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Posted for "Christopher Zavatson" <Christopher.Zavatson@udlp.com>:
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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.
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Lorn H. 'Feathers' Olsen, MAA, DynaComm, Corp.
248-478-4301, mailto:lorn@dynacomm.ws
LNC2, O-320-D1F, N31161, Y47, SE Michigan
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