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HelicopterMain Discussion › Brown spots on muffler
08-06-2007 04:07 PM  10 years agoPost 1
dvdking

rrVeteran

Willingboro NJ

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I have a lot of brown spots on my muffler does any one knows what can take those brown spots off the muffler.

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08-06-2007 04:08 PM  10 years agoPost 2
Chris Lupa

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Lancaster, UK

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"Fairy Power Spray", leave for a few minutes, then wipe away Not sure if you guys over the pond get it though.

Sponsored by CSM and QuickUK

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08-06-2007 04:33 PM  10 years agoPost 3
bobkins

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Bocholt, Belgium

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If it is a aluminium muffler then you could use some antifreeze (the glycol type). Put you muffler in an old cooking pot (don't make food with it anymore afterwards) together with the antifreeze and leave it on a low heat setting overnight in a well ventilated place. And your muffler will be nice and shiney again.

Greets Rob

Hirobo Shuttle Plus , Trex SE V2

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08-06-2007 04:41 PM  10 years agoPost 4
jmkirsch

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Rochester, NY

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Mother's Mag and Aluminum Polish: http://www.acehardware.com/product/...oductId=1420346

Use as directed. Works nice and not as much hassle and safer than boiling in antifreeze coolant.

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08-06-2007 04:57 PM  10 years agoPost 5
rckrzy1

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Hurst Texas

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Don't run fuel with castor is the easiest way.



Wildcat Fuels

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08-06-2007 05:03 PM  10 years agoPost 6
BarracudaHockey

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Jacksonville FL

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Crock pot.

Andy
AMA 77227
http://www.jaxrc.com

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08-06-2007 06:45 PM  10 years agoPost 7
cessna151

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Missouri...​Originally Indiana

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Try aluminium polish first, then try anti-freeze in a crockpot.

--Eagles may soar high, but weasels don't get sucked into jet engines!--

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08-06-2007 07:06 PM  10 years agoPost 8
lfalsetto

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COLORADO

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Whatever you do, do not use Simplegreen on Aluminum it will pit and discolor it.

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08-06-2007 07:19 PM  10 years agoPost 9
TDriver

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Portage IN

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I just cleaned two of them the crock pot is the way to go come out like new

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08-07-2007 12:57 AM  10 years agoPost 10
2themax

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San Francisco, Ca.

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Brown Spots

What causes the "Brown" spots in the first place??????

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08-07-2007 01:03 AM  10 years agoPost 11
EvoFlight50

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Southbury, CT

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Don't worry about it, it's better than having brown spots in your underwear.

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08-07-2007 01:04 AM  10 years agoPost 12
dkshema

rrMaster

Cedar Rapids, IA

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http://www.homemadesimple.com/sites...dissolver.shtml

Buy it at the local grocery store.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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08-07-2007 07:47 AM  10 years agoPost 13
Busher

rrKey Veteran

Manchester, England

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The brown spots are usually caused by running a fuel with castor oil in it. But i have found that some synthetics also stain a muffler brown, if you spill it unburnt on the muffler.

Try a fully synthetic brew after you have soaked the muffler in antifreeze (crockpot method)

Busher

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08-07-2007 11:02 AM  10 years agoPost 14
Captain Crazy

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Wakefield, England

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Autosolv or brasso work fine.Shiny!!!

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08-07-2007 04:18 PM  10 years agoPost 15
reddragon

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Brooklyn, N.Y.

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The brown spots are usually caused by running a fuel with castor oil in it. But i have found that some synthetics also stain a muffler brown, if you spill it unburnt on the muffler.
Remember even the Castor/Synthetic Mix Fuels also create those lovely Brown Spots. Castor ... the root of all evil.

Wayne - Fly it like you stole it! You're in good hands with Runryder!

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08-07-2007 04:45 PM  10 years agoPost 16
Heavy_Iron

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Wichita, KS, USA

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If you have brown spots in your underwear just turn it inside out Don't ask how i know...

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08-07-2007 04:49 PM  10 years agoPost 17
SSN Pru

rrElite Veteran

Taxachusetts

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heavy,

you ever just try turning them front to back? works just as well and you still dont have to use antifreeze or any other chemicals.

Stupidity can be cured. Ignorance is for life!

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08-07-2007 05:21 PM  10 years agoPost 18
maa44646

rrApprentice

massillon ohio

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never dull from the auto store works great too.

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08-07-2007 05:43 PM  10 years agoPost 19
marked23

rrKey Veteran

Lynnwood, WA

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I once accidentally bought Cool Power 15% Four-Stroke ... thinking that it was the same as the regular 15% air/heli. But the "four stroke" version has castor oil in it. I got the brown spots too.

-Mark

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08-07-2007 06:56 PM  10 years agoPost 20
w.pasman

rrElite Veteran

Netherlands

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I use chlorine solution. Leave it on for some time and then wipe off the remaining brown spots. But do this only with stainless steel, aluminum dissolves in chlorine.

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HelicopterMain Discussion › Brown spots on muffler
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