While restoring the water-jacket-cover on '29 super-8, I noticed that the inner water guide plate was electrically Spot-welded to cover. In the two '29 standard-8 engines I've overhauled, those were soldered together. Due to it's condition I think it's original. I didn't realize that spot-welds were being used for any car parts assembly during the '20s?

I tryed welding in the inner piece on this water-jacket-cover and that was a big mistake, I should have soldered it in like I did the others. When welding, the cover Warped much more than I thought it would. So when hammering it back into shape the thin welds started popping loose. Welded those again, It Warped some more. You get the picture. <img src="http://forums.aaca.org/images/graemlins/frown.gif" alt="" /> But I finally got it back in usable shape. Since it's so flexable I think the bolts will pull it down tight enough. <img src="http://forums.aaca.org/images/graemlins/smile.gif" alt="" /> So spot-welds or solder are the only ways to do that, with out warping problems, since there are so many small mounting holes in a very long piece of metal.