Kevin, I had to laugh at myself when I read your suggestion of laying the radiator face down and using a couple of feet of radiator hose to get water into it to test it! (I could have saved myself some $$ if I had been smart enough to come up with your plan!

I am attaching a couple photos of a soldering iron I have on hand that has a bit of a larger tip on it. Is it as large as you think I should have, or are you suggesting one of those irons that are about 1" wide? (Serious question!)
Attachments
Heavy Soldering Iron (1).JPG (218.28 KB, 82 downloads)
Heavy Soldering Iron (2).JPG (216.25 KB, 82 downloads)


Nick
1940 KC Model 1/2 Ton Pickup Project
(with '37-'39 Bed and what we think is a '42-'46 Frame)
Taos, New Mexico