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10-19-2012, 11:19 PM
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#1 |
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Registered User
Join Date: Sep 2000
Location: Gold Bar, WA
Posts: 1,216
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Is this a bad idea???
I noticed the front seam on the roof of my GMC where the roof panel meets the drip rail has rusted loose....pretty much from the middle of the windsheild going around towards the passenger side and stopping over the passenger door. The roof top feels pretty solid close to the rail and the underside of the drip rail does too. I'm thinking the spot welds have rusted, but the surrounding metal is still good...at least that's what I'm hoping for.
What I was thinking of doing for now (just to keep the water from going in to the cab) was to clean up the area and run a bead of sillicone aound the drip rail. With the rainy season here I need to do something until I can get the time to weld it up properly. Is this a bad idea? Any help/ideas will be greatly appreciated.
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My Projects: 1960 GMC 1/2ton with 305 V6 (daily driver) 1963 Chevy 1/2ton 2wd...converting to 4x4 1967 Suburban 1/2ton 2wd My Girlfriends Projects 1985 Chevy Suburban 3/4ton 4x4 with 6.2L diesel, 4" lift, converted to TH-400, Warn Premium manual hubs, & Wildcat 315/75/R16 tires. (daily driver) 1978 Camaro Type LT with a Marine 350 & vortec heads, Rochester Carb, & roller cam 1978 Camaro Z28 |
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10-19-2012, 11:46 PM
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#2 |
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Registered User
Join Date: Jun 2011
Location: sacramento, ca
Posts: 108
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Re: Is this a bad idea???
My drip rail was rusty as well, the po put bondo to fill,I took the grinder with wire wheel to it, cleaned it up and put a solid layer of butyl throughout the seem.. Painted over it, I think it's good..
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10-20-2012, 12:19 AM
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#3 |
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Senior Enthusiast
Join Date: Feb 2007
Location: Spokane Valley, WA
Posts: 8,356
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Re: Is this a bad idea???
Mine wasn't rusty, but I wire wheeled it to bare metal, brushed on epoxy primer and then filled as much as I could with Evercoat Maxim self-leveling seam sealer. One nice benefit is the product fits into a standard caulking gun. The results can be seen on post #55 of my build thread:
http://67-72chevytrucks.com/vboard/s...=444502&page=3
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My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=444502 |
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10-20-2012, 12:40 AM
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#4 |
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Registered User
 Join Date: Aug 2010
Location: Burbank CA
Posts: 3,055
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Re: Is this a bad idea???
Silicone might temporarily seal it up, but could plague you forever after because nothing will ever adhere there if any traces remain. Use the seam sealer.
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10-20-2012, 07:16 AM
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#5 |
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Registered User
Join Date: Oct 2010
Location: Independence,KS
Posts: 1,477
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Re: Is this a bad idea???
I agree with the last too posts- silicone BAD, seam sealer GOOD!
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