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Old 05-06-2019, 09:01 PM
dmattmul dmattmul is offline
Join Date: Dec 2015
Location: Spring Hill, FL
Posts: 39
Default Bing carbs

I have these same floats on a HKS700E flying for the last 2 years. Building a RV-14A and about 50% though this airframe. Engine arrives in a few week. I dropped the bowl on my 2 Bing 64CV carbs on my engine. 3 were at 3.1 grams and the third at 3.38 grams. Will keep an eye on these. Great posts on VAF, thanks for letting me know of the issue. HKS never said a thing.
RV-14 QB building, Lycoming 390 Thunderbolt arriving Feb 2019, EFII-32 Ignition and Fuel, hope to be flying fall of 2019 !! Dues paid+ of course !!
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Old Today, 06:44 AM
Piper J3's Avatar
Piper J3 Piper J3 is online now
Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 1,344

It looks like I’m joining the “club” myself. I’ve been having rough engine in mid-range and now rough idle after hot restart. 5500 rpm cruise remains very smooth. Yesterday’s flight had a slight fuel vapor smell in initial climb. These floats are original with 425TT using 93E10 exclusively.

I’d like to use Marvel-Schebler floats but they are unavailable. Last we heard they are redesigning to achieve 7-gram weight. So, I placed an order with LEAF for 861-189 floats and new bowl gaskets. $345...

I’ll install floats later this week and report back on condition/weights of floats as removed. The old floats will be left out to “dry” and then stowed in the airplane to be used on-the-road if necessary.
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 425

LSRM-A Certificate 2016
Special Thanks... EJ Trucks - Crew Chief A-4 Skyhawk
and MJ Stricker (Flight Instructor) - 1st Lt./Captain B-17H
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Old Today, 08:40 AM
bobg56 bobg56 is offline
Join Date: Nov 2018
Location: Peachtree City, GA
Posts: 58

That was the first sign, smelling gas at climb out, I put about 50 hours on them is all, then got the -189C from Lockwood, we'll see how long these last.
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