In article
,
Tim+ wrote:
I don't think tyres are that fussy. If in doubt about a guage, just
pump until it looks round.


Troll troll troll

Only just realised?

Having said that, there is an element of truth in what he says.

A sidewall that is obviously bulging too much leads to overheating and
blowouts. Pumping up to reduce the bulge brings a tyre back into the
correct shape to reduce this.

Very difficult to tell with big low profile tyres.

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On Wed, 20 Dec 2017 00:19:17 -0000, Birdbrain Macaw (now "James Wilkinson"),
the pathological attention whore of all the uk ngs, blathered again:


I never had that problem with mine.

Birdbrain, you ARE the problem!

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On Wed, 20 Dec 2017 00:12:11 +0000 (GMT)
"Dave Plowman (News)" wrote:

In article
,
Tim+ wrote:

A sidewall that is obviously bulging too much leads to overheating
and blowouts. Pumping up to reduce the bulge brings a tyre back
into the correct shape to reduce this.

Very difficult to tell with big low profile tyres.

I noticed that recently. Hard to see much difference between 20PSI and
45PSI. I usually inflate until a tyre looks about right, then check it
with a separate gauge, because pump gauges tend to be inaccurate.

On Sat, 23 Dec 2017 01:07:38 -0000, Birdbrain Macaw (now "James Wilkinson"),
the pathological attention whore of all the uk ngs, blathered again:

FLUSH attention whore's usual idiotic drivel

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On Saturday, 23 December 2017 01:03:06 UTC, Rob Morley wrote:
On Wed, 20 Dec 2017 00:12:11 +0000 (GMT)
"Dave Plowman (News)" wrote:

In article
,
Tim+ wrote:

A sidewall that is obviously bulging too much leads to overheating
and blowouts. Pumping up to reduce the bulge brings a tyre back
into the correct shape to reduce this.

Very difficult to tell with big low profile tyres.

I noticed that recently. Hard to see much difference between 20PSI and
45PSI. I usually inflate until a tyre looks about right, then check it
with a separate gauge, because pump gauges tend to be inaccurate.

The correct way to do it needs a contact thermometer.
When the tyre pressure is right, the temperature of the tread is the same across the width of the tyre (measured immediately after running.)
If it's hotter in the middle, it's over inflated.
If it's hotter at the edges, it'sunder inflated.

On Wed, 27 Dec 2017 14:31:03 -0000, Birdbrain Macaw (now "James Wilkinson"),
the pathological attention whore of all the uk ngs, blathered again:


The correct way to do it needs a contact thermometer.
When the tyre pressure is right, the temperature of the tread is the same across the width of the tyre (measured immediately after running.)
If it's hotter in the middle, it's over inflated.
If it's hotter at the edges, it'sunder inflated.

I really don't think

Right, you only blather inanely and endlessly.

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On Tue, 26 Dec 2017 23:09:02 -0800 (PST)
harry wrote:

The correct way to do it needs a contact thermometer.
When the tyre pressure is right, the temperature of the tread is the
same across the width of the tyre (measured immediately after
running.) If it's hotter in the middle, it's over inflated. If it's
hotter at the edges, it'sunder inflated.

I know racers do it that way, but it's not very helpful for our typical
trip to the supermarket and back.

In article 20171228154541.2a41fbe7@Mars,
Rob Morley wrote:
On Tue, 26 Dec 2017 23:09:02 -0800 (PST)
harry wrote:

The correct way to do it needs a contact thermometer.
When the tyre pressure is right, the temperature of the tread is the
same across the width of the tyre (measured immediately after
running.) If it's hotter in the middle, it's over inflated. If it's
hotter at the edges, it'sunder inflated.

I know racers do it that way, but it's not very helpful for our typical
trip to the supermarket and back.

The correct pressure becomes far more important at high speed running - to
prevent the tyre overheating, even more so with a full load. The usual
trip to the supermarket unlikely to involve high speeds.

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On Fri, 29 Dec 2017 18:12:41 -0000, Birdbrain Macaw (now "James Wilkinson"),
the pathological attention whore of all the uk ngs, blathered again:


The only time I've had a blow-out is when the tyre is very old (under the
legal tread limit). The wrong pressure just damages fuel consumption and
tyre life.

Birdbrain, your "brain" blew out and was severely damaged already long time
ago!

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Pinnerite wrote:

my new Kia Niro can monitor tyre pressures the manual says). Sure enough
recently an overhead image of a car appeared on my control panel showing
flashing psi values against each wheel indicating 31/32 psi. They should
be 36 psi all round.

As soon as the snow cleared, I opened up my cigar-lighter-socket powered
electric tyre pimp and went sound all four. it has an analogue gauge but
the readings were all 36-38psi. I added a couple of bursts before
unplugging.

The graphic still read 31/32 against each wheel.

I posted my bewilderment to a Kia Form and someone came back and said that
was normal. The misinterpret when it is cold!

This is 2017, the age of powerful smart-phones. How come Kia cannot
compensate for low temperatures?

Makes no sense.


I couldn't follow this up before because I was knocked low by the flu
epidemic for about a month.

However, my KIA dealer checked the system, said it was fine and bumped the
pressures on all four tyres to 38psi. (The recommended psi is 36). The
gauges report accurately but the ride is a bit bumpier.

Thanks for the feedback. Very interesting apart from the those with
Tourette's issues.


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