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Old 04-20-2010, 01:48 PM   #1
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Deflators / Inflators

Hi Everyone - I finally got my beach permit and was about to try it out when a gentleman told me to carry and on board air compressor and a deflator otherwise I'll get stuck. So i backed down.....

After searching on this forum I need your help in figuring out:

1) What equipment do I need? Which air compressor and deflator.
2) What is the recommend PSI for on road and off road. I have a sahara 4 door JK (32 inch tires)
3) How long does it take to air down and air up?
4) Do I need to get a separate guage to check the pressure? IF so, which one?.

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Old 04-20-2010, 03:23 PM   #2
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Quote:
Originally Posted by silenser21 View Post
Hi Everyone - I finally got my beach permit and was about to try it out when a gentleman told me to carry and on board air compressor and a deflator otherwise I'll get stuck. So i backed down.....

After searching on this forum I need your help in figuring out:

1) What equipment do I need? Which air compressor and deflator.
2) What is the recommend PSI for on road and off road. I have a sahara 4 door JK (32 inch tires)
3) How long does it take to air down and air up?
4) Do I need to get a separate guage to check the pressure? IF so, which one?.
I would just get out there. You shouldn't have to much of a problem unless you get into really soft deep sand. But that's just me.

1. All you really need is an air reader of some kind. I like the digital ones they are easy to use on the fly. Next is a compressed air tank thirsting come in different sizes, so you can get a fairly small one to air up your tires. As for a tool ti air them down. I use a ball point pen, but they do make valve stems to make it easier.

2. Most guys will run somewhere between 10 - 15lbs off road.28-35 on road.

3. It can take anywhere between 5 and 15 min to air up. Air down is the easy part. The lower you go the more air and time it will take to air up.

4. Yes buy a tire gage. They can be picked up for anywhere from .99 to $30

If you have an auto watch how much you use 4x4 it will overheat. Good lick hope this helps. GET OUT AND ENJOY YOUR JEEP. Don't let some guy deterring you.


Man that took a while to type out on a phone.

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Old 04-20-2010, 04:36 PM   #3
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I use the cheapo Smittybilt deflators- no problems so far.
1. As for airing back up, you do NOT need on-board air. Just drive slow to the nearest gas station and fill them back up. I've aired down many times, and I don't have onboard air. If anything, one of the ~$50 12V compressors is fine. Takes a while, but all you have to do is hook it up to your battery and wait

2. For the beach, 15-18 PSI will be fine. On-road, the OEM tires run best around 32-35 PSI

3. Depends on your equipment and tires.

I highly recommend a separate, accurate tire gauge. Find one that's NOT overly cheap- the ones at checkout at Autozone need not apply if you REALLY want an accurate reading. Otherwise, close enough is FINE. This is not an exact science!

If you drive smart, you won't get stuck. Just don't get too close to the ocean
Enjoy- Mark W.
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Old 04-20-2010, 10:32 PM   #4
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kind of strange....i was shopping with the girlfriend the other day and wandered into Brookstone where i found a mini air compressor that plugs into a cigarette lighter...i think it was around $50 bucks....not sure how good it could possibly be as it is from Brookstone, but it looked exactly like a real air compressor just smaller.....just thought id throw that out there.......
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Old 04-20-2010, 10:35 PM   #5
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Old 04-21-2010, 06:45 AM   #6
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Great information. I think the best thing would be try it out and see what exactly do I need.

Thanks a lot guys! Really appreciate it.

Let me know if you have any other suggesstions or 'things to buy'.

