On 10/29/04 6:41 PM, "jesse johnson" <jjmojo@BLAZENET.NET> wrote:

> Hey All,
> Bought a used catalytic converter with 90,000 miles on it. It's not
> clogged but there is a good bit of carbon buildup on the comb inside...
> before i slap it on my van .. i wanted to know.. can you clean the
> inside with something like carb cleaner to remove any build up? Anyone
> have any experience on this?
> thanks everyone,
> jesse
> 89 carat
> 
> 
Just a note of warning to the list.  A local salvager is in trouble because
he sold a used cat without certifying it.  Turns out it is a federal
violation to sell any cat that is not accompanied by a certification and
used cats must be tested to prove they work.

As for a cat with 90k on it, it is basically not cleanable by any method
available to anything but a big chemical concern.  Also a cat with 90k on it
is probably coming close to the end of its life span.  They are mandatory
warrantee for 5 years or 50k whichever comes first (for the shell and
physical) and 25k miles for the internals.

After 1995 the standard was changed to 8 years and 80k for oem but not for
aftermarket. 

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jimt
Planned insanity is best.
Remember that sanity is optional.
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