S-81
03-M-DI Series, WSM
DIESEL ENGINE
3. LUBRICATING SYSTEM
[1] Checking
Engine Oil Pressure
1. Remove the engine oil pressure switch, and set a oil pressure
tester (Code No.: 07916-32032).
2. Start the engine. After warming up, measure the oil pressure of
both idling and rated speeds.
3. If the oil pressure is less than the allowable limit, check the
following.
• Engine oil insufficient.
• Oil pump defective
• Oil strainer clogged
• Oil filter cartridge clogged
• Oil gallery clogged
• Excessive oil clearance
• Foreign matter in the relief valve
(When reassembling)
• After checking the engine oil pressure, tighten the engine oil
pressure switch to the specified torque.
W1034952
Engine oil pressure
At idle
speed
Allowable
limit
49 kPa
0.5 kgf/cm
2
7 psi
At rated
speed
Factory
spec.
294.2 to 441 kPa
3.0 to 4.5 kgf/cm
2
42.7 to 64 psi
Allowable
limit
245 kPa
2.5 kgf/cm
2
36 psi
KiSC issued 10, 2009 A
