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Re: Catalytic Converter Color and Temp

To: "Eugene Balinski" <>, <>
Subject: Re: Catalytic Converter Color and Temp
From: "Harlan Jillson" <>
Date: Tue, 20 Apr 1999 04:24:44 -0500
   The catalytic converter runs hot because the mixture is rich not lean
 just the opposite of what you think of in cylinder temps and such..).  The
reason is the converter is there to burn the excess hydrocarbons left over
after combustion ( rich), which end up burning in the converter, hence less
emissions.  The richer you are running the more it's got to burn so the
hotter it gets.

-----Original Message-----
From: Eugene Balinski <>
To: <>
Date: Monday, April 19, 1999 10:32 PM
Subject: Catalytic Converter Color and Temp

>While under the car preparing it for the road, (see previous battery box
>posting) I
>noticed that the catalytic converter has a white deposit around the out
>of it perhaps
>indicating that it was running hot.  I also think that I remember thinking
>same when
>I had it on the road last.
>My question is, how do I determine if the catalytic converter is running
>hot, and if it is
>would this be an indication of a lean carb setting ?  What else might cause
>it ?
>I would hate to burn up the B because of a hot converter.
>Thanks in advance,
>Gene Balinski

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