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  #1  
Old 09-01-2016, 01:34 PM
todehnal todehnal is offline
 
Join Date: Jan 2005
Location: Kentucky Lakes area in KY
Posts: 933
Default Stained Belly

I just finished my 200 hour inspection, part of which was to give'er a bath, and a quick waxing. When I got to the belly, I was shocked to see that my white belly had a yellow coating that would not wash of with soap, diesel fuel, or even with speedy spay cleaner/polish. It took a concerted effort with white speedy-rub rubbing compound, and a lot of elbow grease. The yellow cast almost looked like a nicotine stain, and started at the firewall, and extended all the way back to the tail, but it was more prominent on the right side where the exhaust is located. My tailpipe is cut to the plan specs, but I almost wish that it was longer. Any other RV 12ers seen this? Is this an indication that I am running very rich??

Any thoughts will be greatly appreciated............Tom
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2013- RV12, Kit #119. N123M First flight Nov21. It's a keeper!
1998- RV-9 tail kit, built and sold
1989- RV-6 tail kit, built and sold
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  #2  
Old 09-01-2016, 02:16 PM
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Tony_T Tony_T is offline
 
Join Date: Dec 2008
Location: Lacey, WA
Posts: 1,257
Default

I think this topic was up once before, I remember posting pictures. Here they are again.

So it looked something like this?


Try this cleaner:


After:


The Simple Green aircraft cleaner works quickly and well. Does not seem to damage paint or anything else. Wear rubber gloves and old clothes and don't let it drip on your face. I use a double bucket, and two sponges, one to apply the cleaner and then rinse in water. The other sponge in clean water to rinse. Goes fast, whole bottom done in no time at all.
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E-LSA RV-12 ULS
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  #3  
Old 09-01-2016, 02:48 PM
todehnal todehnal is offline
 
Join Date: Jan 2005
Location: Kentucky Lakes area in KY
Posts: 933
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Yeah, it looks like that Tony. Thanks. Except mine was worse, I think. Of course, I haven't noticed it, or taken any extra effort on the belly in 200 hrs, other than a quick wash and rinse with a hose. This time, I had mud on the wheel pants and had to do some extra cleaning on the bottom end. So, I guess it's just normal exhaust stain. I'll pay more attention now and try to determine just how quickly the buildup happens......Tom
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2013- RV12, Kit #119. N123M First flight Nov21. It's a keeper!
1998- RV-9 tail kit, built and sold
1989- RV-6 tail kit, built and sold
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  #4  
Old 09-01-2016, 04:33 PM
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scottmillhouse scottmillhouse is offline
 
Join Date: Apr 2007
Location: Madison, AL
Posts: 309
Default

Mine is the same at only 70 hours with most from my Oshkosh cross county. Where do you buy this stuff?
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New RV-7A N579RV first flight 6/2019, now in phase I
RV-12 N319RV, 328 hours, purchased RV-12 sold, RV-9A, 536 hours sold, RV-7 sold, Kitfox sold
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  #5  
Old 09-01-2016, 04:47 PM
philrisl philrisl is offline
 
Join Date: Apr 2014
Location: Deltona, FL
Posts: 25
Default

Aircraft Spruce has it.
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  #6  
Old 09-01-2016, 05:45 PM
Top Cat Top Cat is offline
 
Join Date: May 2014
Location: Fort Mill SC
Posts: 332
Default

I use Wash Wax All to keep my RV-12 looking good on the upper surfaces. A couple of times a year I use their Belly Wash and Degreaser on the aircraft belly. I usually wait until after the annual for one of the cleanings so that my mechanic can see if there are any leaks or stains.

I just recently did a cleaning and it took maybe 30-45 minutes and looks great afterwards.

You can buy Wash Wax All products from Aircraft Spruce or directly from their site.

On their own site they offer a combo package with samples of the different products so you can try them out.
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  #7  
Old 09-01-2016, 05:46 PM
Piper J3's Avatar
Piper J3 Piper J3 is offline
 
Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 1,494
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eBay... http://www.ebay.com/itm/Simple-Green...IAAOSwgZ1XrDgT
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Jim Stricker
Hinckley, Ohio (1OA2)
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC N86203
1130 hrs Flying 46 Piper J-3 Cub N6841H
RV-12 E-LSA #120058 AWC July 2012 N633CM
RV-12 Bought Flying Oct 2015 with 48TT - Hobbs now 490

LSRM-A Certificate 2016
Special Thanks... EJ Trucks - Crew Chief A-4 Skyhawk
MJ Stricker (Father & CFI) - 1st Lt. Captain B-17H
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  #8  
Old 09-01-2016, 06:05 PM
schaplerrh schaplerrh is offline
 
Join Date: Mar 2014
Location: Alexandria VA
Posts: 290
Default simply green extreme

Is the simply green extreme safe to use on unpainted aircraft, i.e., will it harm the aluminum?

Robert
RV7

Last edited by schaplerrh : 09-01-2016 at 06:14 PM.
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  #9  
Old 09-01-2016, 07:06 PM
Piper J3's Avatar
Piper J3 Piper J3 is offline
 
Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 1,494
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Quote:
Originally Posted by Tony_T View Post

Try this cleaner:

Wall Street Journal - didn't notice the upscale drop cloth...
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Jim Stricker
Hinckley, Ohio (1OA2)
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC N86203
1130 hrs Flying 46 Piper J-3 Cub N6841H
RV-12 E-LSA #120058 AWC July 2012 N633CM
RV-12 Bought Flying Oct 2015 with 48TT - Hobbs now 490

LSRM-A Certificate 2016
Special Thanks... EJ Trucks - Crew Chief A-4 Skyhawk
MJ Stricker (Father & CFI) - 1st Lt. Captain B-17H
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  #10  
Old 09-01-2016, 08:09 PM
guccidude1 guccidude1 is offline
 
Join Date: Mar 2008
Location: Reno NV
Posts: 523
Default Stained Belly

I use simple green also, but the household variety, cut 50% with water on the belly of my RV-9. It is really good on oil and exhaust stains and as you can see the link below, available at Walmart. Dan





https://www.walmart.com/ip/Simple-Gr...eaner/22301219
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