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02-16-2019, 08:25 AM
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Super Moderator
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Join Date: May 2005
Location: Locust Grove, GA
Posts: 2,626
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Do take the time to check these floats. I just checked 4 on an RV-12 that had all of them replaced late last year with the latest and greatest floats.
I weighed them yesterday and they were 10.6 and 8.5 grams respectively.
The customer did say the one side would intermittently overflow the carb.
Vic
__________________
 Vic Syracuse
Built RV-4, RV-6, 2-RV-10's, RV-7A, RV-8, Prescott Pusher, Kitfox Model II, Kitfox Speedster, Kitfox 7 Super Sport, Just Superstol, DAR, A&P/IA, EAA Tech Counselor/Flight Advisor, CFII-ASMEL/ASES
Kitplanes "Unairworthy" monthly feature
EAA Sport Aviation "Checkpoints" column
EAA Homebuilt Council Chair/member EAA BOD
Author "Pre-Buy Guide for Amateur-Built Aircraft"
www.Baselegaviation.com
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02-16-2019, 09:31 AM
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Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 2,066
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Quote:
Originally Posted by vic syracuse
Do take the time to check these floats.
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Are you talking about Bing or MS?
__________________
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Jim Stricker
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
Bought Flying RV-12 #120058 Oct 2015 with 48TT - Hobbs now 622 
LSRM-A Certificate 2016 for RV-12 N633CM
Special Thanks... EJ Trucks - USN Crew Chief A-4 Skyhawk
MJ Stricker (Father & CFI) - USAAF 1st Lt. Captain B-17H
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02-16-2019, 10:30 AM
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Join Date: Oct 2006
Location: St Louis, MO
Posts: 323
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Quote:
Originally Posted by vic syracuse
Do take the time to check these floats. I just checked 4 on an RV-12 that had all of them replaced late last year with the latest and greatest floats.
I weighed them yesterday and they were 10.6 and 8.5 grams respectively.
The customer did say the one side would intermittently overflow the carb.
Vic
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Vic, how far reaching are reports of float problems?
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02-17-2019, 11:51 AM
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Super Moderator
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Join Date: May 2005
Location: Locust Grove, GA
Posts: 2,626
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Quote:
Originally Posted by AirHound
Vic, how far reaching are reports of float problems?
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I have no idea on that.
These are the floats on the 912 ULS.
Vic
__________________
 Vic Syracuse
Built RV-4, RV-6, 2-RV-10's, RV-7A, RV-8, Prescott Pusher, Kitfox Model II, Kitfox Speedster, Kitfox 7 Super Sport, Just Superstol, DAR, A&P/IA, EAA Tech Counselor/Flight Advisor, CFII-ASMEL/ASES
Kitplanes "Unairworthy" monthly feature
EAA Sport Aviation "Checkpoints" column
EAA Homebuilt Council Chair/member EAA BOD
Author "Pre-Buy Guide for Amateur-Built Aircraft"
www.Baselegaviation.com
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02-17-2019, 01:08 PM
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Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 2,066
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Quote:
Originally Posted by vic syracuse
I have no idea on that.
These are the floats on the 912 ULS.
Vic
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Were they blue color or black color?
__________________
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Jim Stricker
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
Bought Flying RV-12 #120058 Oct 2015 with 48TT - Hobbs now 622 
LSRM-A Certificate 2016 for RV-12 N633CM
Special Thanks... EJ Trucks - USN Crew Chief A-4 Skyhawk
MJ Stricker (Father & CFI) - USAAF 1st Lt. Captain B-17H
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02-18-2019, 05:03 AM
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Super Moderator
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Join Date: May 2005
Location: Locust Grove, GA
Posts: 2,626
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Black Floats
Quote:
Originally Posted by Piper J3
Were they blue color or black color?
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The floats were BLACK.
