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canister purge diaphragm
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SGKent Premium Member
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PostPosted: Mon Nov 07, 2022 5:55 pm    Post subject: canister purge diaphragm Reply with quote

There have been numerous threads over the years how to fix a perforated canister purge valve on an FI air cleaner.

While surfing yesterday I came across an aftermarket external purge valve at GOWESTY designed to go inline. The signal hose goes to it instead of the air cleaner, and the purge line goes to it then to the inlet on the air cleaner that can be permanently opened. https://gowesty.com/products/check-valve-for-charcoal-emission-canister-83-91
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busdaddy
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PostPosted: Mon Nov 07, 2022 6:22 pm    Post subject: Re: canister purge diaphragm Reply with quote

Very interesting, looks like a great fix if function is higher on your list than looks, and no worries about loss of vacuum advance.
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PostPosted: Mon Nov 07, 2022 6:39 pm    Post subject: Re: canister purge diaphragm Reply with quote

busdaddy wrote:
Very interesting, looks like a great fix if function is higher on your list than looks, and no worries about loss of vacuum advance.

There are at least two different sized diaphragms on the air cleaner housings so it hardly would benefit a company to make them. They'd sell what, 3 units a year? I think Colin and some others have used Silicone RTV to repair theirs when they perforated. I am thinking that someone who just wants it to work and pass smog if in a smog state then the one at GOWESTY is a quick fix. Unless it is a museum piece, no one will really notice it. It is like the present PCV fix, a couple people flamed me when I suggested they could buy the real mccoy for $35 a piece when they work around was $15. So I bought both and will someday get my money back when someone wants a real mccoy. Most of the long time folks who were restoring buses close to stock are long gone. Mostly the questions these days come from newly started low cost daily driver restorations. The days of buses like this one below being worked on seem gone, or at least not posting. This was probably close to a $100,000 restoration when it was done. He even dunked it rather than media blasted it. It was a down under bus.

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oscarsnapkin
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PostPosted: Tue Nov 08, 2022 4:25 pm    Post subject: Re: canister purge diaphragm Reply with quote

SGKent wrