> > My heat muff is held in place on the exhaust with 2 hose clamps but > there are many possibilities for incoming air to escape into the > lower cowl. Is high temp RTV suitable for closing up all possible > air escape routes around the heat muff? Or is there a better solution. > > Angier Ames -- Lorn H. 'Feathers' Olsen, MAA, DynaComm, Corp. 248-345-0500, mailto:lorn@dynacomm.ws LNC2, FB90/92, O-320-D1F, 1,300 hrs, N31161, Y47, SE Michigan --Apple-Mail-1-733037888 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=ISO-8859-1

I packed my heat muff with stainless steel Brillo pads. I believe = that this should help to absorb as much of the heat as can be from the = exhaust pipe. I have also rapped the Heat muff (under the clamps) = with=A0asbestos=A0equivalent=A0tape. I keep the #1=A0exhaust=A0gas probe = away from the clamp with RTV. I have been running this setup for about 3 = years without a problem.

Our heat rap is used for = both the carb (if you have one) heat and the cabin heat. RVs use 2 heat = muffs. I think that that would be a better setup. On my trip from = Detroit to Norfolk yesterday I flew at 11,500 ft with a carb temp of -6. = I could only raise the temp to +2. If my carb had iced, I could have had = a problem.

If = anyone knows, I would like to know what the temperature rise is on a = production plane. I have had an A&P tell me that the temperature = should go up by 20 or 30 degrees. I flew in a Tiger with a carb temp = probe and only saw the temperature go up about 10 degrees. Can anyone = out there tell me how far other carb temp gauges raise?

From: "Greenbacks, UnLtd." <N4ZQ@comcast.net>

My heat muff is held in place on the exhaust with 2 hose clamps = but there are many possibilities for incoming air to escape into the = lower cowl. Is high temp RTV suitable for closing up all possible air = escape routes around the heat muff? Or is there a better = solution.

Angier Ames

Lorn H. = 'Feathers' Olsen, MAA, DynaComm, = Corp.

248-345-0500, = mailto:lorn@dynacomm.ws=

LNC2, = FB90/92, O-320-D1F, 1,300 hrs, N31161, Y47, SE = Michigan

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