Jeep Cherokee 1999 Electronic Service Manual page 1152

X J
REM OVAL AN D I N STALLAT I ON (Cont inue d)
t h e lin er s in posit ion u sin g specia l t ool (VM-1016)
a n d bolt s (F ig. 65). Clea n t h e r esidu a l LOCTITE on
t h e u pper su r fa ce of t h e block deck.
Fig. 65 Liner Clamp Location
(9) Rech eck t h e lin er pr ot r u sion . It sh ou ld be 0.01
- 0.06 m m .
NOTE: A period of six hours must elapse between
the liners being installed and engine start-up. If
engine assembly is not continued after liner instal-
lation, the liners need to be clamped for twelve
hours minimum.
CRANKSHAFT MAIN BEARINGS
REMOVAL
(1) Discon n ect t h e n ega t ive ba t t er y ca ble.
(2) Rem ove t h e en gin e fr om veh icle. Refer t o
en gin e r em ova l a n d in st a lla t ion in t h is sect ion .
(3) In st a ll t h e en gin e on a n en gin e st a n d.
(4) Rem ove t h e a ccessa r y dr ive syst em .
(5) Rem ove t h e cylin der h ea d cover. Refer t o cylin -
der h ea d cover r em ova l a n d in st a lla t ion in t h is sec-
t ion .
(6) Rem ove t h e r ocker a r m a ssem blies a n d pu sh
r ods. Refer t o r ocker a r m a n d pu sh r od r em ova l a n d
in st a lla t ion in t h is sect ion .
(7) Rem ove t h e in t a ke m a n ifold, exh a u st m a n ifold
a n d t u r boch a r ger. Refer t o Gr ou p 11, E xh a u st Sys-
t em a n d Tu r boch a r ger.
(8) Rem ove t h e wa t er m a n ifold.
(9) Rem ove t h e oil feed lin es t o r ocker a r m s.
(10) Rem ove t h e cylin der h ea ds. Refer t o cylin der
h ea d r em ova l a n d in st a lla t ion in t h is sect ion .
(11) Rem ove t h e oil pa n a n d oil pick-u p.
(12) Rem ove t h e pist on s a n d con n ect in g r ods.
(13) Rem ove t h e vibr a t ion da m per. Refer t o vibr a -
t ion da m per r em ova l a n d in st a lla t ion in t h is sect ion .
(14) Rem ove t h e t im in g gea r cover. Refer t o t im in g
gea r cover r em ova l a n d in st a lla t ion in t h is sect ion .
(15) Rem ove t h e oil pu m p a n d va cu u m pu m p fr om
block.
(16) In st a ll specia l t ool VM.1004 on t o cr a n ksh a ft
over gea r (F ig. 67).
(17) Rem ove t h e m a in bea r in g oil feed a n d cr a n k-
sh a ft su ppor t loca t or s fr om block.
(18) Rem ove t h e flywh eel a n d a da pt or pla t e fr om
en gin e block.
(19) Rem ove t h e t h r u st bea r in gs fr om r ea r m a in
bea r in g ca r r ier.
(20) Slide t h e cr a n ksh a ft a n d bea r in g ca r r ier s
r ea r wa r d t o r ea r of block. If you en cou n t er difficu lt y
in r em ovin g t h e com plet e a ssem bly a s pr eviou sly
descr ibed, slide t h e a ssem bly r ea r wa r d su fficien t ly t o
ga in a ccess t o t h e m a in bea r in g ca r r ier bolt s. Ma r k
t h e ca r r ier s for a ssem bly a n d r em ove t h e bolt s, t wo
for ea ch ca r r ier (F ig. 68).
(21) Sepa r a t e t h e t wo h a lves of ea ch ca r r ier,
r em ove fr om t h e cr a n ksh a ft a n d t em por a r ily r e-a s-
sem ble t h e ca r r ier s (F ig. 69). Wit h dr a w t h e cr a n k-
sh a ft t h r ou gh t h e r ea r of t h e cr a n kca se.
INSTALLA TION
NOTE: Be sure the oil jets are facing the front of
the engine.
(1) F it t h e m a in bea r in g su ppor t s t oget h er. Tor qu e
t o 42 N·m (31 ft . lbs.)
(2) Ch eck in t er n a l dia m et er of bea r in gs.
(3) If in t er n a l dia m et er of or igin a l bea r in g is bein g
ch ecked a n d figu r es a r e n ot wit h in specifica t ion s,
n ew bea r in gs m u st be u sed.
(4) Ch eck t h e cr a n ksh a ft m a in bea r in g jou r n a ls t o
bea r in g clea r a n ces. Clea r a n ces of m a in bea r in gs is
.03 t o .088m m (.0011 t o .0035 in .).
NOTE: Assemble engine according to sequence
described, thus saving time and preventing dam-
ages to engine components. Clean parts with a suit-
able solvent and dry them with compressed air
before assembly. Use new gaskets where applicable
and torque wrenches for correct tightening of com-
ponents.
ENGINE 9 - 39