H28.5 Ran out of fuel.

Jun 7, 2010
3
Hunter 28.5 Coeur d'Alene , Idaho
Any tips on restarting my Yanmar 2GM20 after I ran her out of diesel :( I'm not getting fuel up to the filter on the engine , will I possibly need to pressurize the fuel tank ? I've always been cautious to not run out so have no experience with this. Did a search but didn't see anything. Pls point me in the right direction. Many thanks
 
May 24, 2004
470
Hunter 33.5 Portsmouth, RI
After you refuel with new diesel fuel, you should open both fuel filters (Primary - possibly a Racor,, and then the Secondary Yanmar Fuel Filter on th top Starboard front side of the engine). If the Filters have not been changed in a while, this would be a good time to replace them. With Filters in place, pour in some diesel fuel to fill the cannistor as much as you can. After the filter cannistors are in place, you will need to loosen the bleed screw on the top of the secondary Yanmar filter. Make a small "halo" by twisting a small piece of paper towel and putting it in a circle around the bleed screw to absorb any fuel coming out. Go to the bottom Starboard side of the engine and feel around for the manual Fuel Lift Pump Lever about half way back. You will need to flip that up (it self returns) about 50 to 200 times. What you are doing is bleeding air out of the fuel lines from the tank up to the Yanmar fuel filter. Around the paper "halo" you get air coming out and some fuel bubbles out and finally some diesel fuel squirts with each lever flip. That should now have bled the air out. Diesel Engines don't like air in the fuel and just don't want to run. Tighten down the Bleed Screw, after you replace the small copper compression washer under the screw head. Now try starting the engine. It should start after a several cranks to get fuel up to and thru the Injectors. If not, you may have to bleed air out at the Injectors, but cranking the engine over may force the fuel up to the Injectors. Good luck with all of this. It's all part of the diesel engine learning process. Don't be afraid to tackel this task. The 2GM20(F) is a great little engine - I've heard diesel mechanics refer to it as "bullet proof" - it's hard to hurt it.
 
Nov 6, 2006
10,104
Hunter 34 Mandeville Louisiana
you may have to rotate the engine a little to get the fuel pump cam in the retracted position so that you can get a full stroke with the finger lever.. before you use the starter a bunch, close the seacock and remove the water pump inlet hose so that you don't back flood the engine with seawater.
 
Dec 14, 2003
1,434
Hunter 34 Lake of Two Mountains, QC, Can
If it doesn't start after you've bled it at the Yanmar filter, before you go to the injectors, bleed it at the pump. The bleed screw is not too hard to reach. Same procedure as for the Yanmar filter. Open up the bleed screw, pump with the lever or run on the starter (decompress engine) as per Kloudie's explanation, until you get air-free fuel coming out. Retighten bleed screw, put compression levers back on and try starting. Chances are you will not need to go to the injectors. Good luck
 

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Jan 22, 2008
31
Hunter 30_74-83 Cincinnati OH
One trick I learned a while back, was to install a manual fuel pump (outboard fuel line squeeze bulb) in between the fuel tank and the fuel filters. It really helps in bleeding the fuel filters and easier to use than the manual fuel pump on the engine.