Gas Smell

[eschaider]

Nathan,

The bladders in the majority of the stainless braided lines available today were never meant for gasoline. Their hose's rubbery bladders allow gas to seep slowly through the membrane producing the majority of the gas smell you probably notice. Boiling the gas in the carburetor on a hot engine after shut off will easily provide the rest of the gas vapor you are smelling.

The carb problem can be mitigated (but not completely eliminated) not only by a rebuild with newer, better components but also by using some one of the many aftermarket heat insulators between the carb and the manifold. Here is a link to an Edelbrock version of the product, click here => Carb Heat Insulator. Even with a good insulator you will still vaporize some of the fuel in the carb after shut down.

The hose is a more complete fix. If you replace your braided stainless hose with its polymer bladder with a teflon lined hose, like is used on braided stainless brake lines but larger, the seepage through the rubbery bladder will completely disappear.

If you prefer to avoid the braided stainless appearance the hose manufacturers also provide non stainless covers for the teflon lined hose.


Ed


p.s. I like your colors — same as mine ...