[TR] [Spits] GT6 Bump Steer

[tom white]

Bump steer is created by the tie rod end not traveling in the same arc as 
the outboard ends of the a-arms.  There are ways to adjust bump steer.  The 
most common way is to heat and bent the steering lever.  Caution here to let 
the lever coll naturally after heating.  Quenching the lever after heating 
will increase the probability of fractures.

In some applications bump steer can be adjusted by adding washers to the 
union between the tie rod end and the steering lever.  This raises the 
height of the tie rod end.

In most cases factory bump steer is not significant enough to create normal 
driving difficulties.  Adjustment of bump steer to zero is for competition 
cars on paved tracks.


Best regards,
Tom





>From: "Nolan" <foxtrapper at aceweb.com>
>To: <triumphs at autox.team.net>, <spitfires at autox.team.net>
>Subject: Re: [TR] [Spits] GT6 Bump Steer
>Date: Wed, 15 Aug 2007 06:02:19 -0400
>
>And to quote Carter quoting Rick Cline "after all that work, I couldn't 
>tell
>the difference on the racetrack ...".
>It's there, like it is in virtually every car.  And like virtually every
>car, it's not a big issue.  Even 4x4 pickup trucks, which tend to have
>remarkably horrible bump steer.
>
>It's caused by suspension motion.  So the easy and very effective band-aid
>is to limit suspension motion.  Most easily done with stiff springs.  Not
>that these cars had a lot of suspension travel anyways.
>
>There's nothing unique about the GT6 front suspension compared to the
>Spitfire.  So beware of an article that says something about it being a  
>GT6
>problem, but not a Spitfire problem.
>
>
>----- Original Message -----
>From: <Windoseat at aol.com>
>To: <triumphs at autox.team.net>; <spitfires at autox.team.net>
>Sent: Tuesday, August 14, 2007 7:51 PM
>Subject: [Spits] GT6 Bump Steer
>
>
> >I have read several articles on the fact that the GT6 has bump steer 
>based
> > on the location of the steering arms in relation to the chassis. Has
> > anyone
> > found a cure for this? I am about to look into the issue now that I have
> > the
> > chassis finished and painted. Imagine 37 years old and only two spots 
>that
> > rusted through on the outriggers and the rest is sound!
> >
> > Greg Wolf
> > Bridgewater, Michigan
> > 1970 Triumph GT6+
>_______________________________________________
>tswhitez123 at hotmail.com
>
>This list supported in part by the Vintage Triumph Register
>http://www.vtr.org
>
>Triumphs mailing list
>Triumphs at autox.team.net
>http://autox.team.net/mailman/listinfo/triumphs

_________________________________________________________________
Learn.Laugh.Share. Reallivemoms is right place! 
http://www.reallivemoms.com?ocid=TXT_TAGHM&loc=us