Jeep Cherokee 1999 Electronic Service Manual page 1147

9 - 34 ENGINE
REM OVAL AN D I N STALLAT I ON (Cont inue d)
Fig. 51 Vacuum Pump Mounting Hole
OIL PUMP PRESSURE RELIEF VALVE
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 oil pa n . Refer t o oil pa n r em ova l
a n d in st a lla t ion pr ocedu r e in t h is sect ion .
(3) Rem ove t h e r elief va lve sn a p r in g.
(4) Rem ove t h e r elief va lve ca p, spr in g, a n d
plu n ger (F ig. 52).
(5) Ch eck t h e r elief va lve spr in g len gt h . Relief
va lve spr in g fr ee len gt h is 57.5m m (2.263 in .). If
spr in g len gt h is less or spr in g is dist or t ed it m u st be
r epla ced.
(6) Ch eck t h e plu n ger for scor in g, r epla ce if n eces-
sa r y.
INSTALLA TION
(1) Th or ou gh ly clea n a ll com pon en t s a n d r elief
va lve pocket in cylin der block.
(2) F it plu n ger, spr in g a n d ca p in t o block.
(3) Com pr ess spr in g a n d in st a ll t h e sn a p r in g.
E n su r e t h e sn a p r in g is com plet ely sea t ed in gr oove.
(4) In st a ll t h e oil pa n . Refer t o oil pa n r em ova l
a n d in st a lla t ion pr ocedu r e in t h is sect ion .
(5) Con n ect t h e n ega t ive ba t t er y ca ble.
OIL FILTER ADAPTER
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 oil filt er.
(3) Rem ove t h e oil filt er a da pt er.
Fig. 52 Oil Pressure Relief Valve
(4) Rem ove t h e oil filt er ba se, a llen bolt in cen t er
of a da pt er.
(5) Rem ove t h e oil cooler a da pt er bolt .
(6) Rem ove t h e oil cooler (F ig. 53).
Fig. 53 Oil Cooler
INSTALLA TION
(1) In st a ll t h e oil cooler wit h n ew ga sket . Tor qu e
t h e oil cooler a da pt er bolt t o 60 N·m (44 ft . lbs.).
(2) In st a ll t h e oil filt er ba se wit h n ew o-r in g.
Tor qu e bolt t o 46.6 N·m (34 ft . lbs.).
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