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Author Topic: Tyre pressure measurement - silly me  (Read 7509 times)

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terry paget

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Tyre pressure measurement - silly me
« on: 30 March 2016, 10:42:34 »

For years I have carefully set my tyre pessures using the Bordon gauge on my airline inflator. It got sticky last weekend so i reverted to my old baloon gauge. This suggested all my tyres were seriously underinflated. Worried, I bought a superior PCL Mk.2 tyre inflator from Screwfix, for £65, which comes with a calibration certificate.
Pressure set with old gauge at 32psi were only 24psi with new inflator. I reset at 32psi all round on saloons, 32 front and 36 rear on estates, then checkecd with baloon gauge, which read 1psi higher.
Alarming conclusion is that I have been running on soft tyres for years. I trust the new inflator and I trust the old baloon gauge. This might go some way to explain my tyre wear problems.
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TheBoy

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Re: Tyre pressure measurement - silly me
« Reply #1 on: 30 March 2016, 10:48:33 »

My (supposedly calibrated) PCL one reads massively under if left in the cold, thus it has to stay in the house, much to Mrs TB's annoyance.
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TheBoy

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Re: Tyre pressure measurement - silly me
« Reply #2 on: 30 March 2016, 10:49:59 »

At least in my case, the tyres were over inflated - approaching 50 psi - which is marginally better than under inflated.
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terry paget

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Re: Tyre pressure measurement - silly me
« Reply #3 on: 30 March 2016, 11:15:23 »

My (supposedly calibrated) PCL one reads massively under if left in the cold, thus it has to stay in the house, much to Mrs TB's annoyance.
Very interesting. No mention of temperature on calibration certificate, just says 'in its normal working position'. I know how the Bordon gauge works, I know how the baloon gauge works, I don't know how this PCL gauge works. Does anybody here?
I see I am advised to oil it every month.
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05omegav6

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Re: Tyre pressure measurement - silly me
« Reply #4 on: 30 March 2016, 12:22:44 »

At least in my case, the tyres were over inflated - approaching 50 psi - which is marginally better than under inflated.
Moreso given your driving style ::)
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Migv6 le Frog Fan

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Re: Tyre pressure measurement - silly me
« Reply #5 on: 30 March 2016, 12:24:38 »

On the subject of tyres and silly me - I hurriedly fitted a new tyre to the n/s/f of my Omega about 6 months ago. As I checked the tyre pressures yesterday, I noticed in large letters on the sidewall "INSIDE".  :-[ :-[ ::)
Presumably this will cause a problem of water dispersion when it rains ?
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GastronomicKleptomaniac

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Re: Tyre pressure measurement - silly me
« Reply #6 on: 30 March 2016, 12:46:27 »

Get it changed ASAP. Handling and legal issues.
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johnnydog

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Re: Tyre pressure measurement - silly me
« Reply #7 on: 30 March 2016, 13:06:56 »

Doesn't say much for the tyre fitting place. Must be one of the first lessons learnt during a tyre fitting apprenticeship.
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Migv6 le Frog Fan

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Re: Tyre pressure measurement - silly me
« Reply #8 on: 30 March 2016, 13:28:39 »

I wish I could blame a tyre fitter, but I fitted it myself.  :-[ ;D
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terry paget

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Re: Tyre pressure measurement - silly me
« Reply #9 on: 30 March 2016, 13:47:33 »

I wish I could blame a tyre fitter, but I fitted it myself.  :-[ ;D
You fitted the tyre on the wheel yourself? Congratulations.
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Migv6 le Frog Fan

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Re: Tyre pressure measurement - silly me
« Reply #10 on: 30 March 2016, 16:22:22 »

Yes. Have done for years. I aint paying someone else £15 per tyre to do it for me when I can do it myself in 15 - 20 minutes. ;)
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TheBoy

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Re: Tyre pressure measurement - silly me
« Reply #11 on: 30 March 2016, 17:52:56 »

How do you balance it, as the guy here normally takes 2 attempts?
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zirk

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Re: Tyre pressure measurement - silly me
« Reply #12 on: 30 March 2016, 18:17:28 »

Yes. Have done for years. I aint paying someone else £15 per tyre to do it for me when I can do it myself in 15 - 20 minutes. ;)
♬ Cant get quicker than a Mig6 Fitter ♬
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Migv6 le Frog Fan

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Re: Tyre pressure measurement - silly me
« Reply #13 on: 30 March 2016, 18:25:45 »

How do you balance it, as the guy here normally takes 2 attempts?

If the wheels are a bit shaky at speed, local garage does it gratis at MOT time. :)
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Migv6 le Frog Fan

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Re: Tyre pressure measurement - silly me
« Reply #14 on: 30 March 2016, 18:28:02 »

Yes. Have done for years. I aint paying someone else £15 per tyre to do it for me when I can do it myself in 15 - 20 minutes. ;)
♬ Cant get quicker than a Mig6 Fitter, hes the one to trust - not ♬

You know me so well.  ;) ;D
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