TROUBLESHOOTING SERVICE MANUAL NUMBER 22
Page 1C-24 90-860074--1 FEBRUARY 2002
Oil Pressure (continued)
Item Special Information
6. Low engine oil pressure at idle 6. With modern engines and engine oils,
low oil pressure readings at idle do not
necessarily mean there is a problem. If
valve lifters are not noisy at idle, there is a
sufficient volume of oil to lubricate all
internal moving parts properly. The reason
for the drop in oil pressure is that engine
heat causes an expansion of the internal
tolerances in the engine and, also, the oil
will thin out somewhat from heat.
7. Low engine oil pressure at idle after
running at a high rpm
7. Refer to Number 5. and 6. preceding
8. Boats with dual engines 8. It is not uncommon to see different oil
pressure readings between the two
engines, as long as both engines fall
within specifications. Differences in oil
pressure can be attributed to differences
in engine tolerances, gauges, wiring,
senders, etc.
9. Boats with dual stations 9. Refer to Number 8. preceding
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