Cowl Vents - yay or nay? - Page 2 -

Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

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Old 12-29-2010, 09:00 PM   #11
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Does it really make sense to cut corners and not do it right. Why go through all the trouble of replacing the floor only to have the cowl leak and destroy all your hard work.
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Old 12-29-2010, 10:51 PM   #12
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I did the water test today and got the same results for both sides. The water went straight through the drain hole and down onto the ground...which is exactly what it's suppose to do, right? I may have cleaned it out a bit last year when i restored the front engine bay, so i'm assuming when it was clogged for 40+ years it rusted the floor some.

My normal UPS driver was in the neighborhood today and he stopped by to see the progress. He said my cowl vents actually don't look that bad and a wire brush followed by some rust treatment will do. He also said I'm 1 step away (removing window and wiper) from having everything clear to replace the cowl and not worry about it ever again. Guess i'm at the crossroads in this case?
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Old 12-30-2010, 03:26 AM   #13
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It could have been one of the glass gaskets leaking that let water in the car that rusted out the floor pan.The cowl is the first thing that gets blamed but there is other ways like the leather gaskets on the wiper arm shaft holes that rotted away 20 years ago.
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Old 12-30-2010, 11:17 AM   #14
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You'll have to decide what to do about this at this point. You do not want to have an issue with the cowl leaking after the car is back together and finished. As you said, now it's not leaky, but be sure you're not one rainy season away from the cowl letting loose.
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Old 12-30-2010, 03:43 PM   #15
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Were you abloe to save the dirt dobbers?
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Old 12-30-2010, 08:16 PM   #16
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Just don't drive in the rain

For real though, it's rusty in there, do it right the first time to make sure. It'll be some work but you will surely sleep at night knowing it is done.
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Old 12-31-2010, 12:48 AM   #17
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If it was me i would cut the corners off the cowl por15 the whole inside and weld it back on.If you are going to use a aftermarket heat and air some don't use the cowl so you could shave the cowl vent off it.
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Old 12-31-2010, 09:48 AM   #18
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If you've already got the motor out, fenders off.. those signs of rust, and bad floor pans... you know what you have to do.

There will never be a better time than now, and you'll always wonder/regret if you dont.

How would you feel if you finish the car, paint it, new floors/carpet, wiring... then wash it, and feel a wet carpet.....
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