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Onan Kubota Start Problem
10-27-2009, 09:11 AM
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#1
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Junior Member
Monaco Owners Club
Join Date: Jan 2005
Posts: 22
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96 Monaco Dynasty with Onan Kubota 8.0kw diesel genset. Just changed air filter, engine oil and filter and fuel filter. Now the darn thing spins over but won't start.. Yep, I filled the oil/water fuel filter and bleed out the system as detailed ... now it will not fire up... NOW WHAT ??? please, it is sitting there waiting for me to do something.
Thanks
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Kelly, Linda and too many cats !!
96 Monaco Dynasty Baron
New Orleans, LA
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10-27-2009, 10:06 AM
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#2
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Senior Member
Join Date: Nov 2008
Location: Cosby, Tn
Posts: 384
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Have you held the stop switch down for a minute or so to run the fuel pump long enough to build up some fuel pressure. I suspect that you have some air in the fuel line & that is causing your "no joy" situation. That would also be the easiest thing.
Good luck
Steve O
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10-27-2009, 10:39 AM
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#3
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Junior Member
Monaco Owners Club
Join Date: Jan 2005
Posts: 22
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Hmmmmm, not that long... I am headed off to give it a while...Letcha know how it turns out. Thankis
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Kelly, Linda and too many cats !!
96 Monaco Dynasty Baron
New Orleans, LA
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10-27-2009, 11:52 AM
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#4
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Junior Member
Monaco Owners Club
Join Date: Jan 2005
Posts: 22
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Held the prime down for a minute plus... just turns and turns... added a shot (Gawd forbid) of ether... that spun the engine but it did not catch. Ok, so I called local diesel mech to come and have a visit. thanks
__________________
Kelly, Linda and too many cats !!
96 Monaco Dynasty Baron
New Orleans, LA
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10-27-2009, 04:17 PM
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#5
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Senior Member
Texas Boomers Club Fleetwood Owners Club Freightliner Owners Club
Join Date: Jul 2008
Location: Don't mess with Texas
Posts: 2,999
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Just for grins. You do have more than a 1/4 tank of fuel. It will not pick up fuel if less than 1/4 tank. Just a thought.
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10-27-2009, 05:31 PM
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#6
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Junior Member
Monaco Owners Club
Join Date: Jan 2005
Posts: 22
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That is a fair and resonable question... and yep, plenty of fuel... Just a thought, I have the hp fuel system bled... how about the low pressure fuel system ? Could I have dropped prime there to ?
__________________
Kelly, Linda and too many cats !!
96 Monaco Dynasty Baron
New Orleans, LA
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10-27-2009, 06:14 PM
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#7
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Member
Fleetwood Owners Club Vintage RV Owners Club Appalachian Campers Ford Super Duty Owner
Join Date: Feb 2009
Location: Savannah Ga
Posts: 77
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Is the fuel shut out valve engaging open to allow fuel, when you depress the start switch?
__________________
David & Lila
95 American Eagle,
2001 Exiss SS/413 MB LQ 413 BK(horse trailer with living qtrs) & 1999 F350 SD PS 4x4
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10-27-2009, 06:36 PM
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#8
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Junior Member
Monaco Owners Club
Join Date: Jan 2005
Posts: 22
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Fuel Cut out switch ????? Uhhh, lemme go read the darn manual again...Thanks
__________________
Kelly, Linda and too many cats !!
96 Monaco Dynasty Baron
New Orleans, LA
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10-27-2009, 07:02 PM
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#9
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Member
Fleetwood Owners Club Vintage RV Owners Club Appalachian Campers Ford Super Duty Owner
Join Date: Feb 2009
Location: Savannah Ga
Posts: 77
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If it does not engage the engine will not start (no fuel). All diesels have fuel shut of valves/solinoids that control fuel to the engine. I had to replace mine ( it would not engage) several weeks ago. Mine is a older unit and it was easy to trouble shoot because you can see the solinoid. I actually manually engaged mine and started the engine. Good luck. Oh, sometimes they will just stick due to dirt or grime build up.
__________________
David & Lila
95 American Eagle,
2001 Exiss SS/413 MB LQ 413 BK(horse trailer with living qtrs) & 1999 F350 SD PS 4x4
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10-28-2009, 06:55 AM
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#10
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Junior Member
Monaco Owners Club
Join Date: Jan 2005
Posts: 22
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Thanks, but the fuel cut out switch is working fine... I get fuel out of the bleed screws... I must be missing something... oh... a call from my engine tech telling me he is coming to visit...
__________________
Kelly, Linda and too many cats !!
96 Monaco Dynasty Baron
New Orleans, LA
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10-30-2009, 04:44 PM
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#11
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Junior Member
Monaco Owners Club
Join Date: Jan 2005
Posts: 22
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RUNNING !!! I went through entire system again, nada !! Finally, with help of Playtyme R V's Sales & Service ((504) 362-1318 1415 Hancock St, Gretna, LA 70053)) we determined the injectors were not getting fuel (even after several bleeds), so we buttoned the system and agreed to work further on it at the shop this Monday.
While the boss was cleaning up his older and slightly off assistant borrowed the 3/4 inch open end, laid his hand on the injector pump, made what I assume to be the sign of the Cross (I hope) and said "start er up"... I proceed to the cab, lit the glow plugs for about 6 seconds and hit the starter... The son-of-a gun started right up.... HAPPY HALLOWEEN... New Orleans style ... (Honest to Monaco, this happened..)
__________________
Kelly, Linda and too many cats !!
96 Monaco Dynasty Baron
New Orleans, LA
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10-31-2009, 05:21 AM
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#12
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Member
Fleetwood Owners Club Vintage RV Owners Club Appalachian Campers Ford Super Duty Owner
Join Date: Feb 2009
Location: Savannah Ga
Posts: 77
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So huh,---------what fixed it? I believe everyone suspected fuel problems. Did the tech find something wrong on the pump? Was the guy a healer? 
__________________
David & Lila
95 American Eagle,
2001 Exiss SS/413 MB LQ 413 BK(horse trailer with living qtrs) & 1999 F350 SD PS 4x4
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10-31-2009, 07:40 AM
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#13
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Junior Member
Monaco Owners Club
Join Date: Jan 2005
Posts: 22
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Just in case he was a Healer I got his cell number and will be glad to share if you are in need of his services when in the New Orleans area... Service calls start with a 100.00 bill.
I believe, in my limited experience with diesels, there was an air lock in the injectors... once they got fuel to everywhere it was supposed to be the engine decided it was satisfied and went back to work.
Again Thanks to all... It was a great way to get to know your Onan Kubota genset...
__________________
Kelly, Linda and too many cats !!
96 Monaco Dynasty Baron
New Orleans, LA
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