Replacement carb float

[Rich P. Bingham]

My Lizzie pulled up with a belly-ache the other day, woes with the Holley G I’m running. It’s a brass-body G I rebuilt about 7 years ago, using the available composite foam float available from Lang’s. As usual, it’s never just one thing wrong, found a little crud in the inlet port, and the float valve prospered by “lapping” with toothpaste. When I could not get the float level set properly, I finally accepted the fact that the float had become “waterlogged” in gasoline. Replaced the float with a new one of the same material, problem solved.

Just wondering if others have found this float material will eventually soak up and sink ?

Tiny bits of unidentified “crud” from the inlet passage

[RGould1910]

The float material I purcased from Langs was closed cell. I rebuild a few floats using this stuff some years ago and havent had an issue.
I dont know if this makes a difference but I puchased blocks of the material and made my own using originals as a guide. I never sealed them.

[Rich P. Bingham]

Both from the same source, perhaps we can assume it’s the same stuff ? It appears to be the same vis-a-vis the photo. Lang’s catalogue only specifies “modern material”. Just curious whether anyone else has found that it will absorb fuel “in time” ?

BTW, Nice work on that float, Richard !

[TXGOAT2]

Differences in mandated gasoline additives from one area to another might be a factor.

[Rich P. Bingham]

Pat, I wondered if that could be the case. I shouldn’t complain about failure after several years, but it caught me off guard.

[big2bird]

Nitrophyl is the material now in Holley, Carter, Quadrajets, etc.

It's impervious to gas and alcohol.