Reply To: sealing a cork carb float.

[mr-asa]

It may have nothing to do with fuel resistance? It may be that they sealed the cork to make sure that if it had any loose parts it would prevent the pieces from clogging the jets.
You have to remember that these motors were not designed to last as long as they have.

For me, I’d probably use a 2-part epoxy specifically designed for fuel. Once they are are set virtually nothing chemical touches them.

Marine-Tex is supposed to have a good reputation with fuel
http://www.v8buick.com/index.php?threads/fuel-resistant-epoxy-immersion-test-very-interesting-results.307765/