Leaks into GTC

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ard126k
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Leaks into GTC

Post by ard126k » Sat Oct 03, 2020 12:55 pm

I thought I'd make the most of a rainy day so I went and sat in the GTC to see where the water comes in, it's currently got its hardtop on for the winter.
Most of the leaks are from old door seals but I also found a trail of water down from the coat hooks on the B pillars. Easy enough to put a blob of silicone into the screw hole but I'm a bit baffled about how the water gets to the inside of the pillar as it is under the hardtop? There's no wind today so it's not that.
Any ideas?
Alex.


1971 SE5, 1977 SE6a, previously 1982 GTC

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DARK STAR
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Leaks into GTC

Post by DARK STAR » Sat Oct 03, 2020 7:34 pm

No idea, sorry - but I would be worried about where the water is going when it runs down inside the B pillar :o


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peter freeman
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Leaks into GTC

Post by peter freeman » Sun Oct 04, 2020 7:44 am

Going from memory - the gutter on the hard top was a place to start looking at for water getting in, don't forget the water can track to the post its not necessarily the point of entry.



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Leaks into GTC

Post by gtcse8 » Sun Oct 04, 2020 9:16 am

The B post on One of my old hard tops used to fill up with water, only discovered it when removing it from car and the water poured out all over me :evil:
The B posts are hollow so it may be that yours are full to the top??.
I just drilled a few small holes in the bottom to allow it to escape as I too could not understand where it was getting in.


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ard126k
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Leaks into GTC

Post by ard126k » Sun Oct 04, 2020 9:48 am

Thanks for all the input, just to clarify the leak I have is in the B post of the body not the hardtop. So Darkstar's comment about the water going down to the base of the rollover bars is a concern but ISTR giving that area a good coat of Dinitrol at some point. There are some pop rivets at the top of the B post which might be an entry point but they are under the edge of the top?


1971 SE5, 1977 SE6a, previously 1982 GTC

ard126k
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Leaks into GTC

Post by ard126k » Sun Oct 04, 2020 10:01 pm

The rain stopped and I think I've got it worked out. When I unscrewed the hooks the screws were dry so the water wasn't inside the pillar. What I think happens is - The surface the gutter fixes to is canted inwards so that any water that gets between gutter and body or simply over the edge of the gutter runs inward and falls on top of the T-bar. It runs off both edges of the T-bar and because there's a seam in the vinyl it's directed into the middle where it then goes down onto the hook.
My first experiment in fixing the problem will be some adhesive foam strip to stop any water getting to the T-bar. We shall see on the next rainy day!


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peter freeman
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Leaks into GTC

Post by peter freeman » Mon Oct 05, 2020 8:54 am

Won't be long then



ard126k
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Leaks into GTC

Post by ard126k » Mon Oct 05, 2020 8:39 pm

Need a dry day first to effect the mod!


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peter freeman
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Leaks into GTC

Post by peter freeman » Tue Oct 06, 2020 8:58 am

Could be a long wait then



ard126k
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Leaks into GTC

Post by ard126k » Tue Oct 06, 2020 8:28 pm

In fact it was dry today so I've put some body insulating foam under the edge of the h/t to see if it'll encourage water into the door recess and away from the B pillar. I'm hoping it's the kind of foam that doesn't hold water....


1971 SE5, 1977 SE6a, previously 1982 GTC

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