 |
03-25-2017, 08:44 PM
|
#1
|
|
Junior Member
Join Date: Mar 2017
Posts: 15
|
Onan diesel 8.0 starts, won't idle
I have a 95 Onan Genset 8.0 diesel. It will start, but won't idle. If you half the throttle open it will run fine; just not at idle. I know this question has probably been asked a hundred times, but I could not find it.
Thank you.
|
|
|
 |
Join the #1 RV Forum Today - It's Totally Free!
iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!
You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!
|
|
03-25-2017, 09:40 PM
|
#2
|
|
Senior Member
Join Date: Dec 2016
Location: So Cal
Posts: 1,374
|
Any trouble code lights flashing before you start the genset at the start switch on the side of the generator??
|
|
|
|
|
03-25-2017, 10:16 PM
|
#3
|
|
Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,903
|
I suspect a dirty fuel system may be involved. I suggest adding a fuel system cleaner in the proper proportion(or a bit more) to the fuel tank and running the genset a few hrs to insure the cleaner has passed through the fuel system.
If that doesn't help then you can think about spending money on the problem, like change fuel filter, change fuel pump, etc.
__________________
2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
|
|
|
|
|
03-26-2017, 05:13 AM
|
#4
|
|
Senior Member
Join Date: Oct 2011
Posts: 1,058
|
Tolazy2
Have you ever changed the fuel filter?
The symptoms you have described are typical of a restriction of fuel flow at idle.
My fuel filter, and I believe yours might be too, is cylinder shaped and can be accessed at the bottom of the generator. It is typically held into place with a large cushion clamp and the fuel line on each end are band clamps that you can get off with needle nose pliers.
You will know it is more than likely the filter once you remove it and try to blow air through it. Under normal conditions, you shouldn't have any resistance. If you do, naughty....naughty filter.
When you put the new filter on, you may want to use the appropriate size stainless steel hose clamps on both sides of the fuel hose instead of the band clamps which will make it easier for future exchanges and you won't need a set of crimping pliers.
Good luck and please report back to the forum for the benefit of others.
|
|
|
|
|
03-27-2017, 07:38 PM
|
#5
|
|
Junior Member
Join Date: Mar 2017
Posts: 15
|
Well, it was none of the above. Turns out, it is the fault switch. Once, I reset it, the generator ran fine. But, now it leads to another problem. The generator will run for ten to fifteen minutes, the the fault switch will trip again. Any ideas?
|
|
|
|
|
03-27-2017, 07:45 PM
|
#6
|
|
Senior Member
Join Date: Oct 2011
Posts: 1,058
|
Tolazy2,
On that model, do you get a fault code illuminated anywhere?......can you give me the model number and year of your generator?
Sent from my SAMSUNG-SM-G920A using iRV2 - RV Forum mobile app
|
|
|
|
|
03-27-2017, 08:55 PM
|
#7
|
|
Junior Member
Join Date: Mar 2017
Posts: 15
|
I don't see a place for any codes, or have not located yet. The model is 8DKDFJ and is in a 96 Fleetwood.
|
|
|
|
|
03-28-2017, 04:27 AM
|
#8
|
|
Senior Member
Join Date: Oct 2011
Posts: 1,058
|
Tolazy2
I sent you a personal message off-forum regarding the Service Manual for your genset.
|
|
|
|
|
04-06-2017, 05:17 PM
|
#9
|
|
Junior Member
Join Date: Mar 2017
Posts: 15
|
Ok. So it was overheating and tripping the fault breaker. A new thermostat and fan belt, and back up and running. Thanks to everyone for their help.
|
|
|
|
|
04-07-2017, 04:16 AM
|
#10
|
|
Senior Member
Join Date: Oct 2011
Posts: 1,058
|
Thanks for getting back to us, now you and all the others that followed this thread can help someone in the future.
Hope your jacks are behaving now as well.
|
|
|
|
|
04-07-2017, 06:52 AM
|
#11
|
|
Senior Member
Join Date: Aug 2008
Location: Georgia
Posts: 8,638
|
Quote:
Originally Posted by tolazy2
I have a 95 Onan Genset 8.0 diesel. It will start, but won't idle. If you half the throttle open it will run fine; just not at idle. I know this question has probably been asked a hundred times, but I could not find it.
Thank you.
|
Sorry I don't know what's wrong, but I do know if you hold throttle open is a No no.
__________________
2007 Fleetwood Revolution LE 40V
|
|
|
|
|
04-07-2017, 07:30 AM
|
#12
|
|
Junior Member
Join Date: Mar 2017
Posts: 15
|
Quote:
Originally Posted by Toribk
Thanks for getting back to us, now you and all the others that followed this thread can help someone in the future.
Hope your jacks are behaving now as well.
|
They are. You were right, just lie on oil.
|
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Linear Mode
