Date:         Tue, 2 Nov 2010 19:46:45 -0400
Reply-To:     Larry Alofs <lalofs@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Larry Alofs <lalofs@GMAIL.COM>
Subject:      Re: checking castor
Comments: To: Alistair Bell <albell@shaw.ca>
In-Reply-To:  <FB7C134F-9CB4-4536-BEB6-B61532A9BB2D@shaw.ca>
Content-Type: text/plain; charset=ISO-8859-1

After reading the second thread a couple of times, there was one thing
that I still didn't get.  He takes the difference in camber with the
wheels 20 deg to the left vs 20 deg to the right and then multiplies
it by 1.5 to get the caster.  He gives no explanation for the factor
of 1.5.  When I look carefully at the info in the Bentley, sure
enough, the caster spec is 1.5 times the difference in the camber
readings.
   I assume that the factor of 1.5 is dependent on the suspension
geometry of the vehicle, an interesting problem in solid geometry
perhaps.
   Anyone with any insight about this should feel free to speak up.  :-)

Larry A.


On Tue, Nov 2, 2010 at 9:13 AM, Alistair Bell <albell@shaw.ca> wrote:
> Larry,
>
> yes, looking over the thread I agree. Mind you its still a pretty good
> resource, if a bit daunting .
>
> don't forget the "caster oil" needed :)
>
> alistair
>
>
> On 2-Nov-10, at 4:48 AM, Larry Alofs wrote:
>
> Thanks Alistair.  The thread in your link never really gets to caster,
> but toward the end he gives a link to the revised thread which does.
> His procedure helps me make some sense of the info in the Bentley
> which lets you check caster indirectly thru changes in camber at 20
> degrees left and right.
>  I think I'll go buy a digital level today.
>
> Larry A.
>
>