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    4.3 GXI started humming or whizzing noise

    After running my boat for an hour my fuel pump on my 4.3 GXI started humming or whizzing noise. I'm getting some backfiring and sputtering. It wouldn't run at higher rpm's and ran fine after the engine cooled down. Got any answers. Please Help!
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    What are the torque specs for a 2006 4.3 GXI-G Volvo Penta exhaust manifold and riser

    What are the torque specs for a 2006 4.3 GXI-G Volvo Penta exhaust manifold and riser?
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