Jeep Cherokee 1999 Electronic Service Manual page 1170

X J
REM OVAL AN D I N STALLAT I ON (Cont inue d)
Fig. 7 Rear Exhaust Tailpipe Mounting Bracket
close t o t h e m u ffler. Colla pse t h e pa r t r em a in in g in
t h e m u ffler a n d r em ove.
• To r em ove a ser vice exh a u st t a ilpipe/m u ffler
com bin a t ion , a pply h ea t u n t il t h e m et a l becom es
ch er r y r ed. Rem ove t h e exh a u st t a ilpipe/m u ffler
cla m p a n d t wist t h e exh a u st t a ilpipe ou t of t h e m u f-
fler.
INSTALLA TION
(1) In st a ll t h e m u ffler on t o t h e ca t a lyt ic con ver t er.
In st a ll t h e cla m p a n d t igh t en t h e n u t fin ger t igh t .
(2) In st a ll t h e exh a u st t a ilpipe in t o t h e r ea r of t h e
m u ffler.
(3) In st a ll t h e exh a u st t a ilpipe/m u ffler a ssem bly
on t h e r ea r exh a u st t a ilpipe m ou n t in g br a cket . Ma ke
su r e t h a t t h e exh a u st t a ilpipe h a s su fficien t clea r-
a n ce fr om t h e floor pa n .
(4) In st a ll fr on t t a ilpipe h a n ger in t o t h e in su la t or
(F ig. 5).
(5) Align t h e m u ffler a n d t igh t en t h e n u t s on t h e
m u ffler-t o-ca t a lyt ic con ver t er cla m p t o 61 N·m (45 ft .
lbs.) t or qu e (F ig. 6).
(6) Align t h e t a ilpipe a n d in st a ll a n ew cla m p a t
t h e m u ffler t o t a ilpipe con n ect ion .
(7) Tigh t en t h e m u ffler t o t a ilpipe cla m p t o 61 N·m
(45 ft . lbs.)
(8) Lower t h e veh icle.
(9) St a r t t h e en gin e a n d in spect for exh a u st lea ks
a n d exh a u st syst em con t a ct wit h t h e body pa n els.
Adju st t h e a lign m en t , if n eeded.
SPECI FI CAT I ON S
TORQUE SPECIFICA TIONS
D e s c rip tio n
Ca ta ly tic Co n v e rte r/Ex h a u s t P ip e
E xh a u st Cla m p Nu t . . . . . . . . . . 61 N·m (45 ft . lbs.)
Cro s s m e m be r to S ill
Bolt s . . . . . . . . . . . . . . . . . . . . . . 42 N·m (31 ft . lbs.)
Cro s s m e m be r to Tra n s m is s io n Mo u n t
Nu t s . . . . . . . . . . . . . . . . . . . . . . 22 N·m (16 ft . lbs.)
Ex h a u s t P ip e to Ma n ifo ld
Nu t s . . . . . . . . . . . . . . . . . . . . . . 31 N·m (23 ft . lbs.)
Ex h a u s t Ma n ifo ld –2.5L En g in e
Bolt #1 . . . . . . . . . . . . . . . . . . . . 41 N·m (30 ft . lbs.)
Ex h a u s t Ma n ifo ld –2.5L En g in e
Nu t s #6&7 . . . . . . . . . . . . . . . . . 31 N·m (23 ft . lbs.)
Ex h a u s t Ma n ifo ld –4.0L En g in e
Nu t s #6&7 . . . . . . . . . . . . . . . . . 31 N·m (23 ft . lbs.)
Bolt #3 . . . . . . . . . . . . . . . . . . . . 33 N·m (24 ft . lbs.)
In ta k e Ma n ifo ld –2.5L En g in e
Bolt #2–5 . . . . . . . . . . . . . . . . . . 31 N·m (23 ft . lbs.)
In ta k e & Ex h a u s t Ma n ifo ld –2.5L En g in e
Bolt s #2–5 . . . . . . . . . . . . . . . . . 31 N·m (23 ft . lbs.)
In ta k e & Ex h a u s t Ma n ifo ld –4.0L En g in e
Nu t s/Bolt s #1,2,4,5,8–11 . . . . . . . 33 N·m (24 ft . lbs.)
Mu ffle r to Ca ta ly tic Co n v e rte r
E xh a u st Cla m p Nu t . . . . . . . . . . 61 N·m (45 ft . lbs.)
Ox y g e n S e n s o rs
Nu t . . . . . . . . . . . . . . . . . . . . . . . 27 N·m (20 ft . lbs.)
Re a r Ta il P ip e Ha n g e r
Nu t s . . . . . . . . . . . . . . . . . . . . . . 54 N·m (40 ft . lbs.)
EXHAUST SYSTEM
To rqu e
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