is it possible to repair leaking rad?

i just bought an aluminum rad off egay. and it's leaking. only drove my car last summer and stored it. and i recently found out it was leaking.. grrr

 

Where exactly is it leaking from...

 

since it's still on my car it's hard to say exactly where it is but

as far as i see. it's coming from the actual fin. somewhere lower part of the rad

 

A radiator shop can fix that up no prob. They will pressure test and just solder it closed.

My brother got his fixed a while ago at a mom and pop shop... charged him 10 or 15 bucks.

 

i was watching "How its made" on the discovery channel and during the building process of the radiator, they heated up the fins and put the top and bottom on then melted lead to join the cuppling to the fins.

once you find where the leak is coming from, maybe you can repeat this process?

 

That is how they repair copper/brass radiators. Aluminum radiators use epoxy or are brazed together. Good luck getting solder to stick to aluminum.

I had a leaky tube in my rad. Just dried it out, cleaned it with alcohol, then JB-Welded that ish.

 

Cut open the end tanks above the offending tube, fill up with a TIG welder and the appropriate rod, then weld the end tank patches on and you are good to go.