I bought 45-degree fittings and had them welded to my radiator.  The welder came with high recommendations.  He had trouble getting a good weld, so he spread epoxy over it and applied a vacuum.  He told me that he pressure tested the work, and  I was fool enough to trust him. After successfully pressure testing my fuel tank, I decided to do the same with the radiator, just for gitz and shiggles.  The air blew out around the fittings about as fast as my little 2HP compressor could pump it in.  I ended up pulling the radiator out and found horrible leaks in both welds.  He didn't clean up after the weld, but just laid the epoxy down on top of the corrosion.  The epoxy just peeled right off with nothing more than a knife edge.

So now I'm looking for ways to recover the radiator.  I've cut back some of the weldment to expose the large seam that the guy left open.  There are chunks of epoxy stuck in various nooks and crannies.  The weld is semi easy to get a torch to.  There is enough structural strength to hold everything together, it's a matter of keeping the water in at this point.

Would ProSeal do the job?  With the radiator heated to 200F?
Has anyone tried welding a radiator with a gas torch?
Would one of the new miracle aluminum soldering rods do the job better?
I'm open to any ideas right now.

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        ,|"|"|,              Ernest Christley       |
----===<{{(oQo)}}>===----    Dyke Delta Builder      |
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