[Healeys] tire pressure

[i erbs]

I wish I drove my car enough to matter. I am more concerned about the age
of the tires and sidewall failure than uneven tire wear :)
That said , my car is a bit bumpy since I put the new tires on it. I think
the shop over inflated them. I need to check on them.
Cheers

Ira Erbs
Portland,OR
      _______                                  _______
     (______ \____1959 BN4____/ _______)
         (_________________________)
          BT7 engine and disk brakes
*Aerodynamics are for people who can’t build engines.* – *Enzo Ferrari*
Please excuse random auto corrects and misspelled words

On Tue, Oct 25, 2016 at 5:57 AM, Michael Oritt <michael.oritt at gmail.com>
wrote:

> While measuring tire wear may give historically accurate information we
> really want to get it right before the tire wears unevenly.
>
> Consider doing what is recommended at:
>
> http://www.fluke.com/fluke/uses/comunidad/fluke-news-
> plus/articlecategories/automotive/racetracktemp
>
> Admittedly much of what the site touts is not relevant to street driving
> but you can get the information you need to adjust tire pressures in real
> time.  And while a contact probe may be most accurate I use an infrared
> pyrometer to tell me whether tire temps are increasing too much or not
> enough, etc. etc.
>
> Best--Michael Oritt
>
> On Tue, Oct 25, 2016 at 5:57 AM, Oudesluys <coudesluijs at chello.nl> wrote:
>
>> This works fairly well on cross-ply tires, but on normal radial tires it
>> only works when pressures are really way out.
>> It will however work for discovering front wheel misalignment for both
>> types of tire.
>> Kees Oudesluijs
>>
>> Op 25-10-2016 om 0:55 schreef Len and/or Marge Hartnett:
>>
>>>
>>> Likewise, you can use a tire depth gauge.  This will take more time but
>>> over time it can indicate problems other than tire pressure.  Measure the
>>> depth at the inner edge of the tire, the center of the tire, and the outer
>>> edge of the tire.  If checked every six or so months, even wear over the
>>> width of the tread would indicate a pressure that is providing full tread
>>> contact (9-9-9).  If wear is greater at the edges, tire pressure is too low
>>> (7-9-7). If wear is greater in the center, pressure it too high (9-7-9).
>>> If one edge is wearing more than the other, wheel alignment could be a
>>> problem (7-9-9 or 9-9-7).
>>>
>>> If you need an excuse to  go out and drive the car hard periodically,
>>> the chalk method will be your first and best choice.  The depth gauge
>>> method will make you check your tire pressure and wear close-up more often
>>> so I recommend you do that, also.
>>>
>>> While you are down there, check the date on the tires and the condition
>>> of the sidewalls.  If you are getting depth readings at or below the threes
>>> or they are over 7 - 10 years old, you are overdue for new ones.
>>>
>>> (The Other) Len
>>> Fairfield, CA, USA
>>> 1967 AH 3000 MkIII, HBJ8L39031
>>>
>>>
>>> ----- Original Message ----- From: "Richard J. Hockert" <rjhco at att.net>
>>> To: "Mike" <phoenix722 at comcast.net>
>>> Cc: "Healey List" <healeys at autox.team.net>
>>> Sent: Monday, October 24, 2016 6:04 AM
>>> Subject: [Healeys] tire pressure
>>>
>>>
>>> The correct tire pressure will vary widely from car to car, depending on
>>>> tire type and static weight distribution.
>>>>
>>>> The correct method for determining proper tire pressure is as follows:
>>>>
>>>> 1. Use a soft white chalk to mark several vertical stripes across the
>>>> tread and sidewall of each tire;
>>>> 2. Drive the car hard, including tight turns;
>>>> 3. Check the chalk marks. The marks should end at the knuckle where the
>>>> tread and sidewall meet. Some tires have small triangles or arrows to mark
>>>> the knuckle.
>>>> 4. If the chalk remains on the tread, the pressure is too high. You are
>>>> not using all of the tire.
>>>> Chalk ends below knuckle, tire pressure is too low. The tire is rolling
>>>> over too much.
>>>>
>>>> Best regards,
>>>> Jim
>>>>
>>>>
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>>>
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>
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