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Joined: Dec 2010
Home Port: Kings Park, NY
Vessel Info: 2003 38' Open Cummin's 6CTA's (450 hp)
Posts: 660
Threads: 11
Likes Given: 1
Likes Received: 89 in 81 posts
Joined: Dec 2010
Home Port: Kings Park, NY
Vessel Info: 2003 38' Open Cummin's 6CTA's (450 hp)
My 9KW Onan Generator on a 2003 38 Open is connected to the starboard tank. To prime the generator use start/stop button on the generator itself and depress it down (stop) position. After a few seconds you should hear the electric fuel pump and see a "yellow" light blinking on the start/stop button. Keep depressed for 30-60 seconds and the yellow blinking should get faster and faster... After 30-60 seconds depresses the start/stop button up (start). Generator should crank and after a short period start. If it doesn't start try to prime again (depress button and watch yellow indicator light blinking). see picture ..M2C
Based on your profile, you have a 4000? I have the same. On our boats, the Gen pulls from the center “Aux” tank and you can’t change that (like you can the mains).
Access to the top of the tank is under the panel directly in front of the fridge.
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Joined: Jun 2019
Home Port: NY, Long Island, South shore
Vessel Info: 1998 4000 Express, Cat 3208
Posts: 58
Threads: 9
Likes Given: 5
Likes Received: 15 in 10 posts
Joined: Jun 2019
Home Port: NY, Long Island, South shore
Vessel Info: 1998 4000 Express, Cat 3208
The generator on my 1998 4000 Express feeds from and returns to ONLY the center tank (diagram from owners' manual attached). Priming instructions are in the "Fuel System" section of the Operators Manual (sharing mine here: [Only registered and activated users can see links Click here to register]) and just for giggles, I've attached the parts & maintenance schedule sheet to this message.
I can't share much practical experience with you just yet but I hope all the documentation helps.
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