wsm M7040 - Lubricating System

ENGINE
M6040, M7040, WSM
1-S15
(2) Lubricating System
Engine Oil Pressure
1. Remove the oil switch and set a 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.
9Y1210143ENS0006US0
Engine oil pressure
At idle
speed
Allowable
limit
50 kPa
0.5 kgf/cm
2
7.1 psi
At rated
speed
Factory
specifica-
tion
197 to 392 kPa
2.00 to 4.00 kgf/cm
2
28.5 to 56.8 psi
Allowable
limit
147.1 kPa
1.50 kgf/cm
2
21.3 psi
Tightening torque Oil switch taper screw
15 to 19 N·m
1.5 to 2.0 kgf·m
11 to 14 lbf·ft
KiSC issued 07, 2012 A