Sea-doo GTX Limited iS 255 2009, Shop Manual

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Section 02 ENGINE
Subsection 08 (LUBRICATION SYSTEM)
Reinstall oil pressure switch.
Test at the Cylinder Head Location
The oil pressure may be measured from cylinder
head if desired.
Remove plug located on cylinder head and install
gauge.
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INSTALLATION AT CYLINDER HEAD
1. Remove plug and install gauge here
Start engine and read pressure at different RPM
as per table above.
Reinstall plug.
TROUBLESHOOTING
The following is provided to help in diagnosing the
probable source of troubles. It is a guideline and
it should not be assumed to list all possible prob-
lems.
Always check for fault codes. If a fault code is de-
tected, service the fault code first. Refer to
EN-
GINE MANAGEMENT
section.
LOW OR NO ENGINE OIL PRESSURE
1. Oil level too low.
- Refill engine oil.
- Check for high oil consumption. See below.
- Check for oil leaks (oil leaking out of leak indica-
tor hole, gaskets, oil seal or O-rings). Repair or
replace.
2. Oil pressure switch defective.
- Check and replace if necessary.
3. Oil filter clogged.
- Replace engine oil and oil filter at the same time.
4. Oil pressure regulator valve sticks open, or
spring load is too small.
- Clean oil regulator piston and its bore. Replace if
necessary.
- Measure spring free length. Replace if too small.
5. Oil pump(s) worn or damaged.
- Check oil pump rotors and its bore for wear limits.
Replace if out of specification.
6. Engine oil strainers are clogged.
- Remove and clean engine oil strainers.
7. Heavy wear on plain bearings.
- Check radial clearance of plain bearings. Replace
if out of specification.
HIGH OIL CONSUMPTION
1. Oil in breathing system.
- Check if breather V-ring is brittle, hard or dam-
aged. Replace V-ring.
2. Valve stem seals worn or damaged.
- Replace valve stem seals.
3. Piston rings worn out (blue colored exhaust
smoke).
- Replace piston rings.
OIL CONTAMINATION (WHITE
APPEARANCE)
1. Oil seal and rotary seal on water pump shaft
leaking.
- Replace oil seal and water pump shaft assembly.
- Change engine oil and oil filter.
2. Cylinder head gasket leaking.
- Replace cylinder head gasket and tighten cylinder
head with recommended torque.
- Change engine oil and oil filter.
3. Cylinder head screws not properly tightened.
- Retighten screws with recommended torque.
- Change engine oil.
4. Oil cooler O-rings are leaking.
- Replace O-rings.
- Change engine oil and oil filter.
5. Cylinder block or cylinder head casting is leak-
ing.
- Check for internal cracks in casting. Replace dam-
aged components.
- Change engine oil and oil filter.
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