Jeep Cherokee 1999 Electronic Service Manual page 1101

9 - 84 4.0L ENGINE
REM OVAL AN D I N STALLAT I ON (Cont inue d)
Fig. 49 Fabrication of Alignment Dowels
Fig. 50 Position of Dowels in Cylinder Block
n er s a n d cylin der block t o fr on t cover join t s (fou r
pla ces) (F ig. 51).
(5) Slide t h e on e-piece ga sket over t h e dowels a n d
on t o t h e block a n d t im in g ca se cover.
(6) P osit ion t h e oil pa n over t h e dowels a n d on t o
t h e ga sket . If equ ipped wit h a n oil level sen sor, t a ke
ca r e n ot t o da m a ge t h e sen sor.
(7) In st a ll t h e 1/4 in ch oil pa n bolt s. Tigh t en t h ese
bolt s t o 9.5 N·m (84 in . lbs.) t or qu e. In st a ll t h e 5/16
in ch oil pa n bolt s (F ig. 52). Tigh t en t h ese bolt s t o 15
N·m (132 in . lbs.) t or qu e.
Fig. 51 Oil Pan Sealer Location
Fig. 52 Position of 5/16 inch Oil Pan Bolts
(8) Rem ove t h e dowels. In st a ll t h e r em a in in g 1/4
in ch oil pa n bolt s. Tigh t en t h ese bolt s t o 9.5 N·m (84
in . lbs.) t or qu e.
(9) Lower t h e en gin e u n t il it is pr oper ly loca t ed on
t h e en gin e m ou n t s.
(10) In st a ll t h e t h r ou gh bolt s a n d t igh t en t h e n u t s.
(11) Lower t h e ja ck st a n d a n d r em ove t h e piece of
wood.
(12) In st a ll t h e en gin e flywh eel a n d t r a n sm ission
t or qu e con ver t er h ou sin g a ccess cover.
(13) In st a ll t h e en gin e st a r t er m ot or.
(14) Con n ect t h e exh a u st pipe t o t h e h a n ger a n d t o
t h e en gin e exh a u st m a n ifold.
(15) In st a ll t r a n sm ission
equ ipped) a n d oxygen sen sor wir in g su ppor t s t h a t
a t t a ch t o t h e oil pa n st u ds.
(16) In st a ll t h e oil pa n dr a in plu g (F ig. 52).
Tigh t en t h e plu g t o 34 N·m (25 ft . lbs.) t or qu e.
(17) Lower t h e veh icle.
(18) Con n ect n ega t ive ca ble t o ba t t er y.
(19) F ill t h e oil pa n wit h en gin e oil t o t h e specified
level.
WARNING: USE EXTREME CAUTION WHEN THE
ENGINE IS OPERATING. DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR
HANDS NEAR THE PULLEYS, BELTS OR FAN. DO
NOT WEAR LOOSE CLOTHING.
(20) St a r t t h e en gin e a n d in spect for lea ks.
PISTONS AND CONNECTING RODS
REMOVAL
(1) Rem ove t h e en gin e cylin der h ea d cover.
(2) Rem ove t h e r ocker a r m s, br idges a n d pivot s.
(3) Rem ove t h e pu sh r ods.
(4) Rem ove t h e en gin e cylin der h ea d.
(5) P osit ion t h e pist on s on e a t a t im e n ea r t h e bot -
t om of t h e st r oke. Use a r idge r ea m er t o r em ove t h e
r idge fr om t h e t op en d of t h e cylin der wa lls. Use a
pr ot ect ive clot h t o collect t h e cu t t in gs.
X J
oil coolin g lin es (if