Hudson 1955 Rambler, Technical & Service Manual

Page: 39 / 292

2
COOLING SYSTEM
WATER PUMP
"Hornet" and "Wasp" Series
The water pump is a centrifugal type utiliz-
ing a nonadjustable packless type seal. The
shaft and sealed double row ball bearings are
an integral assembly.
The water pump discharges into a brass water
distributing tube to provide uniform coolant
circulation around the valves.
FIGURE 1— Water Pump Assembly
"Hornet" 6 Series
FIGURE 2— Water Pump Assembly
"Wasp" Series
The "Hornet" V-8 water pump impeller housing
is cast integrally with the water distribu-
tion equalizing manifold. The single inlet
FIGURE 3— Water Pump Assembly
"Hornet" V-8 Series
is connected to the Ultramatic transmission
oil cooler, while the pump discharges into
the equalizing manifold. Dual outlets on the
manifold supply a balanced flow of coolant
to both cylinder banks.
"Rambler" Series
The water pump is a centrifugal blade type
utilizing a factory packed, sealed-in car-
tridge shaft seal. The seal gland springs
hold the seal tight to the shaft.
The seal cartridge is non-adjustable and
serviced as an assembly only. It is mounted
and sealed in the pump body by means of a
rubber "0" ring.
The "0" ring permits self-alignment of the
pump shaft as well as absorbing radial loads
imposed by the hydraulic forces of the
impeller.
The seal gland spring chamber serves as a
lubricant reservoir for the shaft and bushing
lubricant (Fig. 4).
Water Pump Disassembly and Assembly
"Hornet" 6 and "Wasp" Series
Remove the pump shaft retainer, cover, and
gasket.
Support the pump in water pump holding
fixture J-2778. Press the pump shaft and
bearing assembly, complete with the pulley
hub, from the pump using the shaft driver.
NOTE: The holding fixture is provided with
adjustable studs to permit leveling the pump
on the fixture. A slotted adapter is placed
between the lower part of the body to support
the body and prevent possible fracture.
The bore in the pump body must be cleaned
before reassembly.