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8 Coolant pump - removal and
refitting
3
Note: Refer to the warnings given in Section 1
of this Chapter before proceeding.
XV, XW, and XY series engines
Removal
1 Drain the cooling system and remove the
auxiliary drivebelt as described in Chapter 1.
2 Disconnect the radiator bottom hose,
heater return hose, and inlet manifold return
hose from the coolant pump (see
illustration). For better access, remove the air
cleaner and inlet cowl, with reference to the
relevant Part of Chapter 4.
3 Unscrew the mounting bolts and remove
the coolant pump from the cylinder block.
Remove the O-ring (see illustrations).
4 If the coolant pump is worn, noisy or leaks
coolant it must be renewed, as repair is not
possible. However, if either of the half casings
is individually damaged it may be renewed,
together with the central gasket.
Refitting
5 Refitting is a reversal of removal, bearing in
mind the following points:
a) Renew the pump O-ring.
b) Refit the auxiliary drivebelt and refill the
cooling system as described in Chapter 1.
XU series engines
Removal
6 Drain the cooling system (Chapter 1).
7 Remove the timing belt and tensioner, as
described in Chapter 2B.
8 Remove the plastic shield, noting the
locations of the different types of bolt (see
illustration).
9 Unscrew the five mounting bolts and
remove the coolant pump from the cylinder
block. Remove the gasket (see illustration).
Cooling, heating and air conditioning systems 3•5
3
8.2 Radiator and heater hose connections
on the coolant pump - XV, XW and XY
series engines
8.3a Undo the mounting bolts . . .
8.3b . . . withdraw the pump from the
cylinder block . . .
8.3c . . . and recover the O-ring - arrowed
(XV, XW and XY series engines
8.9 Coolant pump assembly fitted to XU
series engines
1 Gasket 2 Coolant pump
8.8 Timing belt inner plastic shield and special bolt locations on early XU series engines
Apply sealant to bolt threads A