Re: [DML] Tire pressure was proper wheel alignment specs
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Re: [DML] Tire pressure was proper wheel alignment specs



Group,

Guess I must be used to dealing with vehicles with a much higher GVW than  
the DeLo.
What really matters, as one person has said is that the tire tread is in  
even contact with the roadway from side to side, hence better tread wear  
and better contact with the road for adhesion and control.   From what I  
have seen from MANY of the OEM doorpost plates AND from owners manuals is  
that the mfgr (and a many dealers) tends to UNDERinflate the tires in  
order to give the owner a feel of a smoother ride - something that THEY no  
doubt used as a selling point for the vehicle in the first place.   I will  
have to agree with those here that noted tirewear as a good indicator of  
what they CORRECT pressure is for your tire/vehicle combination.  It's  
just always been easier for ME to see tire wear down the center rather  
than along the outside, so that is why I personally start on the high side  
and work down from there.

But then how many drivers NOW days pay much attention to their tire  
pressure, much less take into consideration that if they are going to  
drive a long distance on a HOT summer day that it might be a good idea to  
take a break once into mthe journey and check tire pressures - more than  
likely to let a little out ;)  Due to heat expansion of the air.
I've had people come in the tire store with 55-60 psi in their tires on a  
hot summer day.   About the same number of casual drivers seem very  
surprised when you tell them that air actually leaks OUT of their tires  
through the rubber over a period of time ("I just checked the air in the  
tires 6 months ago, and I haven't driven it hardly any since then!  How  
can it be LOW !?")

Having not obtained my DeLo (yet), I will bow to those that have the  
experience with them.  Also, I had no idea that the wheels were a  
different size front-to-rear...   Why on earth did they (DMC) do THAT !?    
And as for not having the weight in the front,  that makes total sense.    
Is it the front rims that are taller ?  Hence the reverse rake look of the  
DeLo ?
If there is ONE thing I don't care for with the DeLo, THAT would be  
it...   (doesn't quence my desire to have one ;)  Is it possible/advisable  
to chance out that 'feature' and go with the same profile all around ???

This has turned out to be a nice discussion...  Thanks to all...
(good points David...)

Bruce


PS: I'd still rather FEEL the road than have a mushy ride...  If I wanted  
a 'sleep number' of 10 going down the road, I'd get a Caddy ;)


On Wed, 30 Jan 2008 09:51:07 -0800, David Teitelbaum  
<jtrealty@xxxxxxxxxxxxx> wrote:

> The front tires do not have that much weight on them so tread wear is
> not the best indicator for loading or adjusting tire pressure. The
> recommended pressure is 23#. 28 is rather high. You will have an
> easier time steering but hitting potholes will shake you up more, the
> tires won't "give" as much to absorb road shocks and vibrations. The
> steering wheel will transmit more vibration and road surface 'feel'.
> On one car I inspected they were using 40 psi all around. This is an
> extreme example but the doors really shook hard (and they were closed
> properly) and when we hit a bump it felt like the car left the ground!
> I would suggest starting with the recommended pressures and if you
> want to experiment at least you know how the car behaves at the
> recommended pressures. For normal street driving it should not vary
> more than 2 psi. Tire pressures should be checked cold, first thing in
> the morning before driving, with an accurate gauge. At least once a
> month. Don't forget the spare. I find it very difficult to rotate the
> tires on a Delorean unless I am driving the car!!!!!!!!!! It is not
> considered "good practice" to change the direction of a tire. Radial
> tires develop a "wind up" and don't always like to be rotated in the
> other direction. That's why on high speed tires they have a
> directional mark. That and the tread pattern. Modern rotation is just
> to move the tires front to back and not cross sides. And on most cars
> not to include the spare for obvious reasons.
> David Teitelbaum
> vin 10757
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