2-22 PERIODIC MAINTENANCE
OIL PRESSURE CHECK
Check the oil pressure periodically. This will give a good indication of the condition of the moving parts.
OIL PRESSURE SPECIFICATION
35 – 60 kPa (0.35 – 0.60 kgf/cm
2
) at 3 000 r/min., Oil temp. at 60°C (140°F)
If the oil pressure is lower or higher than the specification, the following causes may be considered.
LOW OIL PRESSURE
* Clogged oil filter
* Oil leakage from the oil passage
* Damaged O-ring
* Defective oil pump
* Combination of above items
HIGH OIL PRESSURE
* Engine oil viscosity is too high
* Clogged oil passage
* Combination of the above items
OIL PRESSURE TEST PROCEDURE
Check the oil pressure in the following manner.
• Remove the main gallery plug 1.
• Install the oil pressure gauge with adaptor in the position shown
in the figure.
• Connect an electric tachometer.
• Warm up the engine as follows:
Summer 10 min. at 2 000 r/min.
Winter 20 min. at 2 000 r/min.
• After warming up, increase the engine speed to 3 000 r/min.
(with the electric tachometer), and read the oil pressure gauge.
% 09915-74510: Oil pressure gauge
09915-74560: Adaptor
09900-26006: Tachometer
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