I broke the nipple on the radiator that goes to the overflow tank

[Al S]

1990 80 non-Q. While working on the back of the alternator, my elbow reached
over and leaned on the hose from the radiator to the overflow tank. @#$%$#@,
yikes.

I really don't want to ask Congress to bail me out, by buying me a new
radiator. So has anyone have a fix for this.

 I have some 1/8" copper tubing that fits into the hole on the radiator. I
am hoping that I can epoxy the copper tube, and broken plastic nipple onto
the radiator. But...

Any BTDT's. Recommendations for the right epoxy?

If no fix, can I temporarily plug the hole, sealing the radiator. Reduce the
amount of fluid, so that when it expands, the fluid will have some room to
move and not blow out the radiator.

Anyway, Happy Holidays everyone.

Al Streicher
Honolulu