03-33
SECTION 03 - ENGINE PREPARATION
ENGINE LEAKAGE TEST
General
A Sea-Doo Engine Leak Test Kit (P/N 295 500 352)
is available to help diagnose engine problems
such as engine seizure, poor performance, oil
leakage, etc.
Before disassembling any components of the en-
gine, it is important to perform a leakage test to
determine which part is defective.
It is also very important after servicing the engine,
even for a complete engine rebuilt, to perform an-
other leakage test; at this stage, it may avoid fur-
ther engine problems and minimizing the risk of
having to remove and reinstall the engine again.
Static bench testing is the most effective way to
conduct a leakage test. Inboard testing does not
allow complete access to, and observation of all
engine surfaces and should be avoided whenever
possible.
On some twin cylinder engines, cylinders can not
be verified individually due to leakage from one
cylinder to another through a common intake
manifold.
When installing hoses of the Engine Leak Test Kit,
use the collars provided in the kit to ensure a prop-
er sealing.
When pressurizing the engine, first confirm that
the components of the Engine Leak Test Kit are
not leaking by spraying a solution of soapy water
on all hoses, connections, fittings, plates, etc. If
there is a leak, bubbles will indicate leak location.
Three areas of the engine will be tested in se-
quence as per the diagnostic flow chart (on page
03-38).
1. Engine Cooling System
2. Bottom End and Top End
3. Rotary Valve Shaft
NOTE:
If a leak is found, it is important to contin-
ue testing as there is the possibility of having
more than one leak. Continue pumping to com-
pensate for the air lost to find another leak.
Bench Testing Procedure
Engine Cooling System
Remove the exhaust manifold gasket and ensure
the surface is cleaned.
Install the appropriate exhaust manifold plate
(
no. 1
for the 787 engine and
no. 2
for other en-
gines except the 947) from the Engine Leak Test
Kit. Tighten plate using fasteners provided in the
kit.
Use hoses provided in the kit and install them on
the engine.
Install pump using reducer and appropriate
tube(s) as necessary.
587 ENGINE
1. Plug hose using a bolt and clamps
587 ENGINE
1. Plug exhaust manifold drain hose with a pincher
2. Use 2 washers with exhaust manifold stud
F01B2RA
1
F01B2SA
1
2
Содержание Bombardier
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