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How to Deflate your Tyres


Frederic

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1 hour ago, Javier M said:

 

 

I can relate to this I was using the JT Brooks deflators but I could not get them to work right no matter how many times I practiced I always got over-deflated in one tired.

This last weekend I tried the IndeFlate Tire Inflator and Deflator and I loved it, I finished deflating first than the other cars around me and it took me around 5 minutes to inflate all 4 tires. 

The only con is that it seems a little overwhelming and bulky at first to see all the hoses but once you get the hang of it you finish very fast.

This allowed me to install my flag while I was deflating so two birds with one stone. 

 

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I made a very similar system myself a while back, It worked fine but i ran across some issues when clipping on the hose to the tyre. Due to some wear and tear on the valve the air came out faster on one tyre in comparison with the other. As a result of that i would have the front tyre at 18psi while the back tyre was at 14psi. From what i see the INdeflate clip-on system looks a bit better so you might not have that problem.

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  • 1 month later...
On 1/7/2019 at 3:23 PM, Jocreative said:

+1 to the Rapid Air Deflator. It follows the same valve-pull technique, but with a more cleaner and safer approach.

Also it's handy that the gauge is attached to it so you do not have to deflate, check with gauge, deflate again...etc.

Bought mine from Ace hardware. Quick and efficient. Lovin it. 

1062179319_deflatesuperior.jpg.8284d355c2b69e10c8bf1c49e98a0953.jpg

This deflator is really nice and easy to use. With this you ensure that you don't need search your valve core from the sand time to time.... 

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The easy express deflator gizmo wrecked two valves , tried the tyre repairers tool gizmo and it wrecked the valves too 

 

it was then I realised that it wasn’t the tools but me , over tightening the things .🤣 

 

Learn from my mistakes , go easy on your valves , they’re more delicate than you realise 🙄😅

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  • 3 weeks later...
On 1/6/2019 at 9:47 PM, Frederic said:

When starting as an off-roading enthusiast in UAE, you will come to hear about deflating your tyres, and setting your tyres to the right tyre pressure is one of the first things you will need to learn to master. The main reason for deflating your tyres is to obtain a longer footprint in the sand, and that enables you to drive on the sand, instead of digging into it. 

Tyre pressure is defined in PSI (pounds per square inch) or Bar. You will find both readings on your pressure gauge. In UAE most people use PSI, and the gas station compressors also use the PSI identification.

Below you can see the corresponding PSI and Bar readings.

image.png.2d5984a7c75417f116e1667e4929aebf.png

As a beginner level offroader, you should reduce your tyre pressure to about 15 PSI. This is low enough to enable you to drive in the dunes without the risk of the tyre coming off the rim. This 15PSI is also perfect for on-road-tyres.

After a few drives, and depending on the terrain, or if you have offroad tyres, you can slowly deflate further down to 10-12 PSI. Take note that the risk for having a pop-out will increase, so don't be afraid to post your questions on the Carnity website or consult one of the marshals if you are not sure about your tyre pressure.

There are different ways of deflating your tyres, and each have their advantages and disadvantages. The more you will practice, the sooner you will find out what works best for you.

How does a stem valve looks like ?

The stem valve is consisting out of 3 pieces. The body, that is made of flexible rubber, the core, and the valve cap. Take note of the following:

- The rubber valve body wears out over time. Once you start to see cracks, it is advisable to get it replaced at the nearest tyre center.

- The valve core is a tiny component with a small rubber gasket. If you remove them on a weekly basis, the gasket slowly wears out or the core can even break. Carry 5-10 spares in your vehicle. The tyre center often give them for free.

- The valve cap keeps dirt and sand from entering into the valve, so it's advisable to always screw the cap back on. 

 

Valve Stems

 

The process of deflating / inflating goes by either pushing in the valve core, which allows air to be released, or by removing the valve core, which is a much faster option. 

How to check the tyre pressure ?

Verifying your tyre pressure is really easy. Get yourself a pressure gauge, and push it against the tyre valve, or screw it on (depending on the model). You will see the reading in PSI or Bar.

The digital ones are fine, but one day the battery will be empty, so a good old analogue is preferred to have as well. 

PS if you find that your gauge has difficulties reading the tyre pressure, and you really need to push it hard onto the valve, this is an indication that the valve core is worn out. Replace it with a new one and you will see that this will solve your problem.

Digital Car Tyre Air Pressure Gauge Meter Manometer Tester Tool Car Tire Tool for Auto Car Motorcycleimage.png.b9eaff03f76e409d26f11bd367fd925f.png

 

Which tools to deflate and how much time will it take ?

1) Set of keys, a rock, or anything you might find in your car  (+/- 15 mins)

1610869852_deflationkeys.jpg.b3ecbebd16028cc0317a32186a9591e8.jpg

PROS: CHEAP and plenty of stuff available

CONS: Takes a very long time which you could use for a smoke or a chat and risk on damaging the valve stems. 

 

2) Valve Chucks (4-5 minutes)

Buy 4 of them and stick them on all tyres simultaneously and then wait about a few minutes (as per your type and size of tyre) to arrive at around 17-18 psi. Then take one tyre at a time and use your pressure gauge to further decrease and finetune the pressure of each individual tyre. 

PROS: Fast and Cheap

CONS: none that i know off.

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3) Stem removal tool (2-3 minutes)

Available in most hardware shops. Enables you to remove the valve core stem so the tyre pressure comes down very fast. 

PROS: Very Fast and Cheap

CONS: Be careful not to lose the stem as it can blow out. So taking some spare is advisable. Be careful not to deflate too much as it really goes fast. Use a stopwatch and learn to find the perfect timing when to screw it back in, and then double check with a pressure gauge.

Amazon.com: GUAngqi Tyre Valve Removal Tool, 2 in 1 Tire Valve ...

4) Rapid Tyre deflator and pressure gauge ( 4-5 mins)

This tool enables you to loosen the stem, quickly deflate and immediately take a pressure reading. 

PROS: Professional tool for reasonable price, pressure gauge and deflator in one tool.

CONS: Might take a bit of practice to get the hang of it. The fake chinese ones are failry unreliable.

1062179319_deflatesuperior.jpg.8284d355c2b69e10c8bf1c49e98a0953.jpg

 

As with all tools and gear, we advise you to practice a bit at home to become familiar with them. It is also recommended to carry two pressure gauges, so you can compare them with each-other and double check your readings. Often we have seen pressure gauges giving accurate readings at high pressures (35) but very inaccurate results at 10-15 PSI which requires a good quality gauge.

Do give us your feedback on your favorite tools !

 

@FredericDo you think that we can trust in the dashboard gauge in the car ? Last time I used your gauge at 15 psi and all my 4 tires were showing exactly 103 kpa in the dashboard, So it could be my second "checking" gauge ? 

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8 minutes ago, DANIEL NOGUEIRA said:

@FredericDo you think that we can trust in the dashboard gauge in the car ? Last time I used your gauge at 15 psi and all my 4 tires were showing exactly 103 kpa in the dashboard, So it could be my second "checking" gauge ? 

Yes, that looks good and could be used a your second gauge :) 

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The vehicle display shows tire pressure as those vehicles are fitted with the TPMS (Tire Pressure Monitoring System). These are pretty accurate, however take time to send readings to your dash. So do not rely on them when deflating as by the time it shows 12 PSI you'll already on 8 PSI. But just to keep a check as you're driving is fine, or to double check once you're done deflating.

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  • 4 months later...

Installed these Fast Deflation tire vales - absolutely love it. In Formula Tires got them at 550AED with the installation

Deflating the tire in 15 sec (I normally do 2 meausures to catch the correct pressure, but in any case it takes another 5 sec per tire)

Screen Shot 2021-02-10 at 00.09.14.png

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Something tells me we are going to be the best of friends @Ilya Golubinsky. I'm complete opposite of you. My tire deflation kit cost me AED 25/- and takes me 60 seconds to deflate all four. I too am very happy with my setup. We are from different worlds and have loads to learn from each other.

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After I tried some of these finally I found the fastest and cheapest one is the stem removal tool . True it took practice but I found it the handiest and fastest and in case I keep a bunch of stem core available. One min and all the rubber flat up to 10 psi with less knee pain and my picnic Barrique stool kept at home backyard 😜

Edited by Mohamed Seidam
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7 hours ago, Ilya Golubinsky said:

Installed these Fast Deflation tire vales - absolutely love it. In Formula Tires got them at 550AED with the installation

Deflating the tire in 15 sec (I normally do 2 meausures to catch the correct pressure, but in any case it takes another 5 sec per tire)

Screen Shot 2021-02-10 at 00.09.14.png

I've been toying with getting these bad boys @Ilya Golubinsky

I've tried it all, from safe deflator tool, to the stem removal. I now use JT Brooks, Pro. I like that I can leave them to deflate as I do other things. 

Deflating and inflating is, for me, the worst part of the drive so I like anything that makes it more convenient. 

Edited by Foxtrot Oscar
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