Need Coolant Line Size & Routing - Radiator to Coolant Overflow Tank - 1937 Twelve

[dpeeler]

Need help trying to complete the radiator to coolant overflow tank connection and had the following questions:

1. The copper line between the two appears to be 7/16" OD. I can't seem to find that size of copper line anywhere - does anyone know where I can find it? Will a 3/8" or 1/2" line work?

2. Are there any drawings or diagrams that show the routing of the line and are there are any fittings along the line?

Any help would be most appreciated!

David

[Dave Mitchell]

I believe 7/16 is correct. I found some a few years ago from a plumbing supply company. It is pretty simple - makes a 90 bend after connecting to the tank and goes forward to the fitting at the bottom of the radiator. Some years have a small angle bend from the frame over to the rad.