Tyre compressor leaks air when i unscrew it, solution?
Tyre compressor leaks air when i unscrew it, solution?
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457892345

Original Poster:

406 posts

107 months

Sunday 24th June 2018
quotequote all
So i bought this compressor couple months back. (https://www.amazon.co.uk/KZKR-Digital-Portable-Compressor-Inflator/dp/B074J6HZZH)

Every time i fill the tyres up i find i have some air leak out as i unscrew the connector. Is there some kind of technique im missing with it or is there maybe a latch type connector i could attach to it instead to help this issue? Figured someone here must have dealt with issue like this before.

Adam_W

1,098 posts

231 months

Sunday 24th June 2018
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you'll always get a hiss of air as the airline decompresses, the tyre valve should shut quickly when you unscrew it and stop the tyre deflating.

457892345

Original Poster:

406 posts

107 months

Sunday 24th June 2018
quotequote all
Adam_W said:
you'll always get a hiss of air as the airline decompresses, the tyre valve should shut quickly when you unscrew it and stop the tyre deflating.
Ah right, it feels like as i'm unscrewing it i reach a certain point where it opens the valve and lets air come gushing out and its only when i get past that point by continuing to unscrew that it stops leaking air and closes again and by then im down 3-4 psi. Maybe im doing it wrong somehow but no matter how i try it it always seems to do this in varying amounts.

morgrp

4,128 posts

229 months

Sunday 24th June 2018
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457892345 said:
Ah right, it feels like as i'm unscrewing it i reach a certain point where it opens the valve and lets air come gushing out and its only when i get past that point by continuing to unscrew that it stops leaking air and closes again and by then im down 3-4 psi. Maybe im doing it wrong somehow but no matter how i try it it always seems to do this in varying amounts.
Just put 3-4 psi extra in each tyre then?

457892345

Original Poster:

406 posts

107 months

Sunday 24th June 2018
quotequote all
morgrp said:
Just put 3-4 psi extra in each tyre then?
Seems logical except each one could lose very different amounts based on how ''well'' you remove it. if it was a consistent amount it would be fixable the way you say, i suppose i could buy a pressure gauge and overfill it then measure it a few times as that releases some air so could zero my way in to the right psi but its a lot of hassle. Just wondered if there was perhaps a better nozzle type i could buy for it or some technique im missing for the one i have currently.

finlo

4,453 posts

234 months

Sunday 24th June 2018
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457892345 said:
Seems logical except each one could lose very different amounts based on how ''well'' you remove it. if it was a consistent amount it would be fixable the way you say, i suppose i could buy a pressure gauge and overfill it then measure it a few times as that releases some air so could zero my way in to the right psi but its a lot of hassle. Just wondered if there was perhaps a better nozzle type i could buy for it or some technique im missing for the one i have currently.
Buy one with the lever type connector, or speed up the unscrewing!

E-bmw

13,637 posts

183 months

Sunday 24th June 2018
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finlo said:
Buy one with the lever type connector, or speed up the unscrewing!
The obvious answer.

Never liked the screw in ones for exactly this reason.

https://www.ebay.co.uk/itm/Draper-Airline-Car-Tyre...

457892345

Original Poster:

406 posts

107 months

Sunday 24th June 2018
quotequote all
finlo said:
Buy one with the lever type connector, or speed up the unscrewing!
Yeah i could, just as i already bought this one id like to just buy an adapter for it to make it a latch type connector instead (if possible.)

E-bmw said:
The obvious answer.

Never liked the screw in ones for exactly this reason.

https://www.ebay.co.uk/itm/Draper-Airline-Car-Tyre...
If i were to buy this will it work with my compressor and make it so i can use it via a latch like i want?

Sheepshanks

41,342 posts

150 months

Sunday 24th June 2018
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finlo said:
Buy one with the lever type connector, or speed up the unscrewing!
I got a screw on one as the lever ones seemed 'uncertain' to clip on and I'd find the tyre wasn't inflating. There's only the briefest hiss when I unscrew mine - one of the Ring models - but I do check and adjust with a pressure gauge anyway as the gauge on the inflator is hat and miss.

E-bmw

13,637 posts

183 months

Monday 25th June 2018
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457892345 said:
If i were to buy this will it work with my compressor and make it so i can use it via a latch like i want?
Only you can see your compressor & more pertinently your air line fittings so only you can say if this will fit onto yours.

But generically if your compressor compresses air, this works on compressed air so.....Yes.

james_gt3rs

4,816 posts

222 months

Tuesday 26th June 2018
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And no way would you lose 3 psi by unscrewing quickly..

CoolHands

23,682 posts

226 months

Tuesday 26th June 2018
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Always over inflate and bring down to correct pressure with a handheld gauge. Eg a pencil gauge

Mr2Mike

20,143 posts

286 months

Wednesday 27th June 2018
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Sheepshanks said:
I got a screw on one as the lever ones seemed 'uncertain' to clip on and I'd find the tyre wasn't inflating. There's only the briefest hiss when I unscrew mine - one of the Ring models - but I do check and adjust with a pressure gauge anyway as the gauge on the inflator is hat and miss.
My wife has a Ring tyre inflater and I was surprised just how good the screw on connection is, you barely lose any air even if you unscrew it quite slowly.