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Heater box drain question
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Leadfoot1000
Posted 2018-09-06 7:22 PM (#569721)
Subject: Heater box drain question



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Location: Southern CA
On the firewall are two oval shaped drain holes to drain the cowl/heater core area. I bought two new oval rubber flaps that are supposed to cover the holes, but I don’t see anyway to attach them. I’m probably missing the attachment parts. Can someone please post a photo of the parts and/or advise where to get them? Thanks,
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mikes2nd
Posted 2018-09-07 1:51 AM (#569739 - in reply to #569721)
Subject: Re: Heater box drain question


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ah grasshopper, you have stumbled upon a question for the wise masters...

http://www.forwardlook.net/forums/forums/thread-view.asp?tid=66044&...
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Leadfoot1000
Posted 2018-09-07 10:16 AM (#569753 - in reply to #569739)
Subject: Re: Heater box drain question



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Location: Southern CA
Thanks for the link. The rubber flaps I purchased have the nubs on them that would pop into the two holes at the top of the oval drain holes, except my car doesn’t have two holes at the top of the oval drain. I think I remember seeing a photo of oval shaped stamped metal “clips” that snap on and provide the two mounting holes. Those clips are likely unobtainable, but if I could find a photo I could put an ad in the Wanted section and possibly find a pair. Otherwise I might try using weatherstrip adhesive to glue in the top and sides of the rubber, leaving the bottom open for drainage.
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Powerflite
Posted 2018-09-07 7:52 PM (#569785 - in reply to #569721)
Subject: Re: Heater box drain question



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The drains with no holes used a rubbery tube that inserted into the hole and clipped on. It wasn't just a flap. Gary Goers is your only hope for those, but I don't know what his business status is now. You might be able to find some good ones from the Eastern half of the country. Here in S. Cal, the originals fall apart if you attempt to touch them.
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Leadfoot1000
Posted 2018-09-09 12:03 PM (#569853 - in reply to #569785)
Subject: Re: Heater box drain question



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Location: Southern CA
Thanks Nathan, Gary sells a slightly larger version of flap for cars like mine with instructions to drill two holes for attachment. I’ll be cutting a pair of flaps out of neoprene and attaching them with weatherstrip adhesive applied to the top and sides as I have no room to dril. Problem solved.
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mikes2nd
Posted 2018-09-09 7:46 PM (#569870 - in reply to #569721)
Subject: Re: Heater box drain question


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the non hole version(57).

The water would sit there until it dries and you can often see rust holes there. It rains... water sits... anything wet goes..it sits there, bad design.

The flaps are there so fumes don't reenter the interior of the car. so you want it to drain but not have open holes to the interior.

I will just make sure the seam seal completely fills the bottom and water must flow out the flap and not sit.
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Leadfoot1000
Posted 2018-09-10 11:37 AM (#569903 - in reply to #569870)
Subject: Re: Heater box drain question



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Hey Mike, I’m not planning to seal/attach at the bottom, only the sides and top. Good idea to fill the bottom channel with sealer a day before installing the rubber flap. This design will drain and seal at least as well as original.
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