F-1031, Section 4214
Page 6 of 10
Inspection
and Repair (Cont’d)
Impeller Shaft
Examine shaft for signs of severe scratches, grooves or corrosion, espe-
cially under the oil seal or mechanical seals. If scratches are not severe,
and are not under seals, they can be ignored. Check for cracks, pitting,
twisted splines or damaged keyway.
Scratches in the area of the bellows of the mechanical seal can possibly
be removed by spinning the shaft in a lathe and polishing with a fine
emery cloth.
Installing Oil Seals
Before installing an oil seal in a housing, be sure that the seal, shaft and
housing are clean.
Apply force to the outer edge of the seal and press in evenly.
Oil Seal Sleeve
Check for wear and scratches where the seal contacts the sleeve. The
journal may be polished with a fine emery cloth, however; any polishing
that leaves a spiral pattern may lead to an oil leak. If a groove has been
worn in the sleeve, it can be reused by turning it end for end. If question-
able, replace the sleeve or fit with a thin replacement sleeve. This re-
placement sleeve allows use of the same size oil seal. This type of repair
sleeve is available through most sources of oil seals.
Volute Body and Intake Adapter
Examine for cracks, severe corrosion or other damage. Almost all damage
to these parts results from improper use or maintenance, or from freezing.
Replace defective parts.
Clean out drainage hole in volute body, located between the seat for the
throttle bushing and oil seal.
Throttle Bushing
Note: The bushing serves as a restriction to fluid leakage if the me-
chanical seal fails.
Examine the bore in the bushing for wear due to contact with the shaft.
The size of the bore is 2.760/2.762.
