Community Forums

chindog · 11-21-2016, 05:39 PM

I also went with the Vi-air RV model. I can clamp onto either the car, or the motorhome batteries to get the power for it, and it handles the 100# - 110# I usually put in the tires easily. Plus, it takes up a lot less space and is lighter than a plug in air compressor.

les.warden · 11-21-2016, 09:05 PM

So, with the coach's air system outlet having a connection geared towards plugging in a hose to "fill tires", coupled with the fact that most here are saying it it's a pain and won't really get them up to 120#. Why do they put the connector in? Other than to blow up basketballs, floaties, etc. Maybe to air up a low tire while out away from stations? BUT, it seems like everyone here ditched the idea and has gotten something else. Just trying to understand the MH world.

vsheetz · 11-21-2016, 09:19 PM

Quote:

Originally Posted by les.warden

So, with the coach's air system outlet having a connection geared towards plugging in a hose to "fill tires", coupled with the fact that most here are saying it it's a pain and won't really get them up to 120#. Why do they put the connector in? Other than to blow up basketballs, floaties, etc. Maybe to air up a low tire while out away from stations? BUT, it seems like everyone here ditched the idea and has gotten something else. Just trying to understand the MH world.

Used when needing a tow - by a tow truck - to air up the suspension and enable the brakes.

les.warden · 11-21-2016, 09:23 PM

Thanks vsheetz! Now that makes sense. Also explains the small hole in the bay bottom.

TWINCAMSAM · 11-22-2016, 06:26 AM

I have been thinking about this very issue. I have several compressors here and there. The small "emergency" 12 volt type don't have enough juice to help 90lb plus situations. The Vair is very very expensive. I have a Porter Cable pancake that works great but is heavy and bulky when you start talking MH. I was in. Lowes the other day and stumbled across this little jewel. This is a FINI Airboss. It is also packaged as Craftman and others but priced higher.

69Stang · 11-22-2016, 06:40 AM

Quote:

Originally Posted by TWINCAMSAM

I have been thinking about this very issue. I have several compressors here and there. The small "emergency" 12 volt type don't have enough juice to help 90lb plus situations. The Vair is very very expensive. I have a Porter Cable pancake that works great but is heavy and bulky when you start talking MH. I was in. Lowes the other day and stumbled across this little jewel. This is a FINI Airboss. It is also packaged as Craftman and others but priced higher.

I have that compressor and it has worked very well for me, but I have 19.5 tires and only have ran them up to 100 PSI. Not sure how it would work on the larger tires.

I did use it to power my air stapler when I installed new carpet in the MH and it worked flawlessly. I have two 25 gallon 5.5 HP compressors in my garage and for small jobs I break out the FINI every time.

The only thing I don't like about it is it must be operated laying down, not standing up. Not sure why, but that's what the manual says.

tkcas01 · 11-22-2016, 06:54 AM

Quote:

Originally Posted by vettenuts

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.

Ditto. Wish I had gone with Viair years ago. Gets the tires aired up in no time and takes up very little space.

I also recommend one of these puppies"

https://www.amazon.com/Astro-3018-Di.../dp/B002PUTC0M

highsticker · 11-22-2016, 07:19 AM

I wouldn't buy another air compressor,if you have 160lbs you have to much air pressure already you should only run 130to135 on you unit, you might have a regulator on you hose connection.check you air pressure comming out of you hose.to much air pressure in coach turn down 130

Sent from my iPhone using iRV2 - RV Forum

rvhotrod · 11-22-2016, 07:27 AM

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.

Norman
I'm surprised to hear that you have difficulty inflating your tires off the coach air compressor. Is the engine running when you fill your tires?
I fill mine with engine running and it's very fast.
However, I do use a 3/8" air line with high flow couplers.
I carry a 3/4" heavy duty impact wrench and 33 mm socket for the wheels and it does remove the lug nuts that are torqued to 500 ft lbs without a problem and that takes pressure and volume.

twinboat · 11-22-2016, 08:01 AM

Quote:

Originally Posted by highsticker

I wouldn't buy another air compressor,if you have 160lbs you have to much air pressure already you should only run 130to135 on you unit, you might have a regulator on you hose connection.check you air pressure comming out of you hose.to much air pressure in coach turn down 130

Sent from my iPhone using iRV2 - RV Forum

Most likely mis-reading the gauges or they are inaccurate.

The safety relief valves on air brake systems are set to open at 150 psi.

Hikerdogs · 11-22-2016, 08:55 AM

Last October we bought one like this for our Jeep when off roading in Moab Utah:
Q Industries SuperFlow Twin Cylinder Air Compressor — 12 Volt, 120 PSI, Model MV89G | Inflators| Northern Tool + Equipment

It works extremely well on the Jeep tires, but I haven't tried it on the RV tires yet.

We also carry Campbell Hausfeld 3 gallon, 125 psi, 120 volt compressor in the RV. It works fine, but for the number of times it gets used it takes up a lot of space. Next time out I'm going to see how the SuperFlow one works on the larger tires. If it does a reasonable job I'll leave the larger Campbell Hausfeld at home.

SpaceNorman · 11-22-2016, 12:56 PM

Quote:

Originally Posted by rvhotrod

Norman
I'm surprised to hear that you have difficulty inflating your tires off the coach air compressor. Is the engine running when you fill your tires?
I fill mine with engine running and it's very fast.
However, I do use a 3/8" air line with high flow couplers.
I carry a 3/4" heavy duty impact wrench and 33 mm socket for the wheels and it does remove the lug nuts that are torqued to 500 ft lbs without a problem and that takes pressure and volume.

Interesting - oh how I wish I had the same experience!

My coach engine is running whenever I try to use the "on board" air outlet.

I did "go cheap" on the air hose and couplings however. I'm using a 50 foot length of premium 3/8" rubber hose and associated fixtures from Harbor Freight since it's something that sees occasional use at best. I know that using the word premium and Harbor Freight in the same sentence qualifies as an oxymoron - but the price for something I use so seldom made it too hard to pass up.

I think I'll see about borrowing a quality hose/fixture setup from my brother in law (he's a real motor head who'd rather eat nails than set foot in a Harbor Freight store .... ) to see if that makes any difference. Upgrading a hose/fixture setup would certainly beat having to buy a compressor and a new hose/fixture setup!