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Old 09-18-2013, 07:13 PM   #3
brulaz
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I bought the vent cover made by the Fantastic Fan people specifically for their fan. This looks like it: http://www.campingworld.com/shopping...er-white/58894

Like yours, it asks you to mount the brackets on existing screws - and there are none. And when I took the old fan out for other reasons, there's nothing really to screw into except thin Al and foam anyway.

So I got 4 stainless steel bolts and self-locking nuts and drilled right through the trailer's shell to mount the brackets. And used a lot of 3M 4002 polyurethane Marine Adhesive under the mounting brackets and in the bolt holes.

Hasn't blown off over the last year.. But now I have to tear it all apart so I can do a complete replacement of the Fantastic Fan. The motor's mounting struts are cracked and wobbling causing it to make a horrible racket. My JB Weld and wire repair lasted a year but now there's another crack and the JB Weld itself is cracked. Just got a new fan.
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