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  1. J

    low oil pressure on 5.7L GM (Volvo)

    Just bought a 1999 boat with Volvo 5.7L. Oil pressure drops to under 10psi at 600 rpm after running WOT for a few minutes. Returns to 40psi at 1,000 rpm and 60-70 at high speed. Not the gauge. Only 200 hrs. Got any ideas?
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