cowl leak - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bucannon · 08-05-2009, 09:43 PM

okay so on my truck i pulled out the floor mat and found alot of rust.after sanding and priming the floor itook off the cowl and found rust holes under a pile of leaves. after cleaning it out and putting phosphorus on it, i started to layer on some black silicone.

my question is will this work and is there anything else i can do to enshure no more water leaks in because im getting ready to put in my new insulation and floor mat.

thanks yall!

spr85gmc · 08-05-2009, 10:21 PM

pics please i have the same leak

bucannon · 08-09-2009, 03:50 AM

Quote:

Originally Posted by spr85gmc

pics please i have the same leak

here ya go. sorry it took so long for me to upload them. but basically what i did was use black silicone(can be found at home depot) and every spot where the rust was in the cowl i just layered it on, and after a few tries i got the cowl sealed up, and after that i layered on a thick coat of primer to seal it just a little more.

as a final test i got a garden hose and let it sit n the cowl running and i moved it all over. and the cab was bone dry! so it worked and my new insulation and floor mat are in!

heres the links to the pics:

http://jamandjoe.bravehost.com/001.JPG

http://jamandjoe.bravehost.com/003.JPG

**old Rusty C10** · 08-09-2009, 10:55 AM

says you cant remote link these pics.. please shrink em and post em here

LBJ · 08-09-2009, 01:06 PM

I ran into some small rust when I was under the dash fixing the A/C-heater door controllers. I discovered that the water was coming in from the sheet metal seams under the leaf guard right in front of the windshield. There's a trough under there that lets you get to a few things and also lets water pass through to drain out at the bottm somewhere. For some reason, those weren't sealed properly at the factory I guess. No reason for them to start leaking since they are spot welded on assembly. I got some paste-form seam sealer and a putty knife and resealed all the way across best I could. I told the jackass painter to be sure and repaint over those seams and of course, he lied to me. Said he did but obviously did not. But, with the screen on, you cannot see down in there. Pizzed me off just the same.

08-05-2009, 09:43 PM	#1
bucannon Salty Sailor Join Date: May 2009 Location: Savannah, Ga Posts: 603	cowl leak okay so on my truck i pulled out the floor mat and found alot of rust.after sanding and priming the floor itook off the cowl and found rust holes under a pile of leaves. after cleaning it out and putting phosphorus on it, i started to layer on some black silicone. my question is will this work and is there anything else i can do to enshure no more water leaks in because im getting ready to put in my new insulation and floor mat. thanks yall!

08-05-2009, 10:21 PM	#2
spr85gmc Registered User Join Date: Jul 2007 Location: san antonio Posts: 648	Re: cowl leak pics please i have the same leak

08-09-2009, 10:55 AM	#4
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,276	Re: cowl leak says you cant remote link these pics.. please shrink em and post em here __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

08-09-2009, 01:06 PM	#5
LBJ Registered User Join Date: Jun 2007 Location: TEXAS Posts: 378	Re: cowl leak I ran into some small rust when I was under the dash fixing the A/C-heater door controllers. I discovered that the water was coming in from the sheet metal seams under the leaf guard right in front of the windshield. There's a trough under there that lets you get to a few things and also lets water pass through to drain out at the bottm somewhere. For some reason, those weren't sealed properly at the factory I guess. No reason for them to start leaking since they are spot welded on assembly. I got some paste-form seam sealer and a putty knife and resealed all the way across best I could. I told the jackass painter to be sure and repaint over those seams and of course, he lied to me. Said he did but obviously did not. But, with the screen on, you cannot see down in there. Pizzed me off just the same.



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