If your radiator neck is like most of the other models it is not repairable. Rebuilt radiators can be purchased at Reseda Radiator in Reseda, CA (818) 342-5154 very inexpensively. I had to replace my radiator for the same reason. The charge was $100. plus a core charge of $75 refunded when you send your old one back to them. Of course, this was a different model and the price may be a little different for yours.