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Have volvo penta D6 330 hp problem is as revs increases oil…

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have volvo penta D6 330...
have volvo penta D6 330 hp problem is as revs increases oil pressure fluctuates . steadier at idle .Changed oil pressure regulator valves under oil filters and sender unit
Submitted: 4 months ago.Category: Boat
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Answered in 1 day by:
3/21/2018
Marine Mechanic: Boat Doc, Boat Enthusiast replied 4 months ago
Boat Doc
Boat Doc, Boat Enthusiast
Category: Boat
Satisfied Customers: 236
Experience: Expert at Just Answer
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T​he first thing I would do is put a manual gauge on the engine and see what the true oil pressure is. If it is indeed fluctuating at higher rpms it may mean there is some blockage in the oiling system. Most likely causes would be a clogged oil cooler or possibly the oil pickup screen in the pan.

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