Hi Greg, If you go with zinc plating, originally it was yellow(chromate)
zinc. Caswell plating has a kit that works nicely, but if that's all
your going to do, it would be cheaper to have it done professionally. On
a 76, there's actually quite a few engine parts that were originally
yellow zinc, so you may want to have everything done at once. John
Mitchell 76 TR6
Greg wrote:
> For those of you that have TR6's with the air injection rail on the exhaust
>manifold, how did you "restore" that portion of the exhaust system? If I use
>the OEM 1976 exhaust manifold, It has the air injection ports tapped into each
>exhaust runner on the manifold with a threaded pipe fitting which then feeds a
>common pipe or rail. All of this air injection system attached to the
>exhaust manifold is discolored and rusty looking from 30+ years of high heat
>conditions. Would you ceramic coat all of it? Or just media blast them the
>air injection components? Obviously, removing the air injection system and
>plugging the tapped holes in the manifold is one solution, but at this point,
>I prefer to keep it OEM. If I were not going OEM, I would ditch the OEM
>manifold for a header.
>
> thanks, Greg H
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