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11-20-2016, 12:26 PM
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#1
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Senior Member
Monaco Owners Club
Join Date: Jan 2004
Posts: 1,188
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Portable Air Compressors
It's time I quit kidding myself that using my coach's compressed air outlet is a viable solution for keeping my coach tires properly inflated. I can put the air hose on a tire for minutes and see little or no change to the pressure reported on the tire gauge. I don't think it's an issue of insufficient pressure since the system appears to be pressurized to 160 PSI according to the dash gauges. I'm guessing it's an air volume issue. However, regardless of why - it simply ain't getting it when it's time to top off the P295/80R22.5 tires on my coach.
I'm thinking it's time to investigate picking up a compressor that's designed to handle this. Anybody got any suggestions / recommendations for a compressor that will do the job. Again - I'm looking for something that will handle BIG coach tires (P295/80R22.5) inflated to 100+ PSI.
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SpaceNorman
2012 HR Endeavor 43' DFT, 2022 Jeep Wrangler
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11-20-2016, 01:16 PM
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#2
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Community Administrator
Join Date: Aug 2009
Posts: 53,543
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Portable Air Compressors
A lot of us use this one.
It's also sold under the Porter Cable name.
https://www.amazon.com/PORTER-CABLE-.../dp/B006CVXGR0
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Cliff,Tallulah and Buddy ( 1999-2012 )
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11-20-2016, 01:26 PM
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#3
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Senior Member
Join Date: Nov 2013
Posts: 5,774
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I went with a 12 volt Viair. They have a specific one for RVs but I just went with a lesser version. It works quite well.
__________________
2015 Tiffin Phaeton 40QBH
2018 Chevrolet Colorado Toad
Roadmaster Tow Setup
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11-20-2016, 04:48 PM
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#4
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Senior Member
Join Date: May 2010
Location: N.E. Florida
Posts: 1,399
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Quote:
Originally Posted by Clifftall
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X2.....takes all the stress out of air pressure issues. Lightweight and takes up minimal storage space.
Key is to get a good quality dual head truck chuck to use with this compressor.
Using a Milton chuck and a Milton dual headed air pressure gauge works well for me.
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DaveS
1998 American Eagle 40EVS
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11-20-2016, 05:47 PM
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#5
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Senior Member
Fleetwood Owners Club Ford Super Duty Owner
Join Date: Jun 2012
Location: SoCal
Posts: 15,749
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Quote:
Originally Posted by Clifftall
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I have the Porter Cable version of this. Put a good truck tire air chuck on it with quick connects. Works great. Easy peasy.
Vince
__________________
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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11-20-2016, 06:00 PM
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#6
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Senior Member
Country Coach Owners Club
Join Date: Jan 2014
Location: Medford, OR
Posts: 744
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I started with an electric pancake compressor that could deliver >125 lbs but replaced it with a ViAir 12v portable unit. Love the ViAir. Expensive, but worth it, IMO.
__________________
2007 42' Country Coach Intrigue #12149 CAT C-13, 2014 SRX, Roadmaster Sterling, SMI AirForceOne
FMCA, Good Sam, CCFI, CCI, NWCC
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11-20-2016, 07:34 PM
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#7
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Senior Member
Forest River Owners Club Ford Super Duty Owner
Join Date: Dec 2014
Posts: 1,024
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Quote:
Originally Posted by vsheetz
I have the Porter Cable version of this. Put a good truck tire air chuck on it with quick connects. Works great. Easy peasy.
Vince
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x2 Finally got it after being frustrated with two of the little V -air things. This fits nicely in the rear storage compartment and makes life much easier. ?Can air up anywhere.
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11-20-2016, 07:41 PM
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#8
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Senior Member
Ford Super Duty Owner
Join Date: Oct 2014
Posts: 706
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We have the Porter Cable and love it. BUT one of things that make it easy is a straight lock on air chuck like this one: CTA Tools 1930 Straight Lock-On Air Chuck. Easy Peasy
__________________
US Army Retired - loving it in our Challenger 37TB.
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11-20-2016, 07:42 PM
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#9
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Senior Member
Join Date: Oct 2014
Location: Alberta
Posts: 598
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I went with the VIAIR 450p works just like a compressor that has a tank but doesn't. No need to switch it off between tires as it has a pressure switch built in. Solid unit, built like a tank but not cheap. You usually get what you pay for.
2009 Safari Cheetah 40'
350 HP Cat
2014 Ford Focus
Air Force One
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11-20-2016, 09:05 PM
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#10
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Senior Member
Join Date: Sep 2015
Location: NW Oregon
Posts: 144
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If you have a generator, is there any advantage to a 12v over a portable 110? I understand that 110 will have more oomph (technical term) than the 12v.
__________________
It is by the beans of Java the thoughts acquire speed,
The hands acquire shaking, The shaking becomes a warning.
It is by caffeine alone I set my mind in motion
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11-20-2016, 09:18 PM
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#11
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Member
Join Date: Apr 2011
Posts: 68
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Quote:
Originally Posted by WhatsHisName
If you have a generator, is there any advantage to a 12v over a portable 110? I understand that 110 will have more oomph (technical term) than the 12v.
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I have the Viair RV unit. It is more easily stowed, lighter, and quieter than my AC-powered compressor. It does have less oomph, but I can top off my tires to 100 PSI easily. I do not like the coiled hoses, but the do reach from front of 34' MH to rear tires if stretched out. Straight hoses would be better.
2009 Fleetwood Southwind
__________________
Celerator (Joe)
'09 Fleetwood Southwind 32VS
Victoria, BC Canada
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11-20-2016, 09:29 PM
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#12
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Senior Member
Tiffin Owners Club
Join Date: Mar 2015
Location: Southern NM
Posts: 2,514
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Quote:
Originally Posted by WhatsHisName
If you have a generator, is there any advantage to a 12v over a portable 110? I understand that 110 will have more oomph (technical term) than the 12v.
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I went with the 110 because its easier to get to a 110v outlet than my batteries plus I can use the compressor around the house as well for small jobs
__________________
2005 Tiffin Allegro Bay 37DB
W22 Workhorse Chassis 8.1 Flat Towing a 82 Jeep CJ7
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11-20-2016, 11:36 PM
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#13
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Senior Member
Join Date: Jul 2016
Location: Bonney Lake, WA
Posts: 140
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I had the same problem and replaced the air chuck with a good quality one from NAPA Auto Parts. We had a bad chuck and the problem is solved.
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11-21-2016, 06:03 AM
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#14
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Senior Member
Join Date: Jul 2014
Posts: 35,419
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Quote:
Originally Posted by SpaceNorman
It's time I quit kidding myself that using my coach's compressed air outlet is a viable solution for keeping my coach tires properly inflated. I can put the air hose on a tire for minutes and see little or no change to the pressure reported on the tire gauge. I don't think it's an issue of insufficient pressure since the system appears to be pressurized to 160 PSI according to the dash gauges. I'm guessing it's an air volume issue. However, regardless of why - it simply ain't getting it when it's time to top off the P295/80R22.5 tires on my coach.
I'm thinking it's time to investigate picking up a compressor that's designed to handle this. Anybody got any suggestions / recommendations for a compressor that will do the job. Again - I'm looking for something that will handle BIG coach tires (P295/80R22.5) inflated to 100+ PSI.
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Your air system runs between 120 and 130 psi, not 160.
There is also a flow problem due to the lenghts of small lines and regulators running from the tank to the air fitting and then thru the hose you use. All of this adds up.
The static pressure will be there but while flowing, no to much.
It's the same reason the tire guy has a big hose on the big tire gun.
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