<VV> Need some discussion on "Jet", high tech Ceramic coatings

[J R Read_HML]

Maybe Bob was using a rectal thermometer?
Later, JR

----- Original Message ----- 
From: "Ron" <ronh at owt.com>
To: "Bob Bauer" <robovair at sbcglobal.net>; "Jack Kean" <jkean at sbcglobal.net>
Cc: <virtualvairs at corvair.org>
Sent: Monday, June 02, 2008 9:52 PM
Subject: Re: <VV> Need some discussion on "Jet", high tech Ceramic coatings


>I can't believe that the exhaust manifolds have much of anything to do with
> cooling the engine as they are well downstream of the heads.
> RonH
>
> ----- Original Message ----- 
> From: "Bob Bauer" <robovair at sbcglobal.net>
> To: "Jack Kean" <jkean at sbcglobal.net>
> Cc: <virtualvairs at corvair.org>
> Sent: Monday, June 02, 2008 4:48 AM
> Subject: Re: <VV> Need some discussion on "Jet", high tech Ceramic 
> coatings
>
>
>> Wht I am finding out is that they seem to insulate to well.  With the
>> shrouds on, I can't get enough temperature to open the bellows.  As I 
>> run,
>> the temperature starts to build to a point where I begin to overheat,
>> Temp's around 400  in a Monza  110 horse.  Then the temp drops sharply to
>> about 300 then slowly climbs back to 400 then drops back to 300.  What I
>> have been able to discover is that the coating insualtes so well, the
>> bellows are not getting enough heat to cause them to open.  The motor
>> begins to overheat, to a point where they do open, then as the temp 
>> drops,
>> they close again allowing the heat to build up.  And so on.
>>
>>  My purpose was to insulate the heat to keep it from radiating up into 
>> the
>> motor, my goal was to help cool [reduce heat] but I am afarid I have gone
>> to far.
>>
>>  Bob Bauer
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Jack Kean <jkean at sbcglobal.net> wrote:
>>  Interesting. I purchased a car (140/4speed) which had the manifolds
>> coated. I am curious. Why do you not like what you see?
>>
>> jack kean
>>
>> Bob Bauer wrote:
>> Has anyone on this list ever done any  Jet coatings.  Not the rattle can
>> type but the high dollar,  high tech  Professional grade metal/ceramic
>> coatings  on any Corvair parts.  I had some  exhaust manifolds done and I
>> don't think I like what I see.   It seems they work too well insulating
>> the heat.         Your thoughts!!!!         Bob Bauer
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