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Onan Generators

Onan BGE, should I just put it on the railroad tracks?


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  #11  
Old 08-10-2017, 09:19:01 PM
TurboTaco TurboTaco is offline
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Default Re: Onan BGE, should I just put it on the railroad tracks?

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As for the title of this thread - "Onan BGE, should I just put it on the railroad tracks?" do NOT put it on the railroad tracks. It will derail a speeding locomotive causing a massive pileup and most likely only scratch a tin or two on the Onan .
Lol, there is quite a bit of love for these Onans out there. Don't worry, the genset is safe.

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*** Forgot to mention - Since you already opened the carburetor, ensure the flow adjustment is within spec since it may have been disturbed when you cleaned it.
Do you mean the float height or main/idle jet adjustment?
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Old 08-10-2017, 09:37:26 PM
JohnnyC JohnnyC is offline
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Default Re: Onan BGE, should I just put it on the railroad tracks?

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Originally Posted by TurboTaco View Post

Do you mean the float height or main/idle jet adjustment?
Yup, float, not flow...
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  #13  
Old 08-10-2017, 10:45:07 PM
len k len k is offline
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Default Re: Onan BGE, should I just put it on the railroad tracks?

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Originally Posted by TurboTaco View Post

.....Onan BGE, should I just put it on the railroad tracks?.....

I will clean the carb once more this weekend. I've just about had it with this genset.
Could put it on a pallet on a railroad car with my address on it
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Old 08-10-2017, 11:04:26 PM
slip knot slip knot is offline
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Default Re: Onan BGE, should I just put it on the railroad tracks?

The newer chemdip carb cleaner isn't the same as it used to be. I've used both and have been disappointed with the newer stuff. A bud of mine has a shop and he gets a safety kleen product that has a basket that agitates as it soaks. it works much better than the old soak baskets.

And 5 minute epoxy works good to seal up those peaky blown out welch plugs. don't ask
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  #15  
Old 08-10-2017, 11:17:04 PM
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Default Re: Onan BGE, should I just put it on the railroad tracks?

It also could be the governor. There is a sensitivity adjustment on them. Look in the manuals that Kevin posted.
When you said that the previous owner fiddled around with it, that kind of makes me leery that he might not know his Butt from a Hot Rock. People like that should keep their hands in their pockets when trying to work on something that they have absolutely NO Clue about. You'll get it right!
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Old 08-11-2017, 07:40:06 AM
KPack KPack is offline
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Default Re: Onan BGE, should I just put it on the railroad tracks?

I believe Lenk was saying to use a piano wire in those passages I know there's one half way up the stem of the main jet that's hard to get too. I may have a parts machine if you need anymore parts.

---------- Post added at 06:40:06 AM ---------- Previous post was at 06:03:55 AM ----------

I have two parts machines but don't know the spec both tins are gone with the model number. Need a picture of the choke on the carb to tell. Is your choke working properly ?
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Old 08-11-2017, 08:14:35 AM
uglyblue66 uglyblue66 is online now
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Default Re: Onan BGE, should I just put it on the railroad tracks?

I can't help much on Onan in it's self but I have used a hot plate I bought at a yardsale to literally boil a carburetor in a pot to help clean it. It make take drastic action like this to clean the carb well.

do it outside.
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Old 08-11-2017, 09:10:40 AM
armandh armandh is offline
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Default Re: Onan BGE, should I just put it on the railroad tracks?

surging can be caused by the positions of the governor spring ends relative to the travel of the gov. arm.

"higher" at the "fixed" or speed adjustment end creates inverse feedback that dampens surging

too much makes the generator less responsive to load changes.
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Old 08-11-2017, 11:22:03 AM
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Default Re: Onan BGE, should I just put it on the railroad tracks?

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Originally Posted by Kevin K View Post
...Another possible cause is an air leak in the sealant between the two halves of the intake manifold. The voltage regulator has nothing to do with the surging problem.

Plug a 1,500 watt heater into the generator and see if the surging stops. This would confirm it is the idle passages that are plugged.
I'd advise NOT ignoring Kevin's insight here. But I'd add that if the surging stops when the 1500W load is connected, that could also point to an air leak.
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Old 08-11-2017, 12:52:38 PM
len k len k is offline
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Default Re: Onan BGE, should I just put it on the railroad tracks?

I'ld do the simple stuff first, like recleaning the carb and testing with a 1500W load. Lot of people not familiar with carbs had to clean them a couple times till they got it right. Usually carbs are not heavily corroded. Tell us what your carb looks like inside, little dirty or white with water corrosion.

Surging can be the gov, but is usually the carb. I'ld reclean carb first and make sure you take out and clean the 2 long jet tubes in casting tube that dips into bowl. Besides you want carb operating right before you adjust gov.
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