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  #1  
Old 11-06-2020, 08:23 PM
Charlie12 Charlie12 is offline
 
Join Date: Oct 2014
Location: Port Orange FL
Posts: 53
Default Marvel-Schebler carb floats

Previous threads on Rotax carb floats may have died of old age---I can't find them. I am again starting my annual condition inspection and would really like to try the Marvel-Schebler epoxy carb floats that the M-S website says directly replace Bing 861184 floats, which is what were in my engine when it was new. I have gone thru 861184, 861185, 861188, and 861189 floats in 4 years/290 hours and would like to get off that merry-go-round. Has anyone has RECENT experience with Marvel-Schebler floats? Van's builder support told me that they have not.
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344 hrs as of 8/27/2021
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  #2  
Old 11-06-2020, 08:49 PM
smoothy58 smoothy58 is offline
 
Join Date: Feb 2008
Location: East Central Florida
Posts: 82
Default

I replaced my 912 ULS Rotax floats with MS floats in July 2020. Empty weight for the pair was 5.8 grams. No problems to date.

Cheers!
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  #3  
Old 11-07-2020, 12:06 PM
NinerBikes NinerBikes is offline
 
Join Date: Dec 2018
Location: Granada Hills
Posts: 1,303
Default

Quote:
Originally Posted by smoothy58 View Post
I replaced my 912 ULS Rotax floats with MS floats in July 2020. Empty weight for the pair was 5.8 grams. No problems to date.

Cheers!
Are you running Mogas, and if so, do you know the % of ethanol in your Premium gas?
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  #4  
Old 11-07-2020, 12:23 PM
smoothy58 smoothy58 is offline
 
Join Date: Feb 2008
Location: East Central Florida
Posts: 82
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93 octane non-ethanol Mogas.
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  #5  
Old 11-16-2020, 10:26 PM
Charlie12 Charlie12 is offline
 
Join Date: Oct 2014
Location: Port Orange FL
Posts: 53
Default new "Rev. B" floats

I just received a set of carb floats from Marvel-Schebler. The invoice lists them as "Rev B" of part no. MS80-430. The top has corners chamfered a bit compared to the original version shown in the photo on the M-S website, presumably to reduce the weight. Cost is roughly the same as Rotax floats.

I weighed them today and the result is encouraging. One set weighs 2.92+2.93=5.85 grams. Second set weighs 2.78+2.75=5.53 grams. This is very close to what my most recent set of Rotax floats weighed when new. M-S says the epoxy will not absorb fuel and get heavier. Fingers crossed.
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  #6  
Old 03-21-2021, 08:44 PM
N456TS N456TS is offline
 
Join Date: Aug 2017
Location: NC
Posts: 37
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Hi. I just got two pairs. Did your sets look like mine?

The sets sent to me appear to be foam floats covered in a blue coating. Didn't they used to be hollow epoxy shells? If you look closely, you can see what appears to be black foam in some areas, as the coating isn't uniform. If the coating is keeping the fuel out, then I'm not sure how well these will last...

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  #7  
Old 03-22-2021, 06:28 AM
JFCRV12 JFCRV12 is offline
 
Join Date: May 2015
Location: Liberty Township OH
Posts: 232
Default Video

Here’s a link to a video I did in December after mine original Rotax ones. The Marvel floats were more uniform in weight and lighter then new Rotax ones. I bought both, weighed them, and decided to use the marvels. ~20hrs since install and zero issues

https://1drv.ms/v/s!Atwwakv8E39y1I4FXdwfiOSVU96LtQ
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  #8  
Old 11-25-2022, 09:38 PM
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strahler13 strahler13 is offline
 
Join Date: Jan 2005
Posts: 414
Default Carb Floats

Any update on carb floats? Need a referral and link to supplier.

Thanks,
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  #9  
Old 11-26-2022, 04:42 AM
Jcurry Jcurry is offline
 
Join Date: Jul 2021
Location: Cocoa,Fl
Posts: 137
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I put the MS floats in a year ago with no problems so far.
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  #10  
Old 11-26-2022, 02:42 PM
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cactusman cactusman is offline
 
Join Date: Oct 2012
Posts: 562
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so far so good here...make sure you put them in the right way..else you will see gas out the overflow tube...ask me how i know...
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