First, I want to say I appreciate everyone's response, both on and off-list,
about these broken parts. Your inputs have been most helpful!
The arms that broke actually had some areas boxed in, and it looks like a
factory job, however both breaks occurred near the hole for the ball joint
bolt, in an area where there is no "boxing". And yes, the spacer was
installed on the bolt, between the arms. One arm had even been repaired
(welded), and it broke again right at the weld.
Steve
==============
Message: 9
Date: Tue, 16 Oct 2007 18:26:42 -0700 (PDT)
From: Bob Rolfes <trbobtr@yahoo.com>
Subject: [TR] Upper A Arms and used parts
To: triumphs@autox.team.net
Message-ID: <170090.98676.qm@web90611.mail.mud.yahoo.com>
Content-Type: text/plain; charset="us-ascii"
Randall wrote <"FWIW, my upper arms have been reinforced by "boxing" or
welding a
plate
across the open underside. Not sure how effective it is, but they've
been
on there for a whole lot of hard miles and no signs of cracks. >
Also FWIW...
I also once had a TR3a upper A-arm break. I did had a spare later "parts"
chassis out back that gave up it's good A-arms for replacement. After I
pulled the good spares off, I found their undersides "boxed" as Randall
described. The parts were all original factory pieces, so it looks like at
some point, Triumph realized there was a weakness and decided to reinforce the
A-arms. I am not sure when this occurred, but probably some time after my old
TR's 1959 birth date.
Bob
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