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Message: <blockquote data-quote="chris" data-source="post: 1662671" data-attributes="member: 208377"><p>I dont know alot about welding but in my experience of wire welding without a bottle was not fun.  The weld always turned out ugly and didnt bond very well.  My father-in-law fixed several cracks in car frames and I have watched him do it.  He grinds into the crack to make a V in the crack.  Then he makes several passes on the crack until it is filled completly in.  He does all of this with the lowest heat possible and always give the frame time to cool down between passes.  Once the crack is filled in he grinds it smooth, then uses a plate like you suggested, again taking care not to over heat the frame.</p></blockquote><p></p>