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dlp Member
Joined: 28 Mar 2005 Posts: 374 Location: Bothell, Wa
1990 Chevrolet Camaro IROC-Z
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Posted: Sat Oct 24, 2009 7:17 pm Post subject: Anyone have T-Tops that leak? I have the fix... |
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Before I repainted my car I stripped everything off of it. The T-Tops leaked on my car and I planned to fix this before it was put back together. When I pulled the weather stripping from the t-bar I noticed alot of rust in the channel that held the weather stripping. After an attempt at cleanning it up I realized that the weather strip channel lip was gone due to rust. I bought the last T-bar in GM's dealer stock and commited to not leting this happen again.
Long story short, I bought a large package of 3M Strip-Calk when it was time to install the new weather stripping / t-bar. The 3m product wasnt cheap but my car doesnt leak a drop now. I didnt need much calk, and have 75% of the product leftover.
If anyone has T-Top leaks and wants to know how to stop them, they are more than welcome to let me know. I will donate the calk and knowhow.
I live in the town of Snohomish, west side of the valley. Post up if need help. |
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GREG DAVIDSON Member

Joined: 15 Mar 2008 Posts: 1159 Location: Salem
1989 Pontiac Formula
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Posted: Sat Oct 24, 2009 11:04 pm Post subject: |
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leaky leaky here ! lol i need almost every seal in my car replaced i have a spare t-bar to just need the seals or atleast a temp fix until i can afford ti but im in salem to far away for the meet and greet  |
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dlp Member
Joined: 28 Mar 2005 Posts: 374 Location: Bothell, Wa
1990 Chevrolet Camaro IROC-Z
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Posted: Mon Oct 26, 2009 4:31 pm Post subject: |
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| Pick up some of the stuff I mentioned earlier, fold the stock weather stripping back and start plugging holes with it. I didnt take any chances when I installed the new GM rubber, filled every hole so that the water would stay above the weather stripping. That is what GM should have done. |
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popballz Member

Joined: 18 Nov 2007 Posts: 533 Location: Tacoma, WA
1989 Pontiac Firebird
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Posted: Mon Oct 26, 2009 5:30 pm Post subject: |
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I have new weather stripping that I need to glue down, but not sure how,
did you just pump a lot of that "3M Strip-Calk" in the channel then put the rubber back in place? _________________ -Donald
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dlp Member
Joined: 28 Mar 2005 Posts: 374 Location: Bothell, Wa
1990 Chevrolet Camaro IROC-Z
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Posted: Tue Oct 27, 2009 4:59 pm Post subject: |
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The strip calk comes in thin, pliable strips. It's more like flat black water proof playdough.
If your installing new rubber, remove ALL of the old stuff along with any adhesive that might have been used to hold it in place. Remove the flat black T-bar trim piece, you will need to scrape all of the goo out of the channels and this will make it alot easier to due so. Once the t-bar is off the car you will see where the water goes when, not if, it gets below the weatherstripping. Plug every frigging hole you see in the t-bar supporting structure with strip calk before you reinstall the t-bar trim peice. Once the trim peice is clean, reinstall it.
IIRC, there are slots on all four corners of the trim peice, near the channels that hold the weather stripping. The slots were designed to let any water that got under the glass to drain down into the same channel that holds the weather stripping.
Plug those slots!.
Do not let any water get under the bulb of the weather stripping. I used 3m weather stripping adhesive to hold the new weather stripping in place, then pushed a thin strip of strip calk between the top of the weather stripping and the channel that holds it in place. Do the same thing were the horizontal WS transisions to a verticle condition ( A and B pillers).
Basicly, plug every opening that would allow water to get under the exposed bulb of weather stripping. Doing this creates an exit channel ABOVE the weather stripping instead of below. |
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