PS: Why is it that we have a need 'to buy' rather than use what we have. Strange!!
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Old 04-21-2010, 08:23 AM   #7
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I use "STAUN" deflators, that I have set at 18 psi, although I only use them-if necessary

I have an OBA sys and I carry a Q89 twin cyl compressor, when I take the trailer and my "STAUNS" for the trailer are set at 15psi, I've used them on very washboard roads (Mojave)

Ya lays yer mioney and ya takes yer chances

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Old 04-21-2010, 08:35 AM   #8
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I used to air down to 5 to 8 pounds when driving the dunes in Michigan, but was recently told that I went too low. I never had a problem though and even the few miles on road to the local air was not an issue, I just drove slow.
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Old 04-22-2010, 07:32 AM   #9
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The Brookstone "compressor" is for bicycle tires on its best day. MAYBE some low-profile car tires. For 32" tires, it'd take a week and a half to air up from 15 PSI.

And yes, pecos, 5-8 is too low for non-beadlocked radial tires- no benefit, and a huge chance of popping the bead off- Mark W.
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Old 04-22-2010, 02:56 PM   #10
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this is the one i have. it fits in the storage area under the rear cargo floor and fills tires just as fast as the full size compressor that i hate carrying around. it just clips on the battery and you are ready to go.
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Old 04-22-2010, 08:48 PM   #11
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get a set of staun deflators , you set them once and you're done....they;re pricey but good, mine are set for 10 psi I am running 35 in tires on 15" rims ....good for snow , and sand at that pressure, rocks I prefer around 15 psi...I carry a power inverter that powers my air compressor with tank....when I fill back up I just fill them until the tire rides flat across the tread or 26 psi for my 35's..but I use a gauge when I get home
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Old 07-29-2010, 08:38 AM   #12
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If you google: Jeep tire deflator inflator

you will find a post on another site that gives instructions on building a 2 tire and 4 tire deflator/inflator rig that is VERY cool. It allows you to fill or deflate your tires all at the same time with equalized pressure.
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Old 07-29-2010, 12:24 PM   #13
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Old 07-29-2010, 12:36 PM   #14
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Where does the permit cover? Democrat Point and Gilgo?

I got a cigarette lighter air compressor, takes about 10 mins to inflate all tires but the compressor was free
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Old 07-29-2010, 02:12 PM   #15
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This one

http://www.walmart.com/ip/Masterflow...i_sku=12321236

It won't let me drop a link for amazon...
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Old 07-29-2010, 04:58 PM   #16
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You don't really need deflators, just a good gauge and a bit of time to let the air out.. Deflators are just faster. I have Smittybuilt deflators. for airing up I carry a Viair portable unit. VIAIR Corporation - 300P Part No. 30033 they are a bit expensive but really nice.

I actually run 40 psi in my tires to get better gas mileage, but when I leave the beach I would only run them up to about 32psi and fill the rest after I get back home with my compressor there.
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Old 07-30-2010, 07:08 AM   #17
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For the last 2 yrs I have been going to Sore Thumb. Was using the wifes Trailblazer with no problems, but i can wait to use the new jeep this weekend. The sand has been pretty dry there this summer so airing down has been a must. I am set around 20lbs which has been working fine. Deflators make it that much easier and a decent compressor makes it that much faster.
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Old 07-30-2010, 08:27 AM   #18
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--Deflators are a CONVENIENT addition, if you do any off-roading/sand travel/snow driving (deep) and any shale/rock climbing

They are one of many pleasant additions to your jeep package, I use "STAUNS" and there are many other mfg, that make different types

You can just hold the valve stem down and check pressure-OFTEN, or get the STAUN TYPE and -----SETITANDFORGETIT--get back in the jeep and drink coffee. listen to the radio, TALK-then go back out, unscrew the deflators--getin leave !!

Checkemout

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Old 07-30-2010, 03:23 PM   #19
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Quote:
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For the last 2 yrs I have been going to Sore Thumb. Was using the wifes Trailblazer with no problems, but i can wait to use the new jeep this weekend. The sand has been pretty dry there this summer so airing down has been a must. I am set around 20lbs which has been working fine. Deflators make it that much easier and a decent compressor makes it that much faster.
If you hit some really soft sand, 20psi will not cut it.. 12psi is about right. I use to air down to 20 and then hit some really soft sand and got stuck.. Aired down to 12, spent an hour digging out, then drove right out with a problem.

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