Walbro spiral carb diaphragm

[Homemade]

New innovation from walbro. They say it’s impervious to the effects of ethanol.

http://www.walbro.com/spiraldiaphragm/

 

[DND 9000]

It`s already used on the 550XP carburetor AT-12

 

[JonCraig]

I had no idea... that seems really cool, actually.

 

[Fish]

New innovation from walbro. They say it’s impervious to the effects of ethanol.

http://www.walbro.com/spiraldiaphragm/

I have built up a pretty good tolerance myself.......

 

[Rob Stafari]

Really cool indeed. Nice to see some advancement in some 'old' technology that hasn't changed much. I'd still like to see ethanol go away, but the new diaphragms seem like they will hold up good to regular ol gasoline as well.

 

[AVB]

You can't away from the aging of the rubber components. Most fuels also have additives that affect these components.

As for spiral kits I wish if they haven't already leave out the tool out and lower the kit costs for us that do this regularly.

 

[Homemade]

You can't away from the aging of the rubber components. Most fuels also have additives that affect these components.

As for spiral kits I wish if they haven't already leave out the tool out and lower the kit costs for us that do this regularly.

I’m sure after a while you’ll be able to get it with out the tool. The nice thing is the tool has the setting for the spiral set. To replace the tools that don’t.

 

[Derf]

So...

They haven’t got any of the older HDA carbs listed on their site as compatible. And although the AT12 uses the spiral gasket they don’t even list that carb on their site.

$20 for a gasket and tool that “should last forever”... I guess that’s better than $2 and changing out old carb diaphragms every couple years. Hope you don’t mess up installing it as they point out how fragile it is.

I use non-ethanol gas in my OPE. My diaphragms seem to last plenty long, but if/when they sell just the diaphragm and make it available for the older carb’s I have, I would probably get it.