2-28
PERIODIC
MAINTENANCE
OIL PRESSURE CHECK
Check the engine oil pressure periodically. This will give a good indication
of
the condition of the moving
parts.
_ Oil pressure:
Above
40
kPa (0.4
kgflcm
',
5.7 psi)
Below
140 kPa (1.4 kgf/cm
',
19.9 psi)
at 3 000
rlmin
,
oil
temperature
at
60
°C (140 OF)
Low
or
high
oil
pressure
can indicate any
of
the
following
conditions
:
LOW OIL PRESSURE
* Clogged
oil
filter
* Oil leakage from the oil passage
* Damaged a-ring
* Defective oil pump
* Combination of the above items
HIGH OIL PRESSURE
* Engine
oil
viscosity
is
too high
* Clogged oil passage
•
CUllllJinaUon
Of
the above Items
OIL
PRESSURE
TEST
PROCEDURE
• Connect a tachometer
to
the high-tension cord.
•
nemove
the
main
oil
gallery
plug
(D.
• Install the
oil
pressure gauge and adaptor into the main
oil
gallery.
•
Warm
up
the engine as follows:
Summer:
10
minutes at 2 000 rlmin
Winter:
20
minutes
at
2 000 rlmin
• After warming up the engine, increase the engine speed
to
3000
rlmin (check the tachometer), and then read the
oil
pres-
sure gauge.
ItmJ
09915-74510: Oil
pressure
gauge
09915-70610:
Adapter
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