant off
at
front tube
to
main
muffler
connectio
n
3
Remove
rear
tube
mounting
bolt
and
remove
muffler
assembly
with
rear
tube
4
Remove
front tube
heat
insulator
5
Remove
nuts
securing
front tube
to
exhaust manifold
and
remove
front
tube
mounting
bolts
Then detach
front
tube
When
disconnecting
the exhaust
tube connections pay
attention to
the
following
point
I
Break
old
se l a nt
off
at
t
1 e
connection
by
lightly
tapping
around
the
tube
witlJ
a
hammer and
twisting
muffler See
Figures
FE
7 and
FE 8
2
Using
a
rubber hammer
tap
on
the front end of muffler while
pushing
it
toward
rear
The mumer
assembly
can
then
be taken out
See
Figure
FE 9
FE187
Fig
FE 7
Breaking
Bealant
FEl88
Fig
FE
8
Twisting muffler
ijl
4
FE189
Fig
FE 9
Tapping muffler
with
Q
rubber hammer
California models
I
Remove
all heat insulators
2
Remove
exhaust
tube
U bolt
clamp
3
Break sealant off
at center tube
to main
muffler connection
4
Remove
rear
tube
mounting
bolt
and remove muffler
assembly
with
rear
tube
5
Remove
bolts
securing
catalytic
converter to center
tube and
remove
center
tube
mounting
bolts
Then detach
center tube
6
Remove
bolts and
nuts
securing
catalytic
converter to
front tube and
detach
catalytic
converter
7
Remove
nuts
securing
front tube
to
exhaust manifold and
remove
front
tube
mounting
bolts
Then detach
front tube
INSPECTION
I
Check
muffler
and
tubes
for
cracks
Qr
damage
Replace
any
part
that
is
damaged
beyond limits
2
Replace
bracket
and
mounting
insulator that
are
cracked
fatigued
or
sweated
FE 8
INSTALLATION
Install the exhaust
system assembly
in
reverse
order of removal Observe
the
following
Notes
a
Insert
front tube until it touches
emboss
b
When there is
110
clearance between
front tube and floor
or
propeUer
shaft
turn
tube
along
center
line of
tube in
the manifold
connecting
unit
and obtain proper clearance
c
Check all tube connections for
ex
haust gas leaks and entire system
for
unusual
noises
with
engine
running
d
After
installation
check
that
mounting
brackets and
mounting
rubbers
are
free from undue
stress
If any of the above
parts
is
not
installed
properly
excessive noises
or
vibrations may be transmitted
to
the vehicle
body
e
Tightening
torque
Exhaust manifold
to
front
tube nut
19 to
2
5
kg
m
14
to
18
ft lb
U bolt
securing
nut
19 to
2 1
kg
m
14
to
15 ft lb
Mounting
bracket bolt
1
0
to
1
2
kg
m
710 9 ft lb
Front tube
mounting
bracket
bolt
california
models
19 to 2 1
kg
m
14
to
15 ft lb
Catalytic
converter to
front
and
center
tube bolt
California models
3
2 to
4
3
kg
m
23
to
31 ft Ib
If exhaust tubes
are
separated
at
connection
t
renew
muffler
assembly
etc
use
the Genuine Nissan Sealant
Exhaust Sealant Kit 20720 N2225
or
equivalent
See
Figure
FE IO
to
eliminate gas
leakage
at
the
joint
Be
sure
to
observe the
following
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