Section 09
PROPULSION AND DRIVE SYSTEMS
Sub-Section 01
(PROPULSION AND DRIVE SYSTEMS)
09-01-13
19,20, IMPELLER AND WEAR RING
Examine impeller in wear ring for distortion.
Check if blade tips are blunted round, chipped or
broken. Such impeller is unbalanced and will vi-
brate and damage wear ring, impeller shaft, shaft
seal or bearings. Renew if damaged.
1. Replaced if blunted round or damaged
Check impeller for cavitation damage, deep
scratches or any other damage.
1. Check for cavitation, deep scratches or other damage
Check wear ring for deep scratches, irregular sur-
face or any apparent damage.
If impeller
/
wear ring clearance is too large and
impeller is in good shape, renew wear ring.
22,25, Needle Bearing and Impeller
Shaft
Wear
Inspect needle bearings and their contact surface.
Check for scoring, pitting, chipping or other evi-
dence of wear.
With a finger nail, feel contact surface of seal. If
any irregular surface is found, renew impeller
shaft.
Install bearings then install impeller shaft and ro-
tate it. Make sure it turns smoothly.
Radial Play
Radial play is critical for jet pump unit life span.
Radial play of impeller shaft is checked with shaft
in housing, without impeller.
Retain housing in a brass jaw vise making sure not
to damage housing lug.
Set a dial gauge and position its tip onto shaft end,
close to end of threads.
Move shaft end up and down. Difference be-
tween highest and lowest dial gauge reading is
radial play.
Maximum permissible radial play is 0.05 mm
(.002 in).
MEASURING IMPELLER SHAFT RADIAL PLAY
1. Dial gauge
2. Measure close to threads at shaft end
To check both bearings, proceed the same way
with other shaft end. Position gauge tip on diam-
eter, close to flats on shaft.
F01J16A
1
F01J17A
1
F01J18A
1
2
Summary of Contents for Challenger 5896
Page 1: ......
Page 2: ......
Page 3: ...219 100 044 0 0 0 1996 Shop Manual 0 R ...
Page 152: ...Section 08 ELECTRICAL Sub Section 03 IGNITION SYSTEM 08 03 2 ELECTRICAL BOX Sportster F04H11S ...
Page 154: ...Section 08 ELECTRICAL Sub Section 03 IGNITION SYSTEM 08 03 4 ELECTRICAL BOX Speedster F04H26S ...
Page 251: ...Section 11 HULL DECK Sub Section 01 COMPONENTS 11 01 5 F04L3IS Loctite 242 ...
Page 274: ......