I recall in the late 80's a friend of mine had a problem with his street TR6
and I offered to slide under the car and see if I could figure out what was
wrong...
It was dark under there, but with a small dim work light, I quickly figured
out that one of the long studs that the differential hangs from had snapped
loose from the frame...
...but the horror came as I panned the little light around and looked at his
frame...
It was much like a submersible cam panning by an old Civil War Iron clad...
peering through the big gaping holes in the wreck, your imagination takes over
and you wonder if you're going to see the skeletons of the sailors that went
down with the ship...
I wasn't quite sure why his car hadn't simply collapsed already....
This was in California, but he had shipped his car from New Jersey....
--Justin
On Jan 10, 2013, at 3:47 AM, <yellow04@tr4racer.com> wrote:
> Good question.
>
> The ladder frames under the TR2-TR4 seem to be much more rust resistant than
> the wishbone frames under the TR4A-TR6. I have come across numerous rusty
> project cars over the years, and have seen plenty of rusted out TR3's and
> 4's with what appear to be good frames, but I have never seen a rusty TR4A,
> 250 or 6 that did not need extensive frame work. I should add I have come
> across plenty of nice wishbone framed Triumphs sitting on frames in dire
> need of attention.
>
> I know the spring towers and cross members are different between the ladder
> and wishbone frames, and I believe the newer wishbone frame design is more
> robust. However, because of their propensity for rust, I'd venture a guess
> that the wishbone framed cars share the probability of failure in the areas
> Joe mentioned.
>
> Remember, the stess we put on these cars running them on track with today's
> racing tires is way beyond what the designers ever dreamed possible. You
> need to reinforce many key areas, keep the frame clean, paint it with
> something that will not hide cracks, and be very diligent with close
> inspections between race weekends.
>
> Henry
> yellow04@tr4racer.com
> ----- Original Message -----
> From: "sherry robyn" <sherryjimmy6116@att.net>
> Subject: Re: [Fot] TR CHASSIS FATIGUE - A CAUTIONARY TALE
>
>
>> Do TR6s (1974) have this weakness also?
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