if your welding ON to it, just fill it up with water.
if your welding ON to it, just fill it up with water.
I have done it on my ae86 tank and had it filled and welded 3 times and it's easier and safer than you think. All those tips are nice and all but not needed. All you do is put a small amount of detergent in it then take to your local car wash and hit it with the high pressure wash. Have the lid off where the fuel float is and hit it with the water through there and through the snout. It will fill right up with suds, use half of your dollar on that then the other half of your time putting it upside down and then cleaning the rest of the suds out. What blows up is the petrol vapor thats coming off the walls of the tank, if you can't smell petrol in it then it can't blow up, simple as that.
that's a very big no. I tried that and the small pocket of air inside my motorbike tank where I was welding was enough to combust, lets just say I didn't have a dent anymore in my tank after that point.
Last edited by Sam-Q; 6th March 2010 at 11:35 AM.
Sam is spot on the money. I welded a ring onto my tank to accept an in-tank surge/pump assembly and prepped the tank exactly as Sam did. Once it didn't smell any more I hit it with the welder.
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