Hi Steve:
After reading Marcus' website a couple of years ago, I called Ted Schumacher at
TS Imported auto parts in Pandora OH. http://www.tsimportedautomotive.com/
Ted sent me a pair of TR4 steering arms which i sandblasted and repainted and
then placed on the shelf. I'll try them after I get the car back on the road in
standard configuration. Right now, Im going with what TVR provided to see just
where the "starting Point" is. Further, I havent touched the engine either.
Bob Tescione
mogman@rpa.net
"Hill, Stephen M EDUC:EX" wrote:
> Thanks Skip. Useful information on the GT6 arms. If I can't find TR4 arms,
> heating my arms or the GT6 arms is definitely an option. It seems
> heat-treating should follow the heating and bending. This may not be a
> service available around where I live. I would guess that heat treating
> could consist of gently heating the whole arm under a dull red and then
> burying it in dry sand for several hours . I don't think one needs to
> restore temper, just relieve internal stresses, also known as normalizing.
> And if you didn't do any of this on your arms, I didn't even bring up the
> topic and you can go back to forgetting about them :)
>
> Stephen
>
> > ----------
> > From: Skip Gurnee[SMTP:skip47@home.com]
> > Sent: Tuesday, June 20, 2000 6:20 PM
> > To: Hill, Stephen M EDUC:EX
> > Cc: 'TVR mailing list'; 'mtooze@tan.unl.edu'
> > Subject: Re: Steering Arms
> >
> > Steve-
> > I just realized what caused my steering rack arms to angle rearward when
> > the rack was attached at the front holes in the frame: I'm using shorter
> > steering arms from a GT6. They give quicker steering. They also don't
> > fit in STOCK form, they must be heated and bent to clear the brake
> > disc. I worried about the heating for 5 or 6 years, but no cracks or
> > failures have let me forget them (and they have seen some extreme
> > use!). The moral of the story is that there are alternatives out there.
> > You can find them on all sorts of cars, including Lotus, so you need not
> > think only TR3-4-6 when you're making a change.
> > Best,
> > Skip G.
> >
> > "Hill, Stephen M EDUC:EX" wrote:
> > >
> > > Hi Marcus. I was looking at your webpage on the TVR steering components
> > (see
> > > below) and wondered about the steering arms you were referring to. Are
> > the
> > > shallow droop TR4 arms early or late? Locally, I have found a source of
> > TR3
> > > steering arms. Would they be the same as the shallow droop ones?
> > >
> > > Stephen
> > >
> > > 1. The stock 2500m suffers from terrible bump steer. Bump steer is a
> > change
> > > in the direction that the wheel is pointing (with NO input from the
> > steering
> > > wheel) during suspension travel. The main cause of the bump steer is the
> > > stock TR6 steering arms. They cause a steep angle between the steering
> > rack
> > > and the tie rod end,. To cure, use the 'shallow droop' TR4 steering arms
> > > (not all TR4 arms are alike). It is likely that TVR designed the
> > suspension
> > > geometry with the TR4 part in mind, then some clever soul changed to TR6
> > > parts without consulting anybody...
> >
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