Section 11
PROPULSION SYSTEM
Subsection 02
(JET PUMP)
SMR2002-043_11_02A.FM
11-02-21
O-Rings
Install O-rings
no. 38
around bailer passages or make
sure they are in place if they were not removed.
PUMP PRESSURIZATION
Whenever doing any type of repair on jet pump, a
pressure test should be done to check for leakage.
Proceed as follows:
– Remove drain plug from cover.
– Apply Loctite Pipe sealant on threads of fitting
tool (P/N 295 000 086) then secure on cover.
– Connect pump gauge tester (P/N 529 021 800)
to fitting.
– Pressurize pump to a maximum of 70 kPa (10 PSI).
– Pump must maintain this pressure for at least
10 minutes.
CAUTION:
Repair any leak, failure to correct a
leak will lead to premature wear of pump com-
ponents.
NOTE:
If there is a pressure drop spray soapy wa-
ter around cover. If there are no bubbles, impeller
shaft, impeller shaft seal, or jet pump housing is
leaking through porosity and has to be replaced.
Jet pump unit has to be disassembled. If jet pump
has been overhauled, the impeller shaft seal
no. 22
may be leaking; Add a small quantity of
SEA-DOO JET PUMP SYNTHETIC OIL to wet the
oil seal. Let soak and recheck.
– Disconnect pump gauge tester and remove fit-
ting.
– Check oil level. Refill as necessary.
– Apply Loctite Pipe sealant (P/N 293 800 018) to
threads of filler plug then secure it in cover.
NOTE:
The plug threads are perpendicular to the
impeller shaft.
INSTALLATION
Jet Pump Housing
Generously apply synthetic grease on drive shaft
splines.
Make sure rubber damper is on drive shaft end.
Install jet pump. If necessary, wiggle jet pump to
engage drive shaft splines in impeller.
CAUTION:
Some watercraft require a shim be-
tween hull and pump; if shim has been re-
moved at pump removal, be sure to reinstall it,
otherwise engine alignment will be altered.
Apply Loctite 243 (blue) on stud threads of jet
pump housing.
Install flat washers
no. 40
, lock washers
no. 41
and nuts
no. 25
. Tighten nuts of jet pump housing
in a criss-cross sequence and torque to 31 N•m
(23 lbf•ft).
N O T E :
S l i g h t l y l u b r i c a t e w e a r r i n g w i t h
BOMBARDIER LUBE lubricant to minimize friction
during initial start.
Nozzle
GTX RFI Models
Insert bushings
no. 42
in nozzle
no. 20
, position-
ing their flanges from inside of nozzle.
Insert sleeves
no. 22
in bushings
no. 42
.
Install nozzle on venturi
no. 24
; position its steer-
ing arm on RH side. Apply Loctite 243 (blue) on
screw threads (or use new screws with pre-ap-
plied threadlocker). Install screws
no. 21
and wash-
ers
no. 23
then torque to 20 N•m (15 lbf•ft).
F00J0LA
www.SeaDooManuals.net
Summary of Contents for GTI 5558
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