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Old 11-16-2011, 01:43 PM   #15
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You can put a manual valve in the generator compartment and just go and shut the fuel off when you shut is down. Best not to load the generator during shut down.

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Old 11-16-2011, 06:26 PM   #16
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Yep, that's pretty much what I was planning on doing. Main fuel tank is almost at 3/4 full so I'll be attempting to start the genset some time this weekend. Been adding fuel with stabilizer at 5-gallon increments per day. The more I put fresh gas into her the better the engine starts and runs on the main coach. The ole 454 fires right up after a couple seconds of cranking and now has a very smooth idle. I'm hoping that the Onan follows suit.
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Old 11-16-2011, 06:31 PM   #17
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The bigger the carb jets the less of a problem you are going to have. The 454 has big jets so they are less likely to clog. I just finished cleaning the 4 carbs on my Concours 1000 motorcycle and it has 4 little tiny carbs with tiny jets that pick up stuff like mad.

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Old 11-21-2011, 07:41 AM   #18
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[QUOTE=92landyacht;1072633]I've heard that you will go through a lot of propane on extended periods without shore power when using a propane generator.

Our experience has been just the opposite. We think the propane lasts a long time. However, we use the same conservation steps as with water when dry camping. We use the generator sparingly. Fortunately the RV life style includes lots of outdoor activities, so we use the generator mainly once a day (mornings).
I suppose if we stayed parked with both A/C's running, the propane would be gone quickly,but that's not our idea of RVing. We also never use it while driving, because we have great dash A/C.
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Old 11-21-2011, 12:14 PM   #19
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IF your genni does not fire up and you dont have the expertise and parts to clean and rebuild your carb,I would strongly suggest you "LEAVE IT TO THE EXPERTS". I do small engine carbs everyday.ITS not just take em apart and clean.You must know where to clean and what to replace to afford trouble free operation.
Take it to an ONAN Dealer. It will not be cheap but it will be done rite and garunteed.
IF you plan on leaving you LY set for more than 30 days I strongly suggest you STA-BIL the fuel.1 1/2 OZ per 5 gallon of fuel. If you can afford it ADD STA-BIL and TOP OFF the tank.
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Old 11-21-2011, 12:55 PM   #20
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A good way to start engines that spend a lot of time sitting is to use an aerosol can of starting fluid (ether). The ether will fire off pronto and save a lot of cranking. Works like a champ.
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Old 11-22-2011, 07:47 AM   #21
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Well I attempted to start the generator yesterday. I drained the fuel in the line and ran the pump till I got fresh fuel. It took a while but it did eventually start. The problem is, I was never able to keep it running without holding what I think is a choke partially closed. No room to work on it so it looks like I'm going to have to drop the unit for a closer inspection. Does anyone have any suggestions on how to get it out? It looks to me like I'm going to have to jack up the RV to get clearance from underneath.
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Old 11-22-2011, 07:43 PM   #22
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I have a 1993 LY with the same 7000 genset. If you decide to tackle this project please post steps on what was involved. Airstream really missed the boat with this design, it's ridiculous you can't even remove the side cover without droping the whole generator.
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Old 11-23-2011, 01:13 PM   #23
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Local RV center just quoted me $300 to drop and reinstall the genset. They're saying if I bring in the RV to service the genset, they'll have to schedule the repair some time in the future. If I just bring in the genset, then they can work it in between jobs. Looks like, if I do it myself, I can save the $$$ and some time.

What I'm thinking is to jack up the genset side of the RV and put it on some (4) 6-ton jack stands. I should be able to get it high enough to drop the genset using a floor jack onto a couple of 4x4's. I can then just slide it out from underneath. I do have a 20-ton jack to jack it up but the jack can only lift about 8Ē. I may have to jack it up several times to get it high enough.

I'm thinking Iíll jack it up. Iíll then put the jack stands under, let it down onto the jack stands and then put the blocks under the jack in order to raise it up. I can then jack it up some more and extend the jack stands further or put blocks under the jack stands if theyíre at the safe limit. I think I'll have to raise the RV by about 16" before I'll be able to clear the genset and the 4x4's. The reinstall process should just be the reverse.

If I decide to do this I'll post pictures of the process.

Any suggestions on what else should be done while the genset is out? I was going to go ahead and replace all the plugs and filters. The RV center suggested replacing the fuel pump as well. It only has 414 hours on it but itís been sitting for at least 8 years.
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Old 11-24-2011, 08:22 AM   #24
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Sound like you have a jet clogged. Do you have to remove the generator to get to the carb?

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Old 11-24-2011, 09:30 AM   #25
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Any suggestions on what else should be done while the genset is out?

A friend last month bought a motorcycle jack for less than a hundred that might be worth getting for the job. Found online coupons combined with store specials.
I was going to use but with serious looking I found tailpipe(mh) was in way and genset tailpipe would need to be removed. I needed to replace second sp so I cut the shroud and gave enough room to go between frame and genset. For the fuel pump, it is mounted with just enough room to get to it but you need a mirror and flashlight to see. Would have been nice if AS would have made it more convenient to service, Onan prices are double what you were quoted. I have the bill's PO left for me.
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Old 11-24-2011, 11:36 AM   #26
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1933 ?
Maybe '34... hood vents not curved
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Old 11-25-2011, 05:08 AM   #27
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Onan

It's a 34. Photo was taken in Virginai on the way to the Glidden Tour in Cumberland Maryland, with 265 other pre WWII vehicles.
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Old 11-25-2011, 06:38 AM   #28
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Any suggestions on what else should be done while the genset is out? I was going to go ahead and replace all the plugs and filters. The RV center suggested replacing the fuel pump as well. It only has 414 hours on it but it’s been sitting for at least 8 years.

I played with the smaller version of one of these. It had a mechanic governor which basically controlled the cycles yours may or may not. I had it mounted on a 4 wheel cart so I could move it around. It had very few hours. The end game was I gave it to my nephew and bought a Honda genset. The issue was It was just a little to old to have the modern control systems and always needed tweaking. I did replace the fuel pump once just used an electric pump from the auto-store. I would get an electrician out and put a dummy load on it and have the governor adjusted under load, with today electronic gear clean power is a must. I used an old Kiln I had to load up the unit for adjustments, you may not have one laying around. Don't interpret my comments as negative they are what they are, If I owned the unit I would get it tweaked, verified for performance and put it back in. Blue lock tight any bolts or screws you remove, it will serve you well.

Jim
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