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  1. K

    Exhaust riser restrictor plate - Volvo Penta sterndrive 3.0 GLP-D 4-cylinder petrol

    Thank you for the helpful answers. One other question around the same issue is whether this J-hose, from the engine circulator pump to thermostat should stay cool, or should be closer to the engine's running temperature. If I read the below diagram correctly, this J hose (#9) should always be...
  2. K

    Exhaust riser restrictor plate - Volvo Penta sterndrive 3.0 GLP-D 4-cylinder petrol

    Thank you. I also read on a previous post that this restrictor plate should only be installed if there is an additional hose to the elbow, shown here I think with 19. My riser elbow does not have any additional hoses attached. Can only see the temperature sensor, and an Allen bolt. If this is...
  3. K

    Exhaust riser restrictor plate - Volvo Penta sterndrive 3.0 GLP-D 4-cylinder petrol

    Hi all, looking for answers to the below issue affecting my first ever boat, recent owner. Volvo Penta 3.0 GLP-D, 4-cylinder, sterndrive, petrol engine on a Glastron 5.2 m fiberglass boat. Engine runs OK, warming up to ~175 F in ~10 minutes, and will run at this temperature. Top J-hose, from...
  4. K

    Volvo Penta 3.0GS Restrictor Plate position on Riser

    Hi, I trust this post is not to old. Trying to diagnose the reason for occasional splitting of the J hose between the engine circulation pump and thermostat housing, (shown with number 9 on the color diagram) on a Volvo Penta 3.0 GLP-D engine. If I read this diagram correctly, this J hose (#9)...
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