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Old 05-30-2016, 05:07 PM   #239
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Originally Posted by PeterH-Airstreamer View Post
Just curious, if you go through all the trouble of making a new bottom, why don't you get a new generator and cut only the holes needed for that new genny. Every time, I replaced a generator, I had to cut completely different holes for air intake and exhaust, not leaving much metal to hold the heavy gen. After all those old Generators are nothing but trouble and according to Onan, Boat anchors at best
I certainly don't mind spending Martin's money!

Although personally I think the old Onan generators are pretty decent units.
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Old 05-30-2016, 06:35 PM   #240
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Any suggestions on make/model you would fit Peter?
Since they dont make the Honda watercooled anymore, I would get a 4kw Onan. Martin, if you plan on hanging out in the south, the biggest gift you can make yourself (and your DW) is a reliable Generator. Summer is brutal down here.
http://www.electricgeneratorsdirect....000/p6212.html
Not sure if you have enough room

Dimensions:30"L x 19.7"W x 14.4"H
(76.20 x 50.04 x 36.58 cm)
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Old 05-30-2016, 06:39 PM   #241
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...

Although personally I think the old Onan generators are pretty decent units.
Both of the late 70's Onans I had before ran perfectly until I really needed them
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Old 05-30-2016, 06:41 PM   #242
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Tripped the "critical need detector", huh?


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Old 05-30-2016, 07:03 PM   #243
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Quote:
Originally Posted by PeterH-Airstreamer View Post
Since they dont make the Honda watercooled anymore, I would get a 4kw Onan. Martin, if you plan on hanging out in the south, the biggest gift you can make yourself (and your DW) is a reliable Generator. Summer is brutal down here.
http://www.electricgeneratorsdirect....v00/p6212.html
Not sure if you have enough room

Dimensions:30"L x 19.7"W x 14.4"H
(76.20 x 50.04 x 36.58 cm)
I'm not sure I'd like this particular model. It runs at 3600 rpm which is double the older units. Every generator I've seen that turns that fast is noisy and has a lot of vibration.
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Old 05-30-2016, 07:21 PM   #244
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I'm not sure I'd like this particular model. It runs at 3600 rpm which is double the older units. Every generator I've seen that turns that fast is noisy and has a lot of vibration.
I noticed the 3600 rpm, but still at 68 decibel. Seems that all the new Onan/cummins run at 2400 or 3600.
The 2 Honda's I had both ran at 3600, vibration free
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Old 05-30-2016, 07:28 PM   #245
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the Onan emerald I still ran at 1800
http://www.ebay.com/itm/Cummins-Onan...QAAOSwepZXSNsV
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Old 05-31-2016, 05:30 AM   #246
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the Onan emerald I still ran at 1800
http://www.ebay.com/itm/Cummins-Onan...QAAOSwepZXSNsV
I have an Onan 6.5 Emerald III that I'll be installing in my Argosy. Surprisingly the 6.5 is smaller than the older 4.0 BFA Onan generators.

Looking closer at Peanut's generator compartment I'm not sure anything will fit but another BF or BFA. If you look back at post 232 you'll see the section of floor pan that I had to remove to fit around a boxed section of the compartment. The cutout is about 12" x 3" which is a pretty significant chunk of out of the floor. According to the Emerald I specs it is 19" deep and the floor that I had fabricated is 20" deep.

This is going to be one of those cases where research and dimension checking will be important!


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Old 05-31-2016, 05:33 AM   #247
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I noticed the 3600 rpm, but still at 68 decibel. Seems that all the new Onan/cummins run at 2400 or 3600.
The 2 Honda's I had both ran at 3600, vibration free
I find it odd that the newer generators are running at higher rpms. I wonder if surge recovery is more difficult to achieve at 1800 compared to 3600 rpm?

Maybe the engine has to be physically larger if it runs at 1800 compared to 3600.
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Old 05-31-2016, 07:00 AM   #248
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Originally Posted by bkahler View Post
I have an Onan 6.5 Emerald III that I'll be installing in my Argosy. Surprisingly the 6.5 is smaller than the older 4.0 BFA Onan generators.

Looking closer at Peanut's generator compartment I'm not sure anything will fit but another BF or BFA. If you look back at post 232 you'll see the section of floor pan that I had to remove to fit around a boxed section of the compartment. The cutout is about 12" x 3" which is a pretty significant chunk of out of the floor. According to the Emerald I specs it is 19" deep and the floor that I had fabricated is 20" deep.

This is going to be one of those cases where research and dimension checking will be important!


Brad
On this basis I don't think even a little Honda EV4000 RV would fit in.



and I am sure even the Onan 4.0 BFA in the donor is bigger



Seems like I need to keep my fingers crossed the BF will run OK!
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Old 05-31-2016, 07:35 AM   #249
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If the Honda is a true rectangle then it likely won't fit and I think you're right in that the BFA is somewhat bigger than the BF.

The generator floor dimensions are 31-1/4" wide (side to side), 19-3/4" deep and floor to ceiling is about 22". The physical opening through the shell is a shade under 28-1/2" in width. The actual height of the opening in front is slightly less than 20" due to the way the opening in the shell is made.

With the original configuration where the floor was welded in place the generator had to fit through the 28-1/2" wide by 19-1/2" tall opening. I found when removing Peanut's generator that pivoting the generator around so the blower end came out first seemed to work. The most difficult part was lifting it over the 1" lip in front.

If I had it to do over again I would have made peanut's floor with the lip in front turned down which would make things easier to slide in and out. In fact I may end up cutting that front lip off and putting an angle iron stiffener underneath. The only problem with that approach is the access cover uses that up turned lip as a stop along the bottom edge but I'm sure I can figure something out to solve that problem.

I have a 4.0 BFA generator sitting in my shop and I'll check this week to see if it will fit inside the opening. The good news is as long as the generator will fit the floor pan it will work because the floor is now removable and the whole assembly can be raised into place.
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Old 05-31-2016, 06:18 PM   #250
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Well if the need does arise to use a different generator modifying the back corner of the existing enclosure won't be much of a problem. The only thing back there is the battery feed and fuel feed for the generator. Not sure why Airstream wasted space like they did.
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Old 05-31-2016, 06:29 PM   #251
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If the Honda is a true rectangle then it likely won't fit and I think you're right in that the BFA is somewhat bigger than the BF...
Brad, Yes, the Honda EV4010/6010 is a true rectangle and sits on its own tray. Since its watercooled with a small radiator, it needs less holes cut in the bottom.
But they do not make them anymore, parts are still available, but I would think twice about trying to find a used one.
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Old 05-31-2016, 07:03 PM   #252
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Brad, Yes, the Honda EV4010/6010 is a true rectangle and sits on its own tray. Since its watercooled with a small radiator, it needs less holes cut in the bottom.
But they do not make them anymore, parts are still available, but I would think twice about trying to find a used one.
I had been researching the older EV 4000 RV Peter. There are a few 'dubious' units around but this one in Spokane looks to be very good, http://spokane.craigslist.org/for/5561634494.html



Mind you the basis of me even looking is Honda = reliability and maybe that wasn't the case for the older units?
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