Packard Forum Index » Pre-War (1899-1942)

Thanks for checking that out for me. My tube has the correct bottom piece, but I have not removed the tube yet to see if I am lucky and have the ball up in there covered with solder. Been chasing an engine noise in one of the back cylinders.

As the intake manifold drain tubes were later discontinued, you can do quite nicely without it. Just make sure the bottom end is sealed so there is no vacuum leak, and go pursue your engine noise as the priority.

I figure the drain tube has not been working for a real long tome (40-50 years anyway). What year did they discontinue the use of it on the 320 CID engine? Maybe they also figured out how to have less boil out of gasoline at that time too, with a better float valve in the carburetor. I'll check for a vacuum leak.