Loose lower radiator tanks

[JasonS]

While looking for a multi radiator, I have noticed that a large portion of radiators have loose lower tank mounts. I found a nice radiator and would like to keep it that way. Any suggestions on why they fall apart? Vibration due to low idle speed or ???

 

[wreckerman893]

My uneducated guess is vibration and maybe flexing when on rough terrain.

I have had a few like that and the good news is that if you have basic brazing skills you can reattach the mount without a lot of trouble (other than pulling the rad).

They are soldered on...not welded..... so repair is easy.

 

[rlwm211]

I had to repair my radiator when I got my truck. I used a heavy duty sheet metal soldering iron, a good cleaning flux and solder rated for the materials I was putting together. The hardest part was removing the radiator so I could properly clean up the surfaces and access the places where it needed to be repaired. 3000 miles later it is solid and no leaks....

RL

 

[JasonS]

Road grime and salt had gotten between the tank and frame and rotted out the tanks on a number of radiators.

 

[jasonjc]

OK guys can you post up some more info on the solder, irons and stuff?? I need to fix 6 or 8 radiators. The last one I took to a shop and they did NOT do a good job at all. So need to start doing them myself.

 

[JasonS]

I've used Sn95/Ag5 solder (same as for cu plumbing) and acid core flux with a MAPP gas torch.