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Old 07-12-2013, 08:47 PM   #71
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Re: Lets talk AC again

I tried that too. Added a external pump and boat tank and had same results. Not to say I did it right either though....
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Old 07-13-2013, 05:07 AM   #72
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Re: Lets talk AC again

The needle seat for the fuel (that is valve for filling fuel bowl) can bounce on its seat,which can lead to over filling the fuel bowl,at that time it will go out the vent orifice and flood out engine.

Best bet would be a propane kit...just like on an old carb'd truck
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Old 07-13-2013, 12:39 PM   #73
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Re: Lets talk AC again

Quote:
Originally Posted by bansil
... Best bet would be a propane kit...just like on an old carb'd truck
That is what we will be doing. While some stationary generators are used driving down the road, we feel a tri-fuel kit fron us carb on a cheap HF Predator generator will suit our occasional needs. My pricing is showing I can buy a 7K running watts gas generator plus the kit to create a 7K running watts lp generator for right at $1K. I could buy the same generator with the same kit already installed for $1,500. But we can drive a long ways on $500 worth of diesel!
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Old 07-13-2013, 03:34 PM   #74
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Re: Lets talk AC again

Yup, that's my plan as well. I have an old 5k onan that I plan to convert to propane.
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Old 07-13-2013, 03:43 PM   #75
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Re: Lets talk AC again

I think by going to propane you will suffer performance, economy and fuel costs. Curious to hear how it turns out.
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Old 07-13-2013, 04:12 PM   #76
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Re: Lets talk AC again

I have a LP powered 7k onan that I am going to be installing in mine. Once I get to that point. Since mine is gas powered I may consider doing maybe a dual fuel but I will make that decision later. I have read that when you take a gas unit to propane its performance does fall some. I know from HVAC class that propane has less btu count that gas does this is more than likely the reason for fall in performance.

The Onan needed a new demand regulator. I purchased one from this company... http://propane-generators.com/ very good experience. They were very helpful. So for those who are thinking about converting.... I would look there. Prices seemed reasonable to me?

Thought I would share this with those. I know this has gotten off topic of AC but they seem to run hand and hand cause you need power to cool things down.
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Old 07-13-2013, 05:02 PM   #77
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Re: Lets talk AC again

This really makes me wonder why there isn't a gas powered AC? That would make the world a better place.....lol
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Old 07-13-2013, 05:30 PM   #78
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Re: Lets talk AC again

It really is alot of money and work just to have AC in the bus. For me alot of frustration too. Lorna, Bapos, I had not seen those lp conversions before. I've spent most of the afternoon reading up on them. I told myself I wasn't going to spend any more money on that generator. Now I'm scratching my head thinking to myself, that just might work. Then I think, that just might not work. Now I have a headache Any other brands out there? I read one lengthy thread on an airstream forum from about 4 years ago not liking us carbs service etc, etc. I'm really close to trying it tho.... Just don't want to waste another $2-300 if it doesn't fix my problem.
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Old 07-13-2013, 05:48 PM   #79
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Re: Lets talk AC again

In the world of 4wheeling (10 years ago or so) you had 2 options to allow you to go at crazy angles and bouncing 1 was fuel injection....the other was propane.

FI was $$ or you settled for a tbi unit which could wrk but mostly ran rich

Performance was lost at first because of the btu issue...however 120+ octane propane ment that a built 11or 12:1 engine was now doable and you could make up power loss cheap(sb chevy)

Now a days dang near all jy engins for swaps ls(which ever number) is FI.
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Old 07-13-2013, 06:22 PM   #80
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Re: Lets talk AC again

You need to do your own research to see if this will fit your needs. I believe that it will fit ours as I have researched the pro's and cons of the various fuel systems.

1. We will rarely use a generator.
2. We have had problems in the past with a gummed up carb on a gas Onan (lousy Onans).
3. We are willing and able to carry extra LP with us.
4. Converting one ourselves will save us a hefty chunk of change.

So with that in mind, here is my response, for what it's worth...

The way I understand it, by going with a no drill conversion kit, the running watts output will stay the same. I'm not sure how but I was exchanging PMs with a guy who had converted a total of 4 gas generators to tri-fuel. He loves the set up. Measured output on all and claims to have not lost any power with the conversion. Also claims to have gotten better mileage out of a 20 lb tank than what the naysayers claim you get. From all the info of folks who have done this, you can change oil less frequently. Unlike RV generators, contractor gennys do not have oil filters, they just use a magnet in the oil.

So following his example... I need Kit C ($187), a Gas generator with electric start (on sale $600) and and this and misc bolts and gas lines. NOT INCLUDING THE IRON PIPE FOR GAS. We have to run the iron pipe back there anyway. We figure on carrying up to 5 or 6 20lb LP tanks under the bus. The generator will also need a small (better) muffler added for our sanity. I have read that gold wing motor cycle mufflers (motorcycle muffler for a 4 stroke 100 to 200cc bike) will work nicely on a contractor generator. Makes them very quiet. We also have to remove the gas tank and cut down the frame in order for it to mount under the bus. We will see if we can add some baffling that will absorb some of the enigine noise without restricting the air flow as this type of generator need lots of air flow around it. Most of the noise is attributed to the engine not the exhaust. I'm hoping we can install a permanent mount genuri to suck the exhaust up above the bus since we will be using the generator mostly in parking lots, truck stops, rest areas or on a wide shoulder of the road if necessary (been there, done that, wish we had been better set up for it).

The Predator generators are under the name of Century. They sell already converted tri-fuel generators.

Just one of the many "conversations" I've had on this subject. (so many were in PMs)
Quote:
http://www.rvnetwork.com/index.php?s...=3#entry565485
I called both Central Marine Diesel and US Carburetion today and priced out 2 Yamaha 2000 with shipping, 2 low pressure hoses, and cable for RV. First I bought my Honda kit from US Carburetion and was impressed then with their support. Today, Central Marine support was not as effective on questions I asked between both vendors. There was a $174 difference between both with US Carburetion being the most expensive. However they also sell their units with the optional Tach and hour meter as standard so that is most of the difference.

I did run a test in South Texas when I had my Honda 2000. I had made a 5 gal gas tank for it. I ran a run down test using first 5 gal gas and then a BBQ propane tank with 4.7 gal of propane. I was using our Casita and keeping it cool with the A/C. I got just under 3 days with both and the propane was just under and hour less total run time than the gas. Now I could not control all the variables but I was quite pleased as all the reports say propane is not as efficient. That seems to be what I saw also but not by enough to be an issue for me.
You may want to back up and read the whole thread on potable generators. Keep in mind, this is from the Escapees forum, the place where they advocate and encourage damaging a generator simply because it is too loud for them under the guise of "just joking". But if you read the replies, they are not joking. Fair warning! Should I EVER end up having my personal property damaged deliberately, I advocate getting their tag number (so I can post it all over the internet), taking photos of the multiple flat tires that "Karma" visited upon them for their destructive deed and posting it on the internet with a warning to others who may park near them. I also plan on having a sign that reads "WARNING! KEEP YOUR DISTANCE! LOUD NOISY CONTRACTOR GENERATOR ON BOARD & I'M NOT AFRAID TO USE IT." Going to make it into a couple of bumper stickers and put it on both bumpers. Or make big, really big... stick it in the front windshield to use as a privacy curtain.

Don't park next to us in a parking lot.
On edit: another that shows the genny we plan on buying and how loud it is. I keeps seeing that the engine is a Honda clone. Made from the same casting forms. That means they most likely put a dirt cheap muffler on the unit which is why it's so loud.
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