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Onan BGE, whats the difference?


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  #1  
Old 11-20-2017, 07:47:49 AM
DanT DanT is offline
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Default Onan BGE, whats the difference?

New poster. I have been reading for months and have learned a great deal allowing me to buy a $100 BGE and convert it to use in my home as a back up. I have strong mechanical skills, some wiring skills but little theoretical knowledge of power and generation.

All that said my question is: What is the difference between a BGE unit rated at 4000w, 5000w and 6500w. They look the same, seem to have the same engine. Is it a matter of internal wiring or windings or ?. Thanks for all the info and knowledge I have gained. DanT
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Old 11-20-2017, 08:32:51 AM
Russell Walker Russell Walker is offline
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Default Re: Onan BGE, whats the difference?

The up front dollars. I couldn't resist.
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Old 11-20-2017, 08:42:24 AM
Max Thompson Max Thompson is offline
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Default Re: Onan BGE, whats the difference?

Different generator ends.

I think these are the Emerald series, I II &III with the III being 6.5 KW. Depending on which spec. it is, they have electronic engine control and most have electronic voltage regulation.
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Old 11-20-2017, 12:38:18 PM
Pete Spaco Pete Spaco is offline
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Default Re: Onan BGE, whats the difference?

Well, they are similar, but they aren't the "same".

Here are a few numbers to show the difference between the 4.0BGE and the 6.5NHE:

desc BGE NHE
disp 48ci 60ci
wt 216 230
amps 32 46
width 18.8" 21.1"

Data from the 965-0528 service manual.

Pete Stanaitis
---------------

I guess I should have said that, as far as I know, a BGE IS a 4kw unit. If it's 6.5KW, then it's not a BGE. In the Emerald series, the 6.5KW unit would be an NHE.

Pete Stanaitis
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Old 11-20-2017, 01:01:31 PM
len k len k is offline
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Default Re: Onan BGE, whats the difference?

If you have electronic AC voltage reg (VR1), Clean your slip rings before making AC to protect it $$$.

BGE/NHE are Emerald series, I never figured out what the I, II, III, and Plus meant.( sort of seemed to correspond to first few spec numbers.

BGE was made in several kw ratings ~4, 4.5, and maybe a 3.5 and 5
NHE is similar design , but with larger engine ~ 960 CC and 6.5 kw rating.
Specs A-E have 8" current transformer voltage booster "reg" by starter, spec F+ have a true AC voltage reg (electronic).

BGM/NHM have horizontal shaft and are Marquis series , similar basic design with more of a cover and electronic gov. Believe all specs had electronic AC voltage reg. On BGM/NHM the stators are same, also rotors are same on specs A,B ( have not checked BGE/NHE)

Marquis series name was also used on a newer model design with vertical shaft.

Last edited by len k; 11-20-2017 at 04:27:54 PM.
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Old 11-20-2017, 02:24:27 PM
DanT DanT is offline
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Default Re: Onan BGE, whats the difference?

Great. So though they look alike but they are not alike nor are they the same motor/generator. Thanks!

Len: I had read the clean the slip rings advice and did so.

Mine was pretty simple. Rebuild the carb, change the oil, clean up the wiring, build a cart, cleans it, lube it, fire it. And..............119v steady and runs like a champ. It only has 86 hours on the meter.

I would like to take credit but think I was just lucky. Electronic ignition and nothing broke with no rodent or wasp nests. The guy said it wouldn't fire but it was 2 quarts low on oil so...... I did enjoy doing it so I will keep an eye out for another. Thanks again all.
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Old 11-20-2017, 02:49:47 PM
len k len k is offline
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Default Re: Onan BGE, whats the difference?

Quote:
Originally Posted by DanT View Post
What is the difference between a BGE unit rated at 4000w, 5000w and 6500w.
Way to tell is look in parts manual and see if engine block, stator, and rotor were same part numbers. It's not fool proof since just adding a drilled hole would change the part number,

-----------------

Looked at my NHM that I had left a roll of bath tisue next to, found they used it to make beginnings of a mouse nest in cooling fins near plastic ignition rotor. I called around and found farm stores have a spearmint/peppermint spray that supposed to repel mice. Supposedly vapors irritate their noses. They said it only lasts ~ 3 months and have to respray.

But I'm going to try it till I build a mouse proof box for it. Cheap insurance to avoid a no start in winter due to nest and broke plastic arms.

By the way you may be able to modify it to make 120/240 output, if interested ask me.

Last edited by len k; 11-20-2017 at 04:48:20 PM.
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Old 11-20-2017, 05:28:34 PM
scoops scoops is offline
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Default Re: Onan BGE, whats the difference?

Quote:
Originally Posted by DanT View Post
The guy said it wouldn't fire but it was 2 quarts low on oil so...... I did enjoy doing it so I will keep an eye out for another. Thanks again all.
Be warned! this is how the addiction begins!
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