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post #1 of 6 Old 08-03-2011 Thread Starter
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Volvo Penta 2002 18 hp. after 5 to 30 minutes

My Volvo Penta 2002 18 hp 2 cylinder diesel engine start easy, sounds and runs good from 5 to 30 minutes. It then stops like it is not getting fuel. It has new fuel,new filters and seperators that were topped off with fuel when they were installed. Any suggestions?
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post #2 of 6 Old 08-03-2011
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jtsail, welcome to Sailnet. When you get a chance an introduction post in the Introductions section might be nice.

You've probably got air getting in somewhere. Bleed the fuel system right through to the injectors and see if that makes a difference.

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post #3 of 6 Old 08-03-2011
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Some boats have a screen in the fuel tank pickup tube. Run the motor, the screen plugs up. Stop the motor, the fuel sloshing around in the tank partially washes off the screen, just enough so it will run for a bit until it plugs up again.

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post #4 of 6 Old 08-03-2011
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Perhaps the tank is not venting properly or a partially plugged pickup tube if it has a screen on it. All connections on the vacuum side of the pump should be checked, or perhaps the filter itself is sucking air somewhere?

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post #5 of 6 Old 08-03-2011
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if you get a jerrycan of diesel and stick a hose in it and plumb it to the fuel system to bypass your tank, and it runs, it would point to the tank or the fittings to the tank or the plugged vent line as dabnis mentioned (good call btw)

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post #6 of 6 Old 02-09-2015
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Re: Volvo Penta 2002 18 hp. after 5 to 30 minutes

Do you have the engine manual there is a screen that needs to be checked and cleaned every so often up high on the front of the motor (I'm not looking at it right now so I cant tell you exactly where) Top of the fuel pump maybe. I can look at my manual if you need and there is an online source for the manual I will see about a link.
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