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Wed Sep 10, 2008 8:16 pm

I have a 76 van with a 2 liter engine .
I am missing the 2 little cover plates at the bottom of the fan shroud to the heat exchangers.
Does any one know where I might go about finding a pair ?
I posted in the classifieds but the ad gets buried so quick , I do not think I will get a response .
Thanks , Steve

Wed Sep 10, 2008 8:18 pm

I think I saw a pair on GermanSupply $26 each

Wed Sep 10, 2008 8:22 pm

I have one last pair.

Wed Sep 10, 2008 11:24 pm

is this what you want

http://www.thesamba.com/vw/classifieds/detail.php?id=659630

Thu Sep 11, 2008 5:57 am

vw76westy wrote: is this what you want

http://www.thesamba.com/vw/classifieds/detail.php?id=659630

Strange though it might seem, I have a pair of these in my swop box, as illustrated in the advertisement! 8)

Thu Sep 11, 2008 6:18 am

I think he is talking about these. Non return air flap covers.

Thu Sep 11, 2008 7:09 am

buy a set of gaskets too for em and if you can find the aluminum flaps!

part #021119263A & 021119264A

http://www.autoatlanta.net/action.lasso?-database=...mp;-search

These guys have em or try BustedBus.

Thu Sep 11, 2008 7:24 am

Ratwell has a great article on this whole subject.

http://www.ratwell.com/technical/Heating.html

Thu Sep 11, 2008 7:35 am

Make your own per Richard Atwell's info from that link. Easy to do with cork and a utility knife

Thu Sep 11, 2008 7:37 am

Karl, here's yet another tease for you. a few pairs of NOS flaps, some used, left and right, along with the plastic coated pins, some NOS. :wink:

yes, i still have them (although i have used a pair already). no they are not for sale. by the way, the flaps have a thin foam seal on the back side.

Thu Sep 11, 2008 7:44 am

These are the aluminum flaps. I have thought about making these as they have long been NLA.

unless someone knows of a stash of new ones??? :lol:

The little curled arms wear out and fall off eventually. The covers get tossed and/or reistalled without gaskets so the airflow isn't sealed so you lose alot heat because of this.

Thu Sep 11, 2008 10:16 am

1975 Kombi wrote: I think he is talking about these. Non return air flap covers.

Yes those are the ones .
I think Karl is going to fix me up :)
Thanks ,Steve
PS I found one of the flaps in the exchanger while degreasing it .
I will maybe fab up the other .

Thu Sep 11, 2008 10:39 am

parts@bustedbus.com

chris should have some for you

Thu Sep 11, 2008 11:53 am

I was just thinking about what's missing on my bus.

I will try bustedbus too.

I'm trying to understand how these work. From the looks of these, when the heater flaps are closed, air is allowe to escape through these plates which flip open. When the heater flaps are open, maybe the path of least resistance is up through the tube the front.

Is that right?

Mark

Thu Sep 11, 2008 8:14 pm

Bleyseng wrote: These are the aluminum flaps. I have thought about making these as they have long been NLA.

unless someone knows of a stash of new ones??? :lol:

The little curled arms wear out and fall off eventually. The covers get tossed and/or reistalled without gaskets so the airflow isn't sealed so you lose alot heat because of this.

whip618 made his own.

Thu Sep 11, 2008 8:38 pm

how much a set! :lol:

Thu Sep 11, 2008 8:43 pm

I am sending him an email as we speak.

Thu Sep 11, 2008 8:50 pm

markd89 wrote: I was just thinking about what's missing on my bus.

I will try bustedbus too.

I'm trying to understand how these work. From the looks of these, when the heater flaps are closed, air is allowe to escape through these plates which flip open. When the heater flaps are open, maybe the path of least resistance is up through the tube the front.

Is that right?

Mark

In reality, they work IF you have a BA 6 gas heater and the engine is not running. OR you have the upper blower fan on without the engine running which would be really stupid. Especially since the early ones will only run with the alternator output signal. Which means the engine has to be running.....

They keep the air from blowing back out the fan screen.

Like the flaps in the blower fan above the engine. At idle, with the blower fan on, the air pushes the flaps in the upper fan open but when the RPM's come up and the engine fan output exceeds the blower fan output; then the engine fan air closes the blower fan flaps. To keep engine fan air from blowing back out the blower fan.

Back to the lower flaps: The engine fan will always blow them open, even at idle. So unless you have a BA 6 gas heater, you don't really need them.

Thu Sep 11, 2008 9:01 pm

I thought that their purpose was at idle to prevent air from going back into the engine fan. When the booster fan is on the flaps close and the fan then pushes air thru the heat exchangers. I haven't ever checked to see how they worked other than you get more heat air if they are in when the booster fan is on.

Thu Sep 11, 2008 9:09 pm

Karl wrote:
Back to the lower flaps: The engine fan will always blow them open, even at idle. So unless you have a BA 6 gas heater, you don't really need them.

Hi Karl,

Thanks for your post. It's always good to hear from you.

I currently have nothing there. There's a gap of maybe 3/4" inch.

Since I don't have a gas heater, I'm thinking a good solution might be comprised of just sealing up the gap between the heat exchanger and engine. I'd lean towards aluminum from a coke can and some silicone to attach it - not for the purist I know, but should be functional. I'm open to better ideas..

Thanks again,

MArk