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Old 04-21-2015, 08:54 PM   #1
Join Date: Apr 2015
Location: Deep East Texas
Posts: 40
1986 Pace Arrow P30 Chassis A/C question

Hello all, I am a newbie to the RV world, but not to the mechanical side of things. My wife and I purchased this old dinosaur for a decent price, knowing it needed some work. I have pretty much gotten everything working, replaced the rooftop AC unit and gone over the engine, a 454 with 53,000 miles on it. My question is this. The original AC for the cabin is shot and until I get a chance to replace it, is it ok to run the generator while driving down the road to power the rooftop unit? It has an Onan 6.5 kw with 38 hours on it and functions fine and is fed via the RV's fuel tank. Also, just how much fuel will it burn per hour if this is acceptable to do?
Many thanks in advance!

John Talbott
1986 Pace Arrow M-R
P30 Chassis, 454, 30ft, (The Beast)
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Old 04-21-2015, 10:25 PM   #2
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Yes, do that. Half gallon an hour.

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Old 04-22-2015, 01:13 AM   #3
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Yes, running house air on the genny while during is common to do. Even when working the dash air likely may not cool enough and you will find yourself running the house air. You may want to rethink fixing the dash air at all.
Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
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Old 04-22-2015, 07:14 AM   #4
Join Date: Apr 2015
Location: Deep East Texas
Posts: 40
Thank you! I know I can fix the dash air, but was dreading it. These old dinosaurs have some room in the engine compartment, but not much!
Luckily I am on the small side, about a 100 pounds soaking wet so I can fit into most places on these critters, lol.
Thanks again for the quick reply, now I can assure my wife that we will be ok here in the Deep East Texas climate.
John Talbott
1986 Pace Arrow M-R
P30 Chassis, 454, 30ft, (The Beast)
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Old 04-23-2015, 04:24 AM   #5
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We always ran the gen to power our roof ac when going down the road. Personally, I wouldn't waste the time or money to replace the dash ac, even if you are certain it is only the compressor. In my experience, you usually need to replace the O rings and the accumulator/drier at a minimum, and the only benefit you will get is some cool air in your face. Just too much interior space to cool for it to do much good beyond that. Our 94 pace arrow had 2 small fans up front, and I would turn one of those on if I needed more air . Good luck with your project .
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Old 04-23-2015, 06:07 AM   #6
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A gas generator may use 3/4 gal per hour. But it will also be powering the refrigerator.
Thus not using LP

99 Discovery 34Q ISB
2014 MKS AWD EcoBoost Toad
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ace, chassis, p30, pace arrow

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