View single post by Larry Cronin
 Posted: Thu Apr 26th, 2012 04:44 pm
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Larry Cronin

Joined: Tue Nov 11th, 2008
Location: Vancouver, Washington USA
Brazing cast iron is the only way to repair. JB weld will hold a loose piece in place, but will let go if you ever set the fan down on that area. I have brazed engine blocks cracked from freezing and are subject to vibrations unequal to anything a fan can generate, and it holds great. If you sell the fan down the road, there would never be a worry for breakage. If a replacement does turn up, have the old one brazed anyway for a spare. Its far from trash.