Chrysler 300M, Dodge Interpid. Manual - part 55
NOTE: It is normal for the water pump to weep a
small amount of coolant from the primary 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 from the primary weep
passage (Fig. 28) and (Fig. 29). This indicates a
shaft seal failure and pump must be replaced. Cool-
ant may leak from the secondary weep passage and
fill the valley of the engine (Fig. 28) and (Fig. 30). If
this condition is found, clean the primary weep pas-
sage of debris. Be sure to perform a thorough anal-
ysis before replacing water pump.
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 and timing chain
(Refer to 9 - ENGINE/VALVE TIMING/TIMING
BELT/CHAIN
AND
SPROCKETS
-
INSTALLA-
TION).
(4) Install the timing chain cover (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - INSTALLATION).
(5) Install the crankshaft damper (Refer to 9 -
ENGINE/ENGINE BLOCK/VIBRATION DAMPER -
INSTALLATION).
(6) Install the accessory drive belts. (Refer to 7 -
COOLING/ACCESSORY
DRIVE/DRIVE
BELTS
-
INSTALLATION)
(7) Install the radiator fan (Refer to 7 - COOLING/
ENGINE/RADIATOR FAN - INSTALLATION) and
(8) Install the radiator upper crossmember (Refer
to 23 - BODY/EXTERIOR/GRILLE OPENING REIN-
FORCEMENT - INSTALLATION).
(9) Fill cooling system. (Refer to 7 - COOLING -
STANDARD PROCEDURE)
Fig. 28 Water Pump Weep Passages - 2.7L
1 - PRIMARY WEEP PASSAGE
2 - SECONDARY WEEP PASSAGE
Fig. 29 Primary Water Pump Weep Passage - 2.7L
1 - THERMOSTAT HOUSING/COOLANT INLET
2 - WATER PUMP WEEP PASSAGE
Fig. 30 Secondary Water Pump Weep Passage -
2.7L
1 - WEEP PASSAGE TO VALLEY OF BLOCK
2 - HOLE IN REAR OF BLOCK
LH
ENGINE
7 - 35
WATER PUMP - 2.7L (Continued)