78 Heating duct under bus / Asbestos?

[avoll]

Does the original duct pipes have asbestos in them?
Does The Y wrap thing have asbestos in it?
Does anything on a 78 have asbestos in it?

I'm wanting to replace all the ducts, because I'm in the process of prepping the underside for paint.
The center duct I have that connects front to back is a bendable duct like the others that connect to the Y but bigger. 90mm I believe, but only replacement one I can find is a soid pipe.

Whats the best replacement parts option for replacing all the ducts?
I don't plan on replacing the Y wrap, seems like it traps more moisture than anything. But, if I did whats the best modern option?
Thanks

[avoll]

I attached a couple pictures of the heat ducts.
Anyone know a good place to order the whole set of them?
Thanks

[busdaddy]

Here's a search on the subject: https://www.thesamba.com/vw/forum/search.php?searc..._chars=200
I didn't read them all, but this one was interesting: https://www.thesamba.com/vw/forum/viewtopic.php?t=593400
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[avoll]

[Wildthings]

The bushings for the accordion tubes are the only asbestos I can think of at the moment. You can buy the equivalent part for the aircooled Vanagon, which is made from silicone. I don't know what the insulating material in the heat exchangers is made of or the insulation in the accordion tubes themselves. Remember you are not working in an asbestos mine or processing plant, where the air glitters with asbestos dust 24/7/365.

[aeromech]

I think maybe you’re over reacting on the danger involved.
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Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
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Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
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[avoll]

I probably am being overly cautious. More worried about tracking it inside house around kids more than anything.

I breathed in couple pounds of rust dust over the weekend sanding under there, so thats probably not to great either. Should have plenty of iron for a while though.

Thanks everyone for the information and help.

[aeromech]

If left alone there’s not much floating around. Disturb it and now there’s an issue. Even then, it’s probably nothing to be too concerned about.
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound

[avoll]

Pulling them off and scraping / sanding the metal they were on is for sure going to disturb it. But ILL try to keep them wet, and wipe off whats left on the metal with soapy water rag. Also wear a mask, and mop up gararge when i'm all done.
Any other advice?

[avoll]

Anyone know roughly how many feet of 3 1/2 pipe, and 2 1/4 pipe I need to order to make all the run?

[Jetfxr69]

[my59]

When I took the heating system apart (to remove critter nests, clean, and get rust holes closed up) I wore gloves and a respirator. The asbestos cuffs went into a plastic bag and then the trash can. The wrapping on the Y was unfastened and re used. A section of metal duct was cut to fit for the straight pipe. The other parts that are tack welded were scrubbed out (think wads of rags on coat hanger) and dried with compressed air. Riveted some patches over rust holes, with metal duct tape to seal (yeah, not the best way to go, I know)
Made a major difference for fall and spring driving.
Having a sunroof makes it a greater challenge to try to keep heat in...
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my59: Well son, my grandfather died before I got to drive it, so does that answer your question?
our79: sunroof bus w/camper interior and 2.0 FI
Other:'12 Jetta, '77 Benz 300D, and a 74 MG Midget.

[secretsubmariner]

[alaskadan]

Radial caliper.

[avoll]

Measuring it would work if I was home to do it.
Was hoping to order the stuff and have it waiting when I got home.
Thought maybe someone who's done it already might know the measurements.