Section13PROPULSION
Subsection 01 (JET PUMP)
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).
F00J0LA
– 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. 5
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
between 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, lock washers and nuts. Tight-
en nuts of jet pump housing as per the following
sequence.
F18J1YA
3
15
62
4
From1to2: 16N•m(12lbf•ft)
From3to6: 31N•m(23lbf•ft)
NOTE: Slightly lubricate wear ring with BOM-
BARDIER LUBE lubricant to minimize friction
during initial start.
Nozzle
XP DI Models
Install nozzle/trim ring assembly.
Torquescrewsto20N•m(15lbf•ft).
smr2004-Complete Line Up 633
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