DETROIT DIESEL 53
5.1 Water Pump
Inspection
Wash all of the pump parts. except the bearing and
shaft assembly, in clean fuel oil and dry them with
compressed air.
NOTE: A permanently sealed and lubricated
bearing is used in the bearing and shaft
assembly and should not be washed. Wipe the
bearing and shaft assembly with a clean lintless
cloth.
Examine the impeller for damage and excessive `wear
on the impeller face which contacts the seal. Replace
the impeller if it is worn or damaged.
Discard the bearing if it has a general feeling of
roughness, is tight or has indications of damage.
Assemble Pump
1. Use installer J 1930 to apply pressure to the outer
Fig. 4 - Removing Shaft from Impeller with
race of the bearing as shown in Fig. 5 and press the
Tools J 8329 and ,J 358-1
shaft and bearing assembly into the pump body until
body and the bearing outer race supported, install the
the outer race of the bearing is flush with the outer
seal by applying pressure on the seal outer flange only,
face of the body.
until the flange contacts the body (Fig. 1). Wipe the
CAUTION: The bearing will be damaged if the
face of the seal with a chamois to remove all dirt and
bearing and shaft assembly is installed by
metal particles.
applying pressure on the end of the shaft,
3. Support the pulley end of the shaft on the bed of an
arbor press and press the impeller on the shaft until
2. Lightly coat the outside diameter of the new seal
the impeller is flush with the large end of the body.
with sealing compound. Then, with the face of the
Fig. 5 Pressing Shaft Assembly into Water
Pump
Fig. 3 - Removing Pulley
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