Home › Forum › Ask A Member › Aluminum Gas Tank Repair › Re: Aluminum Gas Tank Repair
I use the method above. Air inside..least outside…tapping with a rawhide mallet as needed and on bad dents I will alternate heat with a cold source…IE; snow, ice, or dry ice. This allows the metal to get hot…then hitting it with dry ice it will contract and move back toward its original shape due to the temp difference.
I’ve done this on "neck cushion type tanks" like you are doing now, steel Firestone teardrop tanks, and even a few big Johnson SD tanks that are in fact pressure tanks made of very heavy aluminum.
The air pressure may need to be more for some types of tanks, but start with what Tubs is suggesting.
It takes time, and patience, but it will get there!
Greg