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What causes this firewall rust?

y5mgisi

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Aug 11, 2002
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Portland Oregon
I have rust on my fire wall. is there some kind of plugged up drains or something that cause this kind of rust? When it rains i can watch water seeping down from that seam. Like this,

77rustycowl.jpg
 
cowl seam rotting away, probably a bunch of leaves in there...
 
yup, the factory did some shoddy seam sealer work on the inside cowl drain area some times.. take a peak down thru the vent up top....

on mine, i fully welded it then re-seamsealed it from up top... then ran a bit of duraglass on the smoothed weld...



000_0005_1-2.jpg





i'd suggest some media blasting....
 
So, it might be an optical illusion, but when i look down threw the cowl where the winshield wiper arms are, i can see a seam wher it meets the fire wall. The seam i can see from above, appears to be about 2-3" higher then the seam i have pictured above. Is that possible? Or am i out of my mind?
 
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