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Re: Carbon buildup and NOX

To: Peter Schauss <>,
Subject: Re: Carbon buildup and NOX
From: Jay Siegfried <>
Date: Sun, 11 Apr 1999 20:52:55 -0400
At 01:27 AM 4/11/1999 +0000, Peter Schauss wrote:
>When I took one of my "normal" cars in for the annual NY State 
>emissions inspection, my mechanic told me that sometime next year
>they will start enforcing a limit on NOX emissions.  He said that
>older, high mileage cars generally have significant carbon buildup
>and will, as a result, fail this test.  The cure, he said, would
>be an engine rebuild.  
>Since he mentioned a figure of about $2k, I suspect that he was 
>only talking about pulling the cylinder head and decarbonizing,
>possibly with a valve job thrown in.
>Does anyone have more specific facts on this?
>Any suggestions for preventative maintenance?
>Peter Schauss, Long Island, NY
>1963 BJ7
>1980 MGB

Snap-On markets a machine call Motorvac. The unit cleans the fuel rail and
decarbonizes. My friend has been using Motorvac in his shop for over one
year. I have used Motorvac on two of my cars and had great results.


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