Suzuki VLR1800, Service Manual

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1E-2 Engine Lubrication System:
Diagnostic Information and Procedures
Engine Lubrication Symptom Diagnosis
B822H11504001
Oil Pressure Check
B822H11504002
Check the engine oil pressure periodically. This will give
a good indication of the condition of the moving parts.
NOTE
Before checking the oil pressure, check the
following:
• Oil level (Refer to “Engine Oil and Filter
Replacement in Section 0B (Page 0B-11)”)
• Oil leaks (If leak is found, repair it.)
• Oil quality (If oil is discolored or
deteriorated, replace it.)
1) Start the engine and check if the oil pressure
indicator light is turned on. If the light stays on, check
the oil pressure indicator light circuit. If the circuit is
OK, check the oil pressure in the following manner.
2) Remove the oil pressure switch lead wire and oil
pressure switch (1).
3) Install the oil pressure switch (1) into the special tool.
4) Install the oil pressure gauge and attachment into
the main oil gallery.
Special tool
(A): 09915–74521 (Oil pressure gauge hose)
(B): 09915–17410 (Oil pressure gauge
attachment)
(C): 09915–77331 (Meter (for high
pressure))
Condition Possible cause Correction / Reference Item
Engine overheats Insufficient amount of engine oil. Check level and add.
Defective oil pump. Replace.
Clogged oil circuit. Clean.
Clogged oil cooler Clean or replace.
Incorrect engine oil. Change.
Exhaust smoke is dirty or
thick Excessive amount of engine oil. Check level and drain.
Engine lacks power Excessive amount of engine oil. Check level and drain.
1
I822H1150001-02
(C)
(A)
1
(B)
I822H1150002-02