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Section 08
ENGINE MANAGEMENT (4-TEC)
Subsection 03
(COMPONENT INSPECTION AND ADJUSTMENT)
08-03-30
SMR2003_027 _08_03A.FM
The valve is turned on as soon as safety lanyard is
installed on its post. The valve opening allows ven-
tilation of crankcase.
The OSPS monitors the pressure to detect a mal-
function of this valve. If pressure rises above a pre-
set threshold, the valve is re-energized again and
if it fails, a fault code is generated.
The TOPS switch (mercury type), located besides
the MPEM (on MPEM bracket), monitors the wa-
tercraft position. If the watercraft rolls above a pre-
set threshold (or tips over) the switch opens and
the EMS ECU closes the valve to prevent oil in
engine crankcase to flow towards intake manifold.
Besides, the engine RPM will be gradually re-
duced then engine will be stopped.
1. TOPS valve
Resistance Test
Disconnect the connector from the TOPS valve and
check the resistance of the solenoid itself.
The resistance should be between 1.27
Ω
and
2.47
Ω
.
Otherwise, replace the TOPS valve.
Dynamic Test
Activate the TOPS valve by installing the safety
lanyard on the DESS post.
If you can hear the movement of the piston (knock-
ing), the valve works fine, otherwise follow the pro-
cedure shown in the following chart.
NOTE:
Take into account that you could hear the
piston movement and the valve might not be
working properly. The retaining washer could be
unlocked from the piston shaft. Disassembly will
reveal its condition.
TOPS Valve Replacement
Disconnect the wiring harness from the TOPS
valve.
Remove the oil separator cover. Refer to OIL SEP-
ARATOR REPLACEMENT in the LUBRICATION
SYSTEM section.
1. Solenoid valve
2. Spring
3. Valve disc
4. Retaining washer
Remove the valve disc and the spring on the bot-
tom of the TOPS valve after removing the retain-
ing washer.
Unscrew and remove the TOPS valve.
Install the new valve with new gasket. Apply Loc-
tite 243 (blue) on threads and torque to 10 N•m
(89 lbf•
in
).
Reinstall remaining removed parts.
TOPS Switch
Disconnect TOPS switch and remove from MPEM
bracket.
Using and ohmmeter, measure resistance between
terminals.
1
R1503motr179A
WARNING
The spring on the TOPS valve is tensioned and
can shoot away the valve disc. Hold the valve
disc with fingers while removing the washer.
1
R1503motr181A
2
3
4
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Summary of Contents for 2003 GTI LE RFI
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Page 767: ...NOTE www SeaDooManuals net ...
Page 768: ...NOTE www SeaDooManuals net ...
Page 769: ...F00Z0D 2003 GTI MODEL WARNING www SeaDooManuals net ...
Page 770: ...F00Z0C 2003 GTI LE MODEL WARNING www SeaDooManuals net ...
Page 771: ...F00Z0E 2003 GTI LE RFI MODEL WARNING www SeaDooManuals net ...
Page 772: ...F00Z0J 2003 RX DI MODEL WARNING www SeaDooManuals net ...
Page 773: ...F00Z0I 2003 GTX DI MODEL WARNING www SeaDooManuals net ...
Page 774: ...F00Z0K 2003 XP DI MODEL WARNING www SeaDooManuals net ...
Page 775: ...F00Z0F 2003 GTX 4 TEC MODEL WARNING www SeaDooManuals net ...
Page 776: ...F00Z0G 2003 GTX 4 TEC MODEL WITH AUXILIARY DESS MODULE WARNING www SeaDooManuals net ...
Page 777: ...F00Z0B 2003 GTX 4 TEC AND GTX 4 TEC SUPERCHARGED MODELS WARNING www SeaDooManuals net ...
Page 779: ...www SeaDooManuals net ...