Ralph Hertle <ralph.hertle@[EMAIL PROTECTED]
> wrote:
>common_ sense:
>
>common_ sense@[EMAIL PROTECTED]
wrote:
>
> [...]
>> Serious question here - how can a Stainless Steel muffer/exhaust
>> system ever rust or corrode out? It should be good not only for the
>> life of the car, but for several hundred years more.
>
>
>
>My '97 Max doesn't have a stainless steel muffler/exhaust system. The
>piping is steel and the muffler is aluminized steel.
>
>You are right in that stainless steels do last a long time. Dissimilar
>metals, however, could cause corrosion of the stainless or plain steel
>due to the electromotive series.
>
>One anti-corrosion technique that is used on boats to prevent submerged
>metals from corroding is to attach a zinc metal block to the metal
>parts, for example, to the outboard engine. The zinc corrodes and the
>boat metals that are electrically connected to the zinc and that are
>immersed in the same water [electrolyte] do not. Zinc attached to the
>exhaust system may prevent rust. The zinc blocks that are available at
>your marine accessory store may need to be replaced from time to time.
>
>Attaching zinc blocks to the steel body may help prevent rust long after
>the thin zinc plating on the sheet steel has corroded away exposing the
>steel body panels to rust. That might be good for local areas subject to
>abrasion, water and salt.
>
>On the replacement system that I have, I opted for a larger diameter
>Warpspeed brand single pipe system of plain steel. They say that, given
>the mileage and condition of the car, the plain steel should last as
>long as the car.
>
>
>Ralph Hertle
Exactly right, and apparently its the sup****t brackets, not the
exhaust system components that are the problem.
Fortunately here in Phx Az, its not corrosion that's the problem, but
all the rubber parts failing do to the dry heat.
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