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Old 10-13-2010, 03:47 PM   #1
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what is it/does it do?

OK. not sure so put it here, on my 73 Tradewind I found something I do not know what it is. Curb side, behind (rearward) of the battery door, under the wrap. close to the bumper and frame is a "pipe" maybe 3" dia. it has a piece of wire covering the opening. It is almost flush with the bottom of the wrap. It seems to be in bad shape, some erosion of sorts, metal? wood? The pipe comes down vertically from above. I want to know what it is for/ what it should look like. Ie, how far down bewlow the wrap it should come, why it seems to be eroding? MPK
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Old 10-13-2010, 03:56 PM   #2
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OK. not sure so put it here, on my 73 Tradewind I found something I do not know what it is. Curb side, behind (rearward) of the battery door, under the wrap. close to the bumper and frame is a "pipe" maybe 3" dia. it has a piece of wire covering the opening. It is almost flush with the bottom of the wrap. It seems to be in bad shape, some erosion of sorts, metal? wood? The pipe comes down vertically from above. I want to know what it is for/ what it should look like. Ie, how far down bewlow the wrap it should come, why it seems to be eroding? MPK
That is not anything Airstream installed.

Post a photo or two and maybe someone can better answer your question.

Andy
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Old 10-13-2010, 04:41 PM   #3
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Without a picture, it's kinda hard to guess, but I'll take a stab that it's the heat duct that should connect from a duct on the floor to the black tank box. Maybe the end you can see fell off the black tank box. On our 72, that entire duct was rotted away, as was the metal box around the black tank. Can you run the furnace and feel for hot air coming out of the pipe? If you feel hot air, then it's a heat duct.

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Old 10-13-2010, 05:07 PM   #4
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Thats the doorway for the mice. well...one of them, anyway.

Ok, seriously: its the exhaust port for the bathroom vent fan. Look down next to the toilet, installed into the closet wall, you may find a small exhaust fan. I've seen it referred to as the "fart fan". There was a duct leading from the back of that fan down to the aft corner of that closet.

Since I have the exact same thing on my 73, I'd guess that Airstream did install it.
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Old 10-13-2010, 05:17 PM   #5
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Thats the doorway for the mice. well...one of them, anyway.

Ok, seriously: its the exhaust port for the bathroom vent fan. Look down next to the toilet, installed into the closet wall, you may find a small exhaust fan. I've seen it referred to as the "fart fan". There was a duct leading from the back of that fan down to the aft corner of that closet.

Since I have the exact same thing on my 73, I'd guess that Airstream did install it.

My 73 Overlander has it also,I replaced with 2" pvc. Dave
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Old 12-17-2010, 06:24 PM   #6
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finally here's a pic

now, what, if anything should I do? I am thinking it should extend a bit past the pan/wrap, and get a new cover. MPJ
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