Vic
__________________
 Vic Syracuse
Built RV-4, RV-6, 2-RV-10's, RV-7A, RV-8, Prescott Pusher, Kitfox Model II, Kitfox Speedster, Kitfox 7 Super Sport, Just Superstol, DAR, A&P/IA, EAA Tech Counselor/Flight Advisor, CFII-ASMEL/ASES
Kitplanes "Unairworthy" monthly feature
EAA Sport Aviation "Checkpoints" column
EAA Homebuilt Council Chair/member EAA BOD
Author "Pre-Buy Guide for Amateur-Built Aircraft"
www.Baselegaviation.com
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02-20-2019, 02:32 AM
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Join Date: Dec 2011
Location: TWIN WATERS, Queensland, AUSTRALIA
Posts: 89
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Bad Floats, Bad Fuel
Thanks for previous replies, - it seems that as well as sunk floats I had faulty, aged fuel. My situation & lifestyle sees me flying (or attempting to) only every few weeks or more. I had only 1/4 of a tank sitting for several weeks & after it was drained & refilled with Avgas 100LL the engine ran smoothly on the ground,- (unable to take it up due to inclement weather.) People here tell me that most schools with aircraft powered by Rotax 912 ULS engines use fresh BP95 Octane Mogas. Emphasis was placed on the fuel being FRESH. On my most recent attempt to get in the air I have discovered my fuel tank leaking from the level sensor plate on the front of the tank. When that new little problem is fixed I will try once again to commit Aviation. Cheers, DEAN
P.S, Mankind has sent men to the Moon, - how come we can't produce floats that float & continue to float??
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02-20-2019, 09:50 AM
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Join Date: Dec 2018
Location: Granada Hills
Posts: 820
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Quote:
Originally Posted by dinowal
Thanks for previous replies, - it seems that as well as sunk floats I had faulty, aged fuel. My situation & lifestyle sees me flying (or attempting to) only every few weeks or more. I had only 1/4 of a tank sitting for several weeks & after it was drained & refilled with Avgas 100LL the engine ran smoothly on the ground,- (unable to take it up due to inclement weather.) People here tell me that most schools with aircraft powered by Rotax 912 ULS engines use fresh BP95 Octane Mogas. Emphasis was placed on the fuel being FRESH. On my most recent attempt to get in the air I have discovered my fuel tank leaking from the level sensor plate on the front of the tank. When that new little problem is fixed I will try once again to commit Aviation. Cheers, DEAN
P.S, Mankind has sent men to the Moon, - how come we can't produce floats that float & continue to float??
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Bing carbs are from Germany... I am part German myself. That country, despite great car design and huge profit margins, still hasn't sent a man to the moon.
Failure usually has to do with a sub contractor. Think Morton Thiokol, failed seals with liquid hydrogen, and the Challenger failure.
Bing Carbs got a new vendor for the floats, probably to cut costs. They are foam and don't seem to do so well as the previous vendors products. If we could find the name of the company that makes the floats for Bing Carbs, perhaps it could be addressed, the problem.
There are aftermarket parts from MS that are available, for half the price.
Last edited by NinerBikes : 02-20-2019 at 09:52 AM.
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02-21-2019, 01:16 AM
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Join Date: Dec 2011
Location: TWIN WATERS, Queensland, AUSTRALIA
Posts: 89
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Seems like another type of floats have been issued; Part No.861189. Hopefully this will end this sad saga.. Cheers, DEAN
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02-21-2019, 05:37 AM
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Join Date: Apr 2014
Location: Port Orange, Fl
Posts: 931
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Quote:
Originally Posted by dinowal
Seems like another type of floats have been issued; Part No.861189. Hopefully this will end this sad saga.. Cheers, DEAN
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I've heard that before ... 
__________________
Tom
Port Orange, Fl
EAA #51411
RV-12 N121TK ELSA #120845; first flight 06/10/2015; 700 hrs as of 02/2020
RV-12 N918EN ELSA #120995 Eagles Nest Project; first flight 05/18/2019
SPA Panther N26TK; First Flight 03/13/2020
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