Section 09
PROPULSION SYSTEM
Sub-Section 01
(JET PUMP)
09-01-4
MEASURING FROM WATER INLET SIDE
1. Feeler gauge
MEASURING FROM VENTURI SIDE
1. Feeler gauge
Oil Inspection
Venturi Removal
Detach ball joint of steering cable from nozzle.
Detach ball joint of VTS from trim ring (SPX
/
XP
models).
Remove nut of manual trim from trim ring (SPI /
HX models)
Detach ball joint of reverse cable and springs from
reverse gate (GTS
/
GTI models).
Remove 4 retaining screws from venturi.
Pull venturi and nozzle assembly from impeller
housing.
Oil Check
Remove housing cover plug.
TYPICAL
1. Remove plug
Check oil level, it should be at bottom of hole
threads.
If oil level is low, check impeller shaft housing for
leaks. A pressure test must be performed. Refer
to PUMP PRESSURIZATION in this section.
To check oil condition, insert a wire through oil
level hole then withdraw. A whitish oil indicates
water contamination.
This may involve defective impeller shaft seal and
/
or O-ring of housing cover. Jet pump unit should
be overhauled to replace seal.
If everything is correct, apply Loctite PST 592 on
plug and reinstall it on cover. Properly reinstall re-
moved parts.
Oil Replacement
Remove venturi
/
nozzle assembly as described in
Oil Inspection
.
Remove 3 screws retaining cover.
Using a fiber hammer, gently tap cover to release
it from housing cover.
Thoroughly clean reservoir and inside of cover
with a solvent. Check O-ring condition. Replace as
necessary.
Apply a thin layer of Loctite 518 on mating surface
of cover and reinstall it with its O-ring. Torque
screws to 4 N•m (35 lbf•
in
).
Remove plug from cover.
F01J0EA
1
F01J0FA
1
F01J5IA
1
www.SeaDooManuals.net