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Unbolt the oil seal carrier from the cylinder
block. The sprocket, spacer (where fitted) and
chain can then be slid off the end of the
crankshaft.
5 Slacken and remove the bolts (along with
the baffle plate, where fitted) securing the
strainer cover to the pump body. Lift off the
strainer cover, and take out the relief valve
piston and spring, noting which way round
they are fitted (see illustrations).
6 Examine the pump rotors and body for
signs of wear ridges or scoring. If worn, the
complete pump assembly must be renewed.
7 Examine the relief valve piston for signs of
wear or damage, and renew if necessary. The
condition of the relief valve spring can only be
measured by comparing it with a new one; if
there is any doubt about its condition, it
should also be renewed. Both the piston and
spring are available individually.
8 Thoroughly clean the oil pump strainer with
a suitable solvent, and check it for signs of
clogging or splitting. If the strainer is
damaged, the strainer and cover assembly
must be renewed.
9 Locate the relief valve spring and piston in
the strainer cover. Refit the cover to the pump
body, aligning the relief valve piston with its
bore in the pump. Refit the baffle plate (where
fitted) and the cover retaining bolts, and
tighten them securely.
Refitting
10 Offer up the spacer plate (where fitted),
then locate the pump sprocket with its drive
chain. Seat the pump on the base of the
cylinder block/crankcase. Refit the pump
retaining bolts, and tighten them to the
specified torque setting.
11 Where necessary, slide the sprocket
cover into position on the pump. Refit its
retaining bolts, tightening them securely.
12 Refit the sump as described in Section 9.
11 Oil cooler - removal and
refitting
2
Cylinder block-mounted oil cooler
Removal
1 Certain models may be fitted with an oil
cooler mounted between the cylinder block
and the oil filter.
2 To prevent the oil cooler from being
unscrewed as the oil filter is removed, on later
models, a retaining lug is provided on the
cylinder block, which engages with a fork on
the oil cooler.
3 To remove the oil cooler, first remove the oil
filter and partially drain the cooling system as
described in Chapter 1.
4 Disconnect the coolant hoses from the
filter. Be prepared for coolant spillage, and
plug the open ends of the hoses to prevent
dirt ingress and further coolant loss.
5 Unscrew the oil filter mounting stub, then
withdraw the oil cooler from the engine (see
illustration).
Refitting
6 Refitting is a reversal of removal, bearing in
mind the following points.
a) When refitting the oil cooler, where
applicable, ensure that the fork on the cooler
engages with the lug on the cylinder block.
b) Before refitting the oil filter mounting stub,
thoroughly clean the threads, and coat
them with thread-locking compound.
c) Tighten the mounting stub to the
specified torque.
d) Fit a new oil filter and fill the engine with
oil as described in Chapter 1.
e) On completion, refill the coolant level as
described in or Chapter 1.
Remotely mounted oil cooler
Removal
7 On models with a remotely mounted oil
cooler, this is located in front of the radiator.
8 Remove the radiator grille and front bumper
as described in Chapter 11.
9 Unbolt the engine compartment front
crossmember, and position it to one side,
leaving the bonnet release cable still attached.
10 Remove the air inlet hose.
11 Remove the stone guard from the front
cowling.
12 Unscrew the retaining bolts, then release
the clips and move the front cowling forwards
for access to the oil cooler.
13 Place rags or a container beneath the oil
cooler to collect any spilled oil. Unscrew the
union nuts while holding the connection stubs
stationary. Plug the stubs, or tie them to one
side.
14 Unscrew the nuts, release the oil cooler
from the front cowling, and remove it from the
car (see illustration).
XU series engine in-car repair procedures 2B•11
2B
10.5a Lift off the pump strainer cover . . .
10.5b . . . and take out the relief valve
piston and spring
11.14 Removing the remotely mounted oil cooler (1)11.5 Cylinder block mounted oil cooler mounting stub (A) and
locating notch (B)