Section 07 PROPULSION
Subsection 01 (JET PUMP)
Jet Pump Housing
Remove pump as an assembly or remove the fol-
lowing:
– nozzle
no. 18
– venturi
no. 24
.
Remove 4 hexagonal nuts/screws from jet pump
housing.
Remove jet pump with a wiggle movement.
CAUTION:
When removing pump unit, a shim
could have been installed between hull and
pump housing. Be sure to reinstall it otherwise
engine and jet pump alignment will be altered.
NOTE:
If drive shaft is seized in the PTO flywheel,
refer to DRIVE SYSTEM.
DISASSEMBLY
NOTE:
Whenever removing a part, visually check
for damage such as: corrosion, crack, split, break,
porosity, cavitation, deformation, distortion, heat-
ing discoloration, wear pattern, missing plating,
missing or broken balls in ball bearing, water
damage diagnosed by black-colored spots on
metal parts, etc. Renew any damaged part. As
a quick check, manually feel clearance and end
play, where applicable, to detect excessive wear.
Impeller Cover
With pump housing in vertical position, remove 3
retaining screws
no. 25
.
F18J0LA
Using a fiber hammer, gently tap impeller cover
no. 26
to release it from jet pump housing
no. 27
.
Use flat screwdriver to remove cover.
F18J0MA
Check for presence of water in cover and bearing
no. 28
. If so, replace oil seal
no. 29
and sleeve
no. 30
.
Remove both O-rings
no. 31
and circlip
no. 32
.
F18J0NA
F18J0OA
190
smr2005-019
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