GMCforum: GMCnet » Onan issue

Home » Public Forums » GMCnet » Onan issue

Show: Today's Messages :: Polls :: Message Navigator

Re: [GMCnet] Re: Onan issue [message #366859 is a reply to message #366824]

Sun, 19 September 2021 02:28

Ken Burton

Messages: 10030
Registered: January 2004
Location: Hebron, Indiana

Karma:

Senior Member

1. Like Sully, I previously suggested suspending a temp tank above the Onan and connecting it
direct to the carb. I hope that is what you did. Run it until it quits. Then see if there is gas in the float bowl. The higher you suspend the tank the more fuel pressure you will have at the carb.

2. The LOP switch grounds when there is no oil pressure. Simply unplug it and then ONAN will run. I would not run it for long that way in case you have a real oil pressure problem.
Run it connected and when it starts to fail disconnect the wire. You could also make to a couple of short, 12" or so, jumpers and run them to the outside of the Onan. Hook one them to the disconnected switch wire and the other to the switch terminal. The other ends of those 2 jumpers can be connected together outside of the ONAN where you can easily get to them and disconnect them when it starts to fail.

3. I doubt the above will be necessary since you already tried pin 5 jumpered to pin 9 and that eliminates the LOP circuit operation.

In the end you need to diagnose and decide for sure if you are shooting a fuel or an electrical problem. Otherwise 50% of the time you are spinning your wheels in the wrong part of the Onan.

Good Luck. This sounds like one mean bug.

Ken B.

sgltrac wrote on Thu, 16 September 2021 10:52

Jon,

Set it up with a remote tank of known clean fuel and suspend it above the
onan. Plumb it directly to the carb inlet upstream of the fuel pump. If you
still have the same problem with this gravity feed system I think you
should be able to rule out fuel supply and fuel pump.
JWID

Sully
Bellevue wa.

On Thu, Sep 16, 2021 at 6:29 AM Jon Roche wrote:

> I was under the impression, if you jumper from pin 9 to pin 5, and start
> the generator, that you are basically by-passing everthing on the control
> board including the LOP. so that is all that we have done.

Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana

Report message to a moderator

[Message index]

		Onan issue By: lqqkatjon on Sun, 05 September 2021 16:45
		[GMCnet] Re: Onan issue By: James Hupy on Sun, 05 September 2021 16:59
		Re: Onan issue By: JohnL455 on Sun, 05 September 2021 17:37
		Re: Onan issue By: Matt Colie on Sun, 05 September 2021 18:56
		[GMCnet] Re: Onan issue By: bdub on Sun, 05 September 2021 19:48
		Re: Onan issue By: Larry on Sun, 05 September 2021 20:46
		Re: Onan issue By: lqqkatjon on Sun, 05 September 2021 20:52
		Re: Onan issue By: Carl S. on Sun, 05 September 2021 21:36
		Re: Onan issue By: lqqkatjon on Tue, 14 September 2021 12:19
		[GMCnet] Re: Onan issue By: sgltrac on Tue, 14 September 2021 12:35
		Re: Onan issue By: lqqkatjon on Tue, 14 September 2021 14:13
		Re: Onan issue By: JohnL455 on Tue, 14 September 2021 14:54
		Re: Onan issue By: lqqkatjon on Tue, 14 September 2021 17:59
		Re: Onan issue By: Larry on Tue, 14 September 2021 19:43
		Re: Onan issue By: Larry on Tue, 14 September 2021 19:45
		Re: Onan issue By: Carl S. on Wed, 15 September 2021 10:57
		[GMCnet] Re: Onan issue By: Billy Massey on Wed, 15 September 2021 11:04
		[GMCnet] Re: Onan issue By: sgltrac on Wed, 15 September 2021 11:31
		Re: [GMCnet] Re: Onan issue By: Carl S. on Wed, 15 September 2021 16:23
		[GMCnet] Re: Onan issue By: James Hupy on Wed, 15 September 2021 16:55
		[GMCnet] Re: Onan issue By: jimk on Wed, 15 September 2021 18:58
		[GMCnet] Re: Onan issue By: sgltrac on Wed, 15 September 2021 19:34
		[GMCnet] Re: Onan issue By: jimk on Wed, 15 September 2021 22:55
		[GMCnet] Re: Onan issue By: sgltrac on Wed, 15 September 2021 23:13
		Re: Onan issue By: lqqkatjon on Thu, 16 September 2021 08:28
		[GMCnet] Re: Onan issue By: jimk on Thu, 16 September 2021 10:17
		[GMCnet] Re: Onan issue By: sgltrac on Thu, 16 September 2021 10:52
		Re: [GMCnet] Re: Onan issue By: Ken Burton on Sun, 19 September 2021 02:28
		Re: [GMCnet] Re: Onan issue By: seeburg220 on Sat, 24 June 2023 14:43
		Re: Onan issue By: dmumert on Thu, 16 September 2021 10:28

Previous Topic:	Photo site issues
Next Topic:	worn drawer slides on 6KW Onan

Goto Forum:

-=] Back to Top [=-

Current Time: Tue Jun 18 07:32:19 CDT 2024

Total time taken to generate the page: 0.00771 seconds