Re: For Those Of You Who INSIST Car Manufacturers AREN'T Compensating for Road Crown When They Align At The Factory!

On Nov 23, 8:24 am, Kevin Bottorff <kb...@xxxxxxxxx> wrote:
jim beam <m...@xxxxxxxxxxx> wrote innews:jagmkk$3pd$1@xxxxxxxxxxxxxxxxx:





On 11/22/2011 09:20 AM, Kevin Bottorff wrote:
jim beam<m...@xxxxxxxxxxx>  wrote in
news:jagl7f$vcq$1@xxxxxxxxxxxxxxxxx:

On 11/22/2011 08:51 AM, Kevin Bottorff wrote:
Ashton Crusher<d...@xxxxxxxxx>   wrote in
news:5rkmc7111kgeth41cog8m0rdk1kqgbimgn@xxxxxxx:

On Thu, 17 Nov 2011 18:11:20 -0800 (PST), ChrisCoaster
<ckozi...@xxxxxxxx>   wrote:

http://www.hondaaccordforum.com/forum/suspension-14/car-pulls-left
-j ust -had-front-end-aligned-31053/

3

2

1

LET THE PIE SLINGING BEGIN!!

lmfao . . . .

That article has nothing about what manufactures do.    It's
possible some manufactures do but if they did you ought to see it
show up in the wheel alignment specs and I've never noticed any
specs that were different for the right and left sides.  I think
that 50 years ago it was more common for service stations to
purposely set the two sides up a little different to compensate
for road crown but that was back when suspensions were rather
crude and hardly anyone had power steering.

    Back in the 70s when I was doing alignments, compensating for
    road
crown was normal and the specs all showed it. HINT that wasn`t 50
years ago.  KB

are these manufacturer specs or aftermarket specs?  can you cite a
reference?

and what location was this?  freeways are typically not crowned, so
i'm interested to see whether freeway driving was anticipated.

It was the Bear alignment specs as well as the FoMoCo specs
themselves.

i've just been looking at 60's and 70's mustang specs.  i don't see
it.
  can you post a link to somewhere that does?

Also almost NO road is not crowned. they all have to shed water.

no, freeways are typically not crowned - for single lane it works, but
the curve gets excessive once you get much beyond two lanes.  they are
often slightly banked on curves, but most are flat on straights.

I am
rural so more pronunced crowned roads here also. Much more caster in
most modern cars also negates most noticeable crown effect these days
due to heavy power steering.  KB

power steering doesn't affect direction.

  No but it affects the ability to dial in more caster for stability. The
more caster the less tendincy to follow the crown.  KB



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__________________
Kev: Please, for your own sake and sanity do NOT attempt to validate
this for Jim.

He is simply not going to believe it nor understand WHY there is a
RANGE within which all alignment specs can be set up to achieve
whatever crown compensation(for left hand drivers in England or right-
hand drivers in most of Europe or the States) or driving feel is
desired. You might as well be arguing with Bill O'Really on his Fox
News show. LMAO!

Seriously, my 2008 Kia caster specs are positive 4.74deg PLUS/MINUS
1/2 degree. Make the left side 4.3 and the right side 5.1 and voila!
You've created a pull to the left on a perfectly flat surface, and
probably more than compensate for road crown on the right-hand side,
as in the United States, and yet still within that RANGE specified by
Kia. Do I need to draw Jim a picture??

Want to keep caster roughly identical side-to-side? Do it with camber
instead: Kia's 2008 optima specifies +0.5 to -0.5 camber fro both
left and right. Make the left -0.1 and the right -0.3 and you'll get
some compensation that way without creating unequal steering return.

Take care Kevin, and Happy Thanksgiving!

-ChrisCoaster
.

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