Water Pump—2.7L Engine - Chrysler 2000 LHS Owner's Manual

7 - 22 COOLING SYSTEM
REMOVAL AND INSTALLATION (Continued)
NOTE: It is normal for the water pump to weep a
small amount of coolant from the weep hole (black
stain at weep passage). Do not replace the water
pump if this condition exists. Replace the water
pump if a heavy deposit or a steady flow of engine
coolant is evident on side of the cylinder block
from the weep hole passage (shaft seal failure). Be
sure to perform a thorough analysis before replac-
ing water pump.
WARNING: DO NOT REMOVE PRESSURE CAP
WITH THE SYSTEM HOT AND PRESSURIZED. SERI-
OUS BURNS FROM COOLANT CAN RESULT.
(1) Drain cooling system. Refer to Cooling System
Draining in this section.
(2) Remove upper radiator crossmember. Refer to
BODY for procedure.
(3) Remove fan module.
(4) Remove accessory and air conditioning drive
belts.
NOTE: The water pump is driven by the primary
timing chain.
(5) Remove crankshaft damper, timing chain cover,
primary timing chain, and all chain guides. Refer to
ENGINE for procedures.
(6) Remove bolts attaching water pump to block
(Fig. 24).
(7) Remove water pump and gasket.
Fig. 24 Water Pump—2.7L Engine
1 – WATER PUMP
2 – BOLTS
3 – BOLTS
INSTALLATION
(1) Clean all sealing surfaces.
(2) Install water pump and gasket. Tighten mount-
ing bolts to 12 N·m (105 in. lbs.).
(3) Install timing chain guides, timing chain, tim-
ing chain cover, and crankshaft damper. Refer to
ENGINE for procedures
(4) Install accessory drive belts. Refer to procedure
in this section.
(5) Install fan module and upper radiator cross-
member.
(6) Fill cooling system. Refer to Cooling System
Refilling in this section.
WATER PUMP—3.2/3.5L
REMOVAL
The water pump on all models can be replaced
without discharging the air conditioning system.
WARNING: DO NOT REMOVE PRESSURE CAP
WITH THE SYSTEM HOT AND UNDER PRESSURE
BECAUSE SERIOUS BURNS FROM COOLANT CAN
OCCUR.
NOTE: It is normal for the water pump to weep a
small amount of coolant from the weep hole (black
stain on water pump body). Do not replace the
water pump if this condition exists. Replace the
water pump if a heavy deposit or a steady flow of
engine coolant is evident on water pump body from
the weep hole (shaft seal failure). Be sure to per-
form a thorough analysis before replacing water
pump.
(1) Drain cooling system. Refer to Cooling System
Draining in this section.
(2) Remove accessory drive belts. Refer to proce-
dure in this section.
(3) The water pump is driven by the timing belt.
Refer to Timing Belt Removal in ENGINE for compo-
nent removal to provide access to water pump.
(4) Remove water pump mounting bolts (Fig. 25).
Note position of longer bolt for proper re-installation.
(5) Remove water pump body from engine (Fig.
25).
INSTALLATION
(1) Clean all O-ring surfaces on pump and cover.
(2) Apply Mopar Dielectric Grease or equivalent
to the O-ring to facilitate assembly. Install new
O-ring on water pump (Fig. 26).
(3) Position water pump to engine.
(4) Install mounting bolts and tighten to 12 N·m
(105 in. lbs.).
LH