1A08,2A016,4A032 carburetor

[68impalass]

Has anyone here come up with a fix for these carburetor floats? I have a couple of these engines and the floats are not very compatible with this new gasoline. I'm also out of good floats and no one seems to have them. thanks

 

[mdlbldrmatt135]

I've got one I've coated with Kreem, I'm planning on trying it here shortly. The other option is to get a model 49009 brass float and fabricate a new bracket for it. CAREFULLY remove the old one using a soldering gun.

I've been in contact with Zenith fuel systems and they don't seem willing to do an upgraded one.

you can find the info on the brass one on the Yahoo 4A032 group: 4A032 : 4A032 Engine Group

HTH

 

[cranetruck]

Has anyone here come up with a fix for these carburetor floats? I have a couple of these engines and the floats are not very compatible with this new gasoline....

Can you expand on this, please...the compatibility thing?

 

[68impalass]

Yes, the gasoline with alcohol eats up the floats on these engines, and the floats don't float anymore. Here in NY I can't find any straight gasoline anymore. Anyone else????

 

[mdlbldrmatt135]

I've had no luck in the SW part of NY either....... Seems every pump has the "May contain up to 10% Ethanol" sticker........

 

[68impalass]

Is that PN49009 a briggs part number?

 

[cranetruck]

The float in my 4a084 is a brass one...okay then, thanks.

 

[mdlbldrmatt135]

Is that PN49009 a briggs part number?

Sorry... It's actually an Oregon P/n... I believe it converts to a Tecumseh P/n #632019

 

[DieselBob]

Yes, the gasoline with alcohol eats up the floats on these engines, and the floats don't float anymore. Here in NY I can't find any straight gasoline anymore. Anyone else????

Thats interesting. I never gave the alcohol in modern gas a thought. Just thinking out loud but does aviation grade gasoline contain alcohol ?. Maybe source from a small GA airport.

 

[PsycoBob]

I just got a NOS 2A016. Test-fired it... and found this issue when stooging around the forums. I've got my carb disassembled, and I'm waiting for the MEK to thin the semi-dried can of gas tank sealer. Supposedly Model-airplane 'fuel-proof dope' works well.

I've got a cheapo 2-stroke genset with a leaky float that needs sealing too.

I've also heard of people trying epoxy, with mixed results. Plastic epoxy might adhere better to the shellac on the .mil float, as well as to the chicom float. I'm guessing that rubbery sealant will adhere better than hard epoxy, but the sealant I've got is likely older than I am. Given it's age, I'm not very confident that they designed it to resist ethanol- or permeability to ethanol.

After work tomorrow, I'll try to remember to stop in at a hobby shop and see if they sell that dope.

 

[68impalass]

anyone come up with anything else as a fix for these floats? Maybe a good Briggs engine if they still make "good" engines!!

 

[wassbiplane]

Avgas-/-alcohol

At this time, AVGAS has NO alcohol---hopefully it never will, but you can't tell about the tree huggers.

 

[68impalass]

sorry to bring this up again. Anyone had any luck with this float problem? I bought a couple of brass floats for a Tecumseh, fabed up out of brass new brackets. Got any suggestions the best way to solder them on without having the float to leak? thanks

 

[wassbiplane]

No ALKY in AVGAS !! but it's about $4.50 a gallon here--OKla.