wsm wg972-e4 - Lubricating System

ENGINE
WG972-E4, WSM
1-S16
(2) Lubricating System
Engine Oil Pressure
1. Remove the engine oil pressure switch, and set an oil pressure
tester.
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 damaged
• 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.
9Y1211108ENS0009US0
Engine oil pressure
At idle
speed
Factory
specifica-
tion
More than
50 kPa
0.5 kgf/cm
2
7 psi
At rated
speed
Factory
specifica-
tion
200 to 440 kPa
2.0 to 4.5 kgf/cm
2
29 to 64 psi
Allowable
limit
150 kPa
1.5 kgf/cm
2
21 psi
Tightening torque Oil pressure switch
15 to 19 N·m
1.5 to 2.0 kgf·m
11 to 14 lbf·ft
KiSC issued 07, 2015 A