CorvAircraft> mixture problem

[jbfjr]

Mark,

My main concern is that I'm fairly certain I read one of WW's 
posts where he recommended running at full rich all the time, 
which probably would work for an Aircamper, but the fact you had 
an over-rich condition on takeoff worries me.  You've noticed that 
leaning the mixture levels out the EGT's...was your #2 
consistently lower than the others or was it random?  Does this 
indicate a somewhat uneven fuel vapor distribution?

Yes I would appreciate some of your EIS data, if you could email 
to jjr48 at slb.com.

I just get kind of nervous when one of the Corvair standard-
bearers like you, Mark Jones, et al, have engine problems.  Sure 
is a strong argument for an EIS...

Thanks,
John Franklin
GN-1 Aircamper
164cid Corvair
Richmond, TX


---------- Original Message ----------------------------------
From: "Mark Langford" <n56ml at hiwaay.net>
Reply-To: Corvair engines for homebuilt aircraft 
<corvaircraft at mylist.net>
Date: Thu, 6 Jul 2006 15:57:10 -0500

>John Franklin wrote:
>
>> Since leaning out your mixture control, have you noticed any
>> difference in any EIS parameters?
>
>I'm not exactly sure what you mean, but I lean it everytime I fly 
it, but 
>normally have it full rich for takeoff and the first thousand 
feet or so 
>(until I feel comfortable checking the mixture gauge and tweaking 
the 
>mixture), up until lately.  If I'm actually going somewhere, as 
opposed to 
>just flying around the neighborhood,  I fly it lean of peak, and 
have 
>noticed that the EGTs all get a lot closer together when it's 
properly 
>leaned, if that answers your question.  I'll send you a typical 
EIS data 
>file if you want to check it for various trends.  It's pretty 
interesting to 
>see the causal relationships...
>
>Mark Langford, Huntsville, Alabama
>see KR2S project N56ML at http://home.hiwaay.net/~langford
>email to N56ML "at" hiwaay.net 
>
>
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