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RONIN10
Samba Member
Joined: April 30, 2007
Posts: 594
Location: Seattle, WA
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 Posted: Wed Nov 02, 2011 12:32 pm Post subject: Heater Tube Dimensions |
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Beyond hearsay, there doesn't seem to be a good reference I can find for the dimensions of the large diameter heater tube which runs up the center of the late Bays. I've read 3 1/2 in or 90 mm x 5 ft long, but haven't seen anything cited. Does documentation not exist?
I'm interested in knowing both the internal diameter and length for both sections:
1) between the rear "Y" collector and the forward "Y" distributor.
2) between the forward "Y" distributor and the base of the heat rise to the defrost vents.
If you can help, thanks!
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Andrew
Oscar: 1976 Westfalia Deluxe Camper, 2.0L FI, Manual Transaxle |
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SGKent 
Samba Member
Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
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| Posted: Wed Nov 02, 2011 12:34 pm Post subject: |
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on a late bay they are vinyl tubes while on an early bay they are metal. Better be specfic with what this is for. The most common fix is to find a donor with good tubes.
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
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RONIN10
Samba Member
Joined: April 30, 2007
Posts: 594
Location: Seattle, WA
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| Posted: Wed Nov 02, 2011 12:48 pm Post subject: |
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Okay. Specifically dealing with a 1976 Westy. The existing tubes on mine are the black cardboard/paper type; no vinyl or metal here. From everything I've read, these are original and the same as what others run unless they've modified their heating system.
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Andrew
Oscar: 1976 Westfalia Deluxe Camper, 2.0L FI, Manual Transaxle |
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RONIN10
Samba Member
Joined: April 30, 2007
Posts: 594
Location: Seattle, WA
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| Posted: Wed Nov 02, 2011 1:11 pm Post subject: |
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Here's some photos to be absolutely clear. This is looking forward at the forward "Y" distributor:
This is the other end of the same hose/tube, where it connects to the rear "Y" collector:
And this is from the front looking to the rear having removed both the skid plate and the hose that leads from the forward "Y" distributor to the heat riser for the defrost vents:
Incidentally, in the last photo, the hose on the left which goes from the forward "Y" distributor back to beneath the rear seat, is that just a longer version of the 2 1/8 in. hose used in Beetle engines and, I believe, on the left side of the blower motor in the engine compartment?
Cheers!
_________________
Andrew
Oscar: 1976 Westfalia Deluxe Camper, 2.0L FI, Manual Transaxle |
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