5.1 Water Pump
DETROIT DIESEL 53
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 lint-less 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.
1. Use installer J 1930 to apply pressure to the outer race of the
bearing as shown in Fig. 5 and press the shaft and bearing assembly
into the pump body until the outer race of the bearing is flush with the
outer face of the body.
The bearing will be damaged if the bearing and
Fig. 4 - Removing Shaft from Impeller with
shaft assembly is installed by applying pressure on the end of the shaft.
Tools J 8329 and J 358-1
2. Lightly coat the outside diameter of the new seal with sealing compound. Then, with the face of the body and the
bearing outer race supported, install the seal by applying pressure on the seal outer flange only, until the flange contacts
the body (Fig. 1). Wipe the face of the seal with a chamois to remove all dirt and metal particles.
3. Support the pulley end of the shaft on the bed of an arbor press and press the impeller on the shaft until the impeller
is flush with the large end of the body.
Fig. 3 - Removing Pulley
Fig. 5 - Pressing Shaft Assembly into Water Pump