Vent in the engine deck, stock??

cmonSTART · Posted: Thu Mar 05, 2015 1:37 pm Post subject: Vent in the engine deck, stock??

Hi Folks,

Is this round vent in the engine deck stock, or something a PO added? It's in the rear left corner, behind the spare tire well.

Image may have been reduced in size. Click image to view fullscreen.

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'78 Bus 2.0FI
de K1IGS

Bleyseng · Posted: Thu Mar 05, 2015 1:43 pm Post subject:

What's in the engine compartment a gas heater?
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70 Ghia Black convert-9/69 build date-stock w/133k 1600 SP-barn find now with a rebuilt tranny and engine
77 Westy 2.0L w/Ljet, Camper Special engine-95hp and with LSD!(sold)
76 Porsche 914 2.1L L20c, 120hp Djet (sold)
87 Syncro Westy Titan Red 2.1L 2 knob 100k miles

cmonSTART · Posted: Thu Mar 05, 2015 1:51 pm Post subject:

No, it has a BA6 under the belly, but the only thing in the engine compartment is the engine itself..

Actually, the entire stock heat system is missing.

The rear defroster is INOP, so I was thinking this might be an attempt to defog the rear window.
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'78 Bus 2.0FI
de K1IGS

Bleyseng · Posted: Thu Mar 05, 2015 2:22 pm Post subject:

Just a weird hack then. Try to source all the stock pieces for the stock heating system as it does work pretty well when complete. Especially hooked upto a BN6 gas heater!
_________________
70 Ghia Black convert-9/69 build date-stock w/133k 1600 SP-barn find now with a rebuilt tranny and engine
77 Westy 2.0L w/Ljet, Camper Special engine-95hp and with LSD!(sold)
76 Porsche 914 2.1L L20c, 120hp Djet (sold)
87 Syncro Westy Titan Red 2.1L 2 knob 100k miles

kreemoweet · Posted: Thu Mar 05, 2015 2:48 pm Post subject:

I'll bet it was an intake for a recirculating heat system that was installed at one time.
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'67 bug: seized by the authorities
'68 bug: seized by the authorities
'71 kombi: not yet seized by the authorities

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1967250s · Samba Member Joined: May 02, 2007 Posts: 2137

Yeah, bet it hooked to a tube going to the heater fan. Not a bad idea really. Just have to make sure the rest of the system doesn't suck in any other fumes.
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'72 Elm Green Deluxe

PITApan · Posted: Thu Mar 05, 2015 3:06 pm Post subject:

cmonSTART · Posted: Thu Mar 05, 2015 4:19 pm Post subject:

Great, thanks guys. I'm going to close it off for now.

I'm using the BA6 (refurbished) as a stand-alone heat system. It's surprising how much heat it actually cranks out, but it would do better with a bigger distribution fan. I also have to close off air leaks around the cabin - I feel a cold draft coming from the back of the bus while at speed. Toasty warm around the town, though!
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'78 Bus 2.0FI
de K1IGS

Bleyseng · Posted: Thu Mar 05, 2015 6:15 pm Post subject:

The stock BN6 air inlet is behind the rear seat. Isn't that where yours is?
_________________
70 Ghia Black convert-9/69 build date-stock w/133k 1600 SP-barn find now with a rebuilt tranny and engine
77 Westy 2.0L w/Ljet, Camper Special engine-95hp and with LSD!(sold)
76 Porsche 914 2.1L L20c, 120hp Djet (sold)
87 Syncro Westy Titan Red 2.1L 2 knob 100k miles

cmonSTART · Posted: Thu Mar 05, 2015 6:35 pm Post subject:

Yup, passenger side.
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'78 Bus 2.0FI
de K1IGS

busdaddy · Posted: Thu Mar 05, 2015 6:52 pm Post subject:

Bleyseng · Posted: Thu Mar 05, 2015 7:05 pm Post subject:

Here is a pic of the stock fresh air intake. Only the green part is inside the cabin.

_________________
70 Ghia Black convert-9/69 build date-stock w/133k 1600 SP-barn find now with a rebuilt tranny and engine
77 Westy 2.0L w/Ljet, Camper Special engine-95hp and with LSD!(sold)
76 Porsche 914 2.1L L20c, 120hp Djet (sold)
87 Syncro Westy Titan Red 2.1L 2 knob 100k miles

cmonSTART · Posted: Sat Mar 07, 2015 9:46 am Post subject:

Update: I removed the vent today and sure enough, there was a remnant of a PVC flex duct attached to it. It probably was a heat recirculating system like you said. I added some duct tape to the equation to cover it and took a test ride - very very much better! I would say it cut down on the icy breeze about 75%. The bus is much warmer now - even on a single digit morning.

Thanks folks!
_________________
'78 Bus 2.0FI
de K1IGS

Tcash · Posted: Sat Mar 07, 2015 12:39 pm Post subject:

Did you happen to take a picture of it when it was out?
Thanks
Tcash

PITApan · Posted: Sat Mar 07, 2015 1:32 pm Post subject:

in your first pic, it seems to have a cover plate on it. So the draft was coming through this?

cmonSTART · Posted: Sat Mar 07, 2015 2:25 pm Post subject:

There's no cover on it.. it's just an open, screened hole.

I didn't take any photos while it was out, but if you think it's worthwhile I don't mind doing so.
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'78 Bus 2.0FI
de K1IGS

PITApan · Posted: Sat Mar 07, 2015 2:39 pm Post subject:

ah so. Screened.


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