S.2
LUBRICATING SYSTEM
68
mm
STROKE
SERIES
WSM,OI
160
-
At
idle
speed
LUBRICATING
SYSTEM
98 kPa
1
.O
kgflcm2
14psi
CHECKING
Engine
oil
Pressure
/
01
09F079
196 to
441
kPa
2.0
to
4.5 kgflcrnz
spec.
limit
At
rated
speed
Engine
Oil
Pressure
1.
Remove the oil pressure switch, and install the
engine oil pressure tester (Code No.
07916-32032).
(Adaptor screw size:
PT1/8).
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.
0
Engine
oil
insufficient
0
Oil
pump defective
0
Oil strainer clogged
0
Oil filter cartridge
0
Oil
gallery clogged
0
Excessive oil clearance
0
Foreign matter in the
relief valve
clogged
Factory
Rotor
lobe
clearance
spec.
0.03
to
0.1
4
mm
0.012to 0.0055 in.
I
I
I
1
I
(When reassembling)
0
After checking the engine oil pressure, tighten the
oil pressure switch to the specified torque.
I
14.7
to
19.6
N.m
1.5
to
2.0 kgfm
Oil
pressure switch
I I
10.8to 14.5ft-lbs
Tightening
torque
I
DISASSEMBLING AND ASSEMBLING
Oil
Pump
1,
See page
S-71.
S
E
RVl
Cl
NG
[I]
OIP
PUMP
I
D
1
09F08'1
Rotor
Lobe
Clearance
1.
Measure the clearance between lobes
of
the inner
2.
If
the clearance exceeds the allowable limit,
rotor and the outer rotor with a feeler gauge.
replace the oil pump rotor assembly.
S-I
13
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