Scott,
Do you know if the Jigsaw vertical links are the same as the
undrilled vertical links offered by Rimmers?
Jason
On Mon, May 14, 2018 at 12:17 PM, Scott Janzen via Fot <fot at autox.team.net>
wrote:
> I?ve been using the trunnionless front suspension vertical link on my GT6
> that Canley Classics sells for the past two years. I?ve now had two fail
> the annual magnaflux tests. They cracked in different locations, one right
> at the machining line for the flat for the stub axle nut, on the back side
> where the steering arm passes through, and one on the upright at what
> appeared to be a casting mark, near the bump you see in the photo below.
> Neither crack was visible to the eye. The upright Canley sells no longer
> looks exactly like the photo - it now has a machined area on the back side,
> away from the wheel, much like stock ones. Maybe I just had bad luck, but
> between two cracks and some binding issues at the ball joint I had to
> rectify, I would no longer recommend these.
>
> I started using the Canley units when the stock ones developed cracks in
> the traditional place at the top end of the threads where the trunnion is.
>
> I have now installed uprights I got from Jigsaw Racing
> https://jigsawracingservices.com - Mark Field, in England. The main
> difference from stock is they are not drilled for a grease fitting or
> grease boring down into the trunnion, which should make them stronger where
> the stock ones usually fail. Mark races Spitfires and GT6s for himself and
> for customers in vintage racing and claims he has never had a failure. He
> further claims that the units are made in the original forging molds and by
> the same people that made the Stanpart units.
>
> Main point is, even though it?s a pain, pull your critical parts off and
> get them magnafluxed at least once in a while. I?ve become paranoid and
> this is now an annual exercise. The machine shop I go to usually does it
> for free while I am watching, probably because I?m usually dropping off
> engine parts where the real dollars get spent!
>
>
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