In a message dated 97-11-09 09:43:59 EST, 74137.3420@compuserve.com writes:
> On my TR250, front camber is adjusted quite simply by adding and
> removing shims between the frame and suspension links. Is the TR4
different
> in this regard?
>
> BTW, I have a Triumph Technical Service Bulletin from the 70's
that
> lists correct TR4 front camber as 2.5 deg for an unladen car. Most other
> published specs are for two passengers. ("two-up configuration" in Brit)
>
> I hope this helps, if it was simple stuff that you already knew, I
> apologize.
>
> Best regards,
>
> Tom Marincic
>
>
Tom, thanks.
I was also aware of the camber spec. (Three of my references for the TR4 -
from the '60's - call for unladen 2deg pos. Your Tech Bull could be a later
correction - Could you check to see if the Bulletin is for the TR4 and not
the TR4A?)
Your TR250 has a frame similar to the TR4A. This frame is different from the
TR4 frame since the TR4A frame was re-designed to accomodate IRS. I have a
factory shop manual for the TR4/4A. This says, in the TR4A section ONLY,
"reset the Castor and Camber angles by means of the shims between the inner
fulcrum brackets and the chassis." In the TR4 section there is no mention of
this. In addition, the Autobook 778 "Owners Workshop Manual" says "The basic
difference in the [TR4A front] suspension from that of the TR4 is in the
manner of fixing the lower wishbone arms. The inner fulcrum brackets are
shimmed and and vertical to the chassis as shown in ..." Note that this
specifically mentions "shims".
All my TR4 references explain how to measure camber; none tell how to correct
it if it is wrong. The references seem to indicate that "if the suspenion
components are correct then camber is OK." I take this to mean that
replacement of various "suspension components" [??], say after an accident,
is the only way to correct TR4 camber.
I know that other vehicles have adjustments (nuts or bolts or shims) to
correct camber. I am trying to figure out if the TR4 had something like
that. BTW - an alignment specialist once told me that my TR4 had adjustments
for castor and toe-in, but he could see no quick way to adjust for camber.
(At that time I didn't have a clue as to what other questions to ask him so
I let it go).
Again, thanks. Hopefully someone has a definitive answer to this. Cheers.
Art Kelly
|