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2.5L ENGINE
REM OVAL AN D I N STALLAT I ON (Cont inue d)
(12) In st a ll t h e t im in g ca se cover-t o-cylin der block
bolt s. In st a ll t h e oil pa n -t o-t im in g ca se cover bolt s.
(13) Tigh t en t h e 1/4 in ch cover-t o-block bolt s t o 7
N·m (60 in . lbs.) t or qu e. Tigh t en t h e 5/16 in ch fr on t
cover-t o-block bolt s t o 22 N·m (192 in . lbs.) t or qu e.
Tigh t en t h e oil pa n -t o-cover 1/4 in ch bolt s t o 14 N·m
(120 in . lbs.) t or qu e. Tigh t en t h e oil pa n -t o-cover 5/16
in ch bolt s t o 18 N·m (156 in . lbs.) t or qu e.
(14) Rem ove t h e cover a lign m en t t ool a n d in st a ll a
r epla cem en t oil sea l in t o t h e cover.
(15) In st a ll t h e vibr a t ion da m per on t h e cr a n k-
sh a ft .
(16) Lu br ica t e a n d t igh t en t h e da m per bolt t o 108
N·m (80 ft . lbs.) t or qu e.
(17) If equ ipped wit h a ir con dit ion in g:
(a ) In st a ll t h e A/C com pr essor ser pen t in e dr ive
belt idler pu lley.
(b) In st a ll t h e gen er a t or.
(c) In st a ll t h e A/C con den ser a n d r eceiver /dr ier
a ssem bly.
(18) In st a ll t h e ser pen t in e dr ive belt on t h e pu lleys
a n d t igh t en (r efer t o Gr ou p 7, Coolin g Syst em for t h e
specifica t ion s a n d pr ocedu r es).
(19) In st a ll t h e r a dia t or. Con n ect t h e r a dia t or
h oses a n d a u t om a t ic t r a n sm ission flu id cooler pipes,
if equ ipped. F ill t h e coolin g syst em .
(20) In st a ll t h e fa n a n d sh r ou d.
(21) Con n ect n ega t ive ca ble t o ba t t er y.
CAMSHAFT BEARINGS
Th e ca m sh a ft r ot a t es wit h in fou r st eel-sh elled,
ba bbit t -lin ed bea r in gs t h a t a r e pr essed in t o t h e cyl-
in der block a n d t h en lin e r ea m ed. Th e ca m sh a ft
bea r in g bor es a n d bea r in g dia m et er s a r e n ot t h e
sa m e size. Th ey a r e st epped down in 0.254 m m
(0.010 in ch ) in cr em en t s fr om t h e fr on t bea r in g (la r g-
est ) t o t h e r ea r bea r in g (sm a llest ). Th is per m it s ea s-
ier r em ova l a n d in st a lla t ion of t h e ca m sh a ft . Th e
ca m sh a ft bea r in gs a r e pr essu r e lu br ica t ed.
NOTE: It is not advisable to attempt to replace
camshaft bearings unless special removal and
installation tools are available.
Ca m sh a ft en d pla y is m a in t a in ed by t h e loa d
pla ced on t h e ca m sh a ft by t h e oil pu m p a n d dist r ib-
u t or dr ive gea r. Th e h elica l cu t of t h e gea r h olds t h e
ca m sh a ft spr ocket t h r u st fa ce a ga in st t h e cylin der
block fa ce.
CRANKSHAFT MAIN BEARINGS
REMOVAL
(1) Discon n ect n ega t ive ca ble fr om ba t t er y.
(2) Rem ove t h e spa r k plu gs.
(3) Ra ise t h e veh icle.
(4) Rem ove t h e oil pa n a n d oil pu m p.
(5) Rem ove on ly on e m a in bea r in g ca p a n d lower
in ser t a t a t im e (F ig. 54).
Fig. 54 Removing Main Bearing Caps and Lower
(6) Rem ove t h e lower in ser t fr om t h e bea r in g ca p.
(7) Rem ove t h e u pper in ser t by LOOSE NING (DO
NOT RE MOVE ) a ll of t h e ot h er bea r in g ca ps. Now
in ser t a sm a ll cot t er pin t ool in t h e cr a n ksh a ft jou r-
n a l oil h ole. Ben d t h e cot t er pin a s illu st r a t ed t o fa b-
r ica t e t h e t ool (F ig. 55). Wit h t h e cot t er pin t ool in
pla ce, r ot a t e t h e cr a n ksh a ft so t h a t t h e u pper bea r-
in g in ser t will r ot a t e in t h e dir ect ion of it s lockin g
t a b. Beca u se t h er e is n o h ole in t h e No.3 m a in jou r-
n a l, u se a t on gu e depr essor or sim ila r soft -fa ced t ool
t o r em ove t h e bea r in g in ser t (F ig. 55). Aft er m ovin g
t h e in ser t a ppr oxim a t ely 25 m m (1 in ch ), it ca n be
r em oved by a pplyin g pr essu r e u n der t h e t a b.
(8) Usin g t h e sa m e pr ocedu r e descr ibed a bove,
r em ove t h e r em a in in g bea r in g in ser t s on e a t a t im e
for in spect ion .
INSTALLA TION
(1) Lu br ica t e t h e bea r in g su r fa ce of ea ch in ser t
wit h en gin e oil.
(2) Loosen a ll t h e m a in bea r in g ca ps. In st a ll t h e
m a in bea r in g u pper in ser t s.
(3) In st a ll t h e lower bea r in g in ser t s in t o t h e m a in
bea r in g ca ps.
(4) In st a ll t h e m a in bea r in g ca p(s) a n d lower
in ser t (s).
(5) Clea n t h e r ea r m a in bea r in g ca p (No.5) m a t in g
su r fa ces.
(6) Apply Mopa r
Ga sket Ma ker, or equ iva len t on
t h e r ea r bea r in g ca p (F ig. 56). Th e bea d sh ou ld be 3
Inserts
X J
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