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mcdonaldneal
Samba Member
Joined: June 13, 2013
Posts: 2734
Location: Gullane, Scotland
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CiderGuy
Samba Member
Joined: December 23, 2013
Posts: 1351
Location: Bucks County, Pa
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 Posted: Mon Feb 23, 2015 2:13 am Post subject: |
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| mcdonaldneal wrote: |
Just laughing, reading this thread!
I agree with the general sentiment that this job is one of the fiddlyest there is!
I used MTB inner tube, but it's really too thin. I spent ages sourcing some silicone tubing, but the stuff they sent was really too thick. Wouldn't roll back on itself!
I'm going to wait until it breaks again before I contemplate taking it apart again! |
Maybe use heat or hot water? Its how a lot of fittings get placed in hoses.
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Cars Currently Owned:
1970 Karmann Ghia Coupe
1973 Karmann Ghia Coupe - Project car for sale
1970 Karmann Ghia Convertible (Body off restoration)
Timing is everything |
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kiwighia68
Samba Member
Joined: October 20, 2013
Posts: 2948
Location: Auckland, New Zealand
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| Posted: Mon Feb 23, 2015 10:37 am Post subject: |
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| mcdonaldneal wrote: |
| Just laughing, reading this thread! |
I second that, although the joke is on the installer (moi!). I had my fresh/warm air diffusers in my hand yesterday for a trial fit and gave up when my hands and wrists were covered in small cuts and bruises. What's worse is that I don't have the connecting metal parts - the metal part that fits onto the fresh air vent boxes. Now where the heck do I find those? I can't find them in anyone's parts list.
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Festina lente - hasten slowly
1968 Ghia named Emiko
Resto completed Dec 2015 |
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xzener
Samba Member
Joined: June 03, 2006
Posts: 1778
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| Posted: Sat May 06, 2017 8:08 pm Post subject: Re: Fresh/warm air mixer installation |
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Sorry to strum up an old thread. I am going to attempt shrink tubing instead of inner tube. I am certain it will be an easy install, and last much longer than rubber.
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My 70 beetle was totaled Now to build the Ghia I always wanted. Rest in peace Ruby, I will miss you. Hello <insert Ghia name here>! |
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mcdonaldneal
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Joined: June 13, 2013
Posts: 2734
Location: Gullane, Scotland
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xzener
Samba Member
Joined: June 03, 2006
Posts: 1778
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| Posted: Sun May 07, 2017 9:28 am Post subject: Re: Fresh/warm air mixer installation |
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I will post some pics this week when the tubing arrives... Have some on order. Yours turned out nice. My wire harness has been pulled out, so plenty of room to struggle with it. 
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My 70 beetle was totaled Now to build the Ghia I always wanted. Rest in peace Ruby, I will miss you. Hello <insert Ghia name here>! |
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xzener
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Joined: June 03, 2006
Posts: 1778
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| Posted: Fri Jun 09, 2017 11:32 am Post subject: Re: Fresh/warm air mixer installation |
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Only used a hair drier for the shrink tubing... But so far so good.
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My 70 beetle was totaled Now to build the Ghia I always wanted. Rest in peace Ruby, I will miss you. Hello <insert Ghia name here>! |
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PolarBearVW
Samba Member
Joined: June 26, 2013
Posts: 316
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| Posted: Fri Jun 30, 2017 7:00 am Post subject: Re: Fresh/warm air mixer installation |
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I like the shrink tube idea. I have a silly question about the other end of the tube. My 74 coupe has no connector between the floor channel and the underside of the dash. Am I correct that the transfer of hot air is to flow from the floor hole behind the carpet to the dash?
If that is true, then to the earlier question about efficiency, perhaps rigging up a tube there would ensure more hot air makes it up there without losses.
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1974 Ghia Coupe |
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xzener
Samba Member
Joined: June 03, 2006
Posts: 1778
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| Posted: Fri Jun 30, 2017 8:55 am Post subject: Re: Fresh/warm air mixer installation |
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Yes, heat comes from below, fresh air from the front. Not sure about a 74, but my 68's heat comes up through the dash from a tube attached to the heat channel.
