Technical data

Section 09 PROPULSION SYSTEM
Sub-Section 01 (JET PUMP)
09-01-15
24,25, Thrust Washer and Thrust
Bearing
Visually inspect thrust washer, thrust bearing and
their contact surface. Check for scoring, pitting,
flaking, discoloration or other evidence of wear.
For best inspection, use a 7X magnifying glass to
check wear pattern.
TYPICAL
1. Worn roller (trunnion worn on end roller)
2. Good roller (cylindrical shape)
3. Look for scoring on retainer
NOTE : When replacing either washer or
bearing, it is recommended to renew both.
17,23, Housing Cover and Impeller
Shaft
End Play
End play of impeller shaft is checked with shaft in
housing, without impeller and with housing cover
installed.
Retain housing in a soft jaw vise making sure not
to damage housing lug. Set a dial gauge and posi-
tion its tip on the end of shaft. Move shaft end by
pulling and pushing. Difference between highest
and lowest dial gauge reading is end play. Maxi-
mum permissible end play (new) is 0.12 - 0.54
mm (.005 - .021 in). Make sure vise is secured and
not adding to your measurement as you move im-
peller shaft.
1. Tip on shaft end
Excessive play comes from worn end stop inside
housing cover and wear of impeller shaft nose.
Visually inspect end stop inside cover. If worn, a
small peak in center will be apparent.
TYPICAL
1. End stop
If impeller shaft end play is excessive, housing
cover should be replaced. Be sure to check end
play after installing a new housing cover.
Inspect impeller shaft nose for wear.
F01J52A
1
2
3
F01J2SA
1
F01J5KA
1
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