Low Oil Pressure at Idle, Volvo AD31B in the Tropics
Hi
Check the oil pressure relief valve and clean it.
Try a heavier grade of oil, not one of the modern wide range synthetic or
semi synthetics multigrades.
30 or 40grade or possibly a 20/50 I would stick with a mineral oil for an
engine of this age.
Castrol make an oil for older higher mileage vehicles but I expect it is not
available where you are.
Alec
"David L. Martel" wrote in message
...
hookipa,
A sticking oil pressure relief valve would cause these symptoms.
Dave M.
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