Sender: <marv@lancaironline.net> (Marvin Kaye)
To: lml
Date: Tue, 29 Jul 2003 09:52:48 -0400
Message-ID: <redirect-2506183@logan.com>
Subject: Re: Carburetor Heat
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From: "Lorn H. Olsen" <lorn@dynacomm.ws>
In-Reply-To: <list-2506057@logan.com>
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> Posted for "Christopher Zavatson" <Christopher.Zavatson@udlp.com>:
> .
> .
> What did make a big improvement was to take the intake air from within 
> the  engine compartment. That brought the temperature rise up 
> substantially. Although the temperature gauge only indicates a 15 deg 
> F rise it does enrichen the mixture enough to cause the
> engine to run rough until leaned. This change, of course, prevents the 
> use of the heat muff for cabin heat.
> Chris Zavatson
> N91CZ
> L360 std

Last month I took off the scat tube running from my air inlet in front 
of the number 1 cylinder to the heat muff. My carburetor temperature 
only went up about 8*F. I ran a CO detector in the cockpit for 3 weeks. 
I have no CO in the cockpit so I still use the cabin heat.

CO can come in to the cabin from anywhere. We should all probably have 
CO detectors. I purchased an AIM detector. In the last 2 years AIM has 
sent me 2 new detectors. Now the 3rd one has broken. I think that it 
must be the altitude. I fly at 15,000 a lot of the time.

Last night I placed a copper Brillo pad in the front of the heat muff. 
I will test it tonight to see what kind of carburetor temperature raise 
I get. I don't want to leave the copper pad in for to long because of 
the high temperatures and the dielectric differentials between copper 
and aluminum. If the pad works, I will buy 100 stainless steel pads 
because that is the minimum order quantity. If I buy them I will have a 
bunch for sale.
--
Lorn H. 'Feathers' Olsen, MAA, DynaComm, Corp.
248-478-4301, mailto:lorn@dynacomm.ws
LNC2, O-320-D1F, N31161, Y47, SE Michigan