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I never had a problem with stainless to stainless, or stainless into cast iron, but stainless to zinc can lock up the same way as brass on steel only more so.

As for the clothes pin stuff, that can be tested using thermo-couples in case anybody is interested in becoming an authority on the subject.

I'm not because I find old car politics tiring compared to engineering where data and game theory dominate optimal human behavior strategies.

I may have posted this before.

Using clothes pins on fuel lines to prevent vapor lock could have some sound basis. I believe this practice comes from the early days of the automobile, before fuel pumps were used. Fuel from the tank to the carburetor was gravity fed. The line from the cowl located gas tank to the up draft carburetor was not pressurized. Vapor lock occurs in the non-pressurized part of the fuel delivery system. So, placing a number of clothes pins would help to dissipate heat and relive or mitigate vapor locking.

This practice continued in later years when fuel pumps were used, but because of the pressurized line from the pump to the carburetor this practice had no affect on curing vapor lock. JWL

Howard, I saw the same show. I don't know if it will work but if your in a pinch, what will it hurt.
Also I just found this in Popular Mechanics Feb. 52.
Wes

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