Jeep Cherokee 2000 Service Manual - page 801
(13) Apply Mopar
t Silicone Rubber Adhesive Seal-
ant on cylinder block to rear main bearing cap cor-
ners and cylinder block to front cover joints (four
places) (Fig. 81)
(14) Install transmission inspection cover.
OIL PUMP
A gear-type oil pump is mounted at the underside
of the cylinder block opposite the No.4 main bearing.
The pump incorporates a nonadjustable pressure
relief valve to limit maximum pressure to 517 kPa
(75 psi). In the relief position, the valve permits oil to
bypass through a passage in the pump body to the
inlet side of the pump.
Oil pump removal or replacement will not affect
the distributor timing because the distributor drive
gear remains in mesh with the camshaft gear.
REMOVAL
(1) Drain the engine oil.
(2) Remove the oil pan.
(3) Remove the pump-to-cylinder block attaching
bolts. Remove the pump assembly with gasket (Fig.
82).
CAUTION: If the oil pump is not to be serviced, DO
NOT disturb position of oil inlet tube and strainer
assembly in pump body. If the tube is moved within
the pump body, a replacement tube and strainer
assembly must be installed to assure an airtight
seal.
Fig. 80 Location of Sealer
1 – DOWEL
2 – SEALER LOCATIONS
3 – CYLINDER BLOCK
4 – HALFWAY BETWEEN
5 – REAR FACE OF CYLINDER BLOCK
6 – 3mm (0.125 in.)
Fig. 81 Oil Pan Sealer Location
1 – SEALER LOCATIONS
Fig. 82 Oil Pump Assembly
1 – OIL FILTER ADAPTOR
2 – BLOCK
3 – GASKET
4 – OIL INLET TUBE
5 – OIL PUMP
6 – STRAINER ASSEMBLY
7 – ATTACHING BOLTS
XJ
4.0L ENGINE
9 - 111
REMOVAL AND INSTALLATION (Continued)