Welcome to the ONAN nightmare
There are several things to do. I finally got my ONAN working properly, but it took a lot of effort. 1) There is a load manager adjustment that adjusts the fuel flow depending on load. If you haven't touched this, then it may not need an adjustment 2) If the carb is out of adjustment, you will likely see some black smoke at the ONAN exhaust 3) I had to rebuild the carb, new floats, nozzles etc (you can get a kit for this) 4) Once the carb is rebuilt, you need to do a final adjustment with the load on, but you can only adjust the jets with a custom tool. This was the hardest part for me 5) If the float is stuck, you will see gas in your oil reservoir. This is what lead to my nightmare (gas in the oil) 6) The other issue is the electric choke...it floods the ONAN as it starts to fail. I removed the electric choke and put a manual cable in...now it runs much better. Check if the spark plugs are wet (this will determine if you're flooding) Let me know if you have further questions. Bob Harris 75 56 DC "Sentient Wave" 360-223-4816 ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of David Oates Sent: Monday, January 19, 2009 8:53 AM To: [email protected] Subject: [UnifliteWorld] Re: Onan generator My Onan is diesel , so I have no specific experience with the unit involved, but the first thing I usually hear is: Did you check the fuel filter? If you think it is running rich, do you see a lot of dark smoke from the exhaust? That could confirm a rich condititon. DavidO --- On Sun, 1/18/09, bushwood <[email protected]> wrote: From: bushwood <[email protected]> Subject: [UnifliteWorld] Onan generator To: "UnifliteWorld" <[email protected]> Date: Sunday, January 18, 2009, 8:24 PM Onan MCCK 6.5. Yesterday fired up the genny to let it run w/load and no probs. Today, I fired it up and first put a light load on it. Then I put the water heater on and genny RPMs dipped way down and wanted to die (first time it has done this). RPMs never recovered after this, even with no load. I think I can smell some fuel. Is it possible the carb float stuck and it's running way too rich? The genny has never been a problem. Are there any tricks to check before addressing the carb? Thanks </table ##################################################################################### This message and any attachments are solely for the use of the intended recipients. They may contain privileged and/or confidential information or other information protected from disclosure. If you are not an intended recipient, you are hereby notified that you received this email in error and that any review, dissemination, distribution or copying of this email and any attachment is strictly prohibited. If you have received this email in error, please contact the sender and delete the message and any attachment from your system. Thank You. ##################################################################################### --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "UnifliteWorld" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/UnifliteWorld?hl=en -~----------~----~----~----~------~----~------~--~---
