Westerbeke 6.5KW - Page 68

Trouble
Possible
Cause
Low Oil Pressure 1.
Oil leaks
(unit shut-down)
2.
Low oil level or
incorrect grade
3.
Faulty oil pressure
switch
4.
Clogged oil filter
5.
Clogged oil pump
strainer
6.
Worn or
fatigued
oil pressure relief
valve spring
7.
Faulty electrical
circuit
Checking Oil Pressure with Mechanical
1. Remove the oil pressure sender
and connect a mechanical oil
pressure gauge instead.
2. Electrically jump the oil pres-
sure switch connections.
3. Start the engine, operate at
1800 RPM and allow engine to
warm up.
4. Measure the oil pressure. If
less than the specification,
check the lubricating system.
Gauge
1.
2.
3.
4.
5.
6.
7.
Oil pressure:
1.75 - 2.5 kg/cm
2
+ .7 kg/cm
2
(25 - 35
PSI + 5 lb/in
2
)
Remedy
Refer to above.
Add oil to proper
level or change.
Test and replace.
Remove and
replace oil
filter.
Remove and
clean.
Remove and replace.
Check circuit and
repair
as needed.
NOTE: Insure proper oil is being used that meets temperature
requirements and the A.P.I. Spec. of SE or SE/CC.
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