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My 70 beetle was totaled Now to build the Ghia I always wanted. Rest in peace Ruby, I will miss you. Hello <insert Ghia name here>! |
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c21darrel
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Joined: January 22, 2009
Posts: 8242
Location: San Dimas
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xzener
Samba Member
Joined: June 03, 2006
Posts: 1778
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| Posted: Fri Jun 30, 2017 12:53 pm Post subject: Re: Fresh/warm air mixer installation |
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Which made them impossible to replace in my 70 beetle. Mr Ghia got it right with the solid tube IMO.
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My 70 beetle was totaled Now to build the Ghia I always wanted. Rest in peace Ruby, I will miss you. Hello <insert Ghia name here>! |
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kiwighia68
Samba Member
Joined: October 20, 2013
Posts: 2948
Location: Auckland, New Zealand
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| Posted: Fri Jun 30, 2017 1:21 pm Post subject: Re: Fresh/warm air mixer installation |
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| xzener wrote: |
| ... Mr Ghia got it right with the solid tube IMO. |
Sounds more like Herr Karmann to me.
_________________
Festina lente - hasten slowly
1968 Ghia named Emiko
Resto completed Dec 2015 |
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metoooo
Samba Member
Joined: October 03, 2007
Posts: 381
Location: ISRAEL
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| Posted: Sun Jul 09, 2017 1:12 am Post subject: Re: Fresh/warm air mixer installation |
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| Anyone know a source for the rubber flaps? I'm currently striping those mix box and preper them for powder coating and I've found that those flaps are turn |
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Mellow Yellow 74
Samba Member
Joined: October 14, 2014
Posts: 1615
Location: Sydney, Australia
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| Posted: Sun Jul 09, 2017 4:50 am Post subject: Re: Fresh/warm air mixer installation |
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I would be surprised if you could get these anywhere - 3D printing would be your best best (the rubber is fairly hard so plastic should be ok).
_________________
1962 Karmann Ghia
1974 Deluxe Microbus
1985 Caravelle (Vanagon) |
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kiwighia68
Samba Member
Joined: October 20, 2013
Posts: 2948
Location: Auckland, New Zealand
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| Posted: Sun Jul 09, 2017 10:31 am Post subject: Re: Fresh/warm air mixer installation |
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| Mellow Yellow 74 wrote: |
| I would be surprised if you could get these anywhere - 3D printing would be your best best (the rubber is fairly hard so plastic should be ok). |
Good point. Some parts can be made from things you can buy elsewhere, for example, in a stationery store. I made a green indicator piece to fit in my Ghia's speedo from a plastic pencil sharpener. $2 fix.
Crafts stores have all sorts of materials that can be used.
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Festina lente - hasten slowly
1968 Ghia named Emiko
Resto completed Dec 2015 |
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rr70rrde
Samba Member
Joined: October 12, 2015
Posts: 7
Location: Germany
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| Posted: Sun Oct 05, 2025 11:54 am Post subject: Re: Fresh/warm air mixer installation |
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Thanks for the tip! With 2mm thick hoses, you can get the job done in a few minutes. Mine are red. If anyone needs a piece, feel free to let me know.
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VW Karmann Ghia Coupe 1963 |
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Leonard Hooks
Samba Member
Joined: March 03, 2025
Posts: 29
Location: Waco, TX
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| Posted: Mon Oct 06, 2025 2:22 pm Post subject: Re: Fresh/warm air mixer installation |
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I found some thick 1" black electrical take at Lowes. (thicker than regular electrical tape and very high adhesive. It worked perfect to wrap the joints after putting them back in place. The worst thing to me was getting the cable secured.
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Ghia again...after 48 years
1970 Karmann Ghia, Irish Green
1965 Mustang
Owned a 1971 Ghia, Irish Green from 71-77
Owned a 1982 Porsche 924 |
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