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8 posts

Wannabe Geek
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#60480 26-Apr-2010 19:50
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i have a foot pump to pump air into my car tire but the tire pressure is not increasing. i have a pump similar to this but i have 2 of those cylinders:

http://www.trademe.co.nz/Sports/Camping-outdoors/Stretchers-mattresses/Air-beds-pumps/auction-282401646.htm

the pump doesn't seem to screw onto the tire. you have to push the end of the pump hose thing onto the tire then lock it into place by pulling down the black handle, but as soon as I put the pump connection onto the tire the air just starts coming out alot and the air just keeps on coming out.
even when i pull the black handle down the air keeps coming out. if i put the pump connection onto the tire loosely the air doesn't come out of the tire but when i pump the air doesn't even go into the tire.



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  #323204 26-Apr-2010 19:53
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Personally, I would not bother with a foot pump like that. Just take your tyre to your local servo, atleast air is free here.

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Uber Geek
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  #323206 26-Apr-2010 19:54
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Go to a petrol station and use the free air with digital Gauge

Not sure what you want from the GZ community on your post sorry

John

 
 
 
 


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  #323209 26-Apr-2010 19:57
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Yes it should be just simple as putting the black connector onto the tire inlet and putting the black handle down to lock it and no air should come out. And then just pump away. Yes you will loose a tiny bit of presure when you are putting it on but that shouldn't matter at all.

unless your pump is broken...



Go Hawks!
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  #323242 26-Apr-2010 20:44
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Sorry, but I suspect your foot pressure is going to be way less than what your tire needs. It *might* work without the weight of the car on it.

(I say this as road bikes take up to 120PSI and I can get that pressure from a hand pump ... of course, they don't have two tonne pressing back down on it, either)

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Uber Geek
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  #323244 26-Apr-2010 20:54
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average car tire is between approx 30 to 32psi and if a good quality foot pump should be simple

John

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  #323246 26-Apr-2010 20:57
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Those who say your foot is not strong enough, I hope you realise take said tyre off the car before commencing inflation does make it easier.


Regardless, take it down the road and save yourself some hassle.

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  #323248 26-Apr-2010 20:59
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johnr: average car tire is between approx 30 to 32psi and if a good quality foot pump should be simple

John


The "problem" you will have is the volume of air that is needed.  It will take a long time to pump a car tyre up with a standard hand or foot pump.

Honestly it will probably take you less time to take the wheel off, take it to a gas station and pump it up that way (unless you live miles away from one and don't have a second car)


 
 
 
 


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  #323253 26-Apr-2010 21:08
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jaymz:
johnr: average car tire is between approx 30 to 32psi and if a good quality foot pump should be simple

John


The "problem" you will have is the volume of air that is needed.? It will take a long time to pump a car tyre up with a standard hand or foot pump.

Honestly it will probably take you less time to take the wheel off, take it to a gas station and pump it up that way (unless you live miles away from one and don't have a second car)



I have used a foot pump on a car tire before that was very LOW on pressure and it worked no issue

John

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  #323268 26-Apr-2010 22:00
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Get one that plugs into your lighter and has a motor on it.

But there should be no air leaking out of the valve when you put the hose onto it. I think you are not pushing it on all the way before pushing the lever down or else its a faulty pump end that is missing it seal or something.




Richard rich.ms

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  #323274 26-Apr-2010 22:08
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You're not pushing the inflator bit onto the valve firmly enough before you try to lock it on.

The pump is fine and don't take the wheel off to pump it up.

Some of the advice above is, frankly, bizarre!

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Ultimate Geek


  #323337 27-Apr-2010 01:58
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get a compressor

http://en.wikipedia.org/wiki/Gas_compressor

places like Repco sell small ones fairly cheap-ish, they just plug in to the lighter socket in your car

no muscle energy required by you :)




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  #323342 27-Apr-2010 02:19
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If they cant work a valve then it will not help.

Have seen some tacky wheel covers that make it real hard to get a valve on. If you must have stealies on your car, take the cover off and try again with the pump.




Richard rich.ms

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  #323371 27-Apr-2010 07:50
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With most of my bike pumps the lever has to be lifted up before pumping . . try the lever the other way ?. . . 30psi is less than a mountain bike type pressure and less than 1/2 the pressure of a road bike tyre so pressure is not an issue - sounds like the pump connection to me.  Personally I use an air compressor for car tyres at home due to the larger volume of air. 

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  #323907 27-Apr-2010 21:38
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less than half? hahaha!

would be outright dangerous to ride around on a bit over 60psi ;-)

less than a THIRD of the pressure of a road bike tire is more like it, or even a 1/4




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  #323916 27-Apr-2010 21:49
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the only reason you should need to carry a pump for your tyres is if you're driving a 4WD and lowering the pressure while off road..... if youre tyres are OK, they shouldnt lose that much air and you shoud have plenty of time to get to a garage and top them up for free.

if you are having problems keeping the pressure up, you should get your tyres checked or replaced - they might end up causing an accident

i have a cheap electric rechargeable air compressor the like of which you get at repco/kmart etc. they work, but they take blinking ages.




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