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post #1 of Old 06-11-2008 Thread Starter
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Fuel filter replacement on Yanmar 3GM30F

hello all, I'm working on a raw water pump project on another post here and got great feedback. I also want to replace my fuelfilters but still not 100% sure how that goes. Doing some other work on the boat I managed to trace the fuel lines from the primary to the engine and it disappeared (!) under the exhaust elbow and I c0uoldnt see either filter or the pump to bleed with. Do anyone know if this indeed is that fuel filter on a 3GM30? Also in the shop manual mentions two pumps, a fuel transfer and a fuel injection pump, since the pictures are terrible black and whites I'm having a hard time identifying them... any tips ?

Also for the primary, which is a Racor 110, how do I bleed air out after replacing the filter ? Are there any tricks how to replace and minimize the air put in the system ?

thanks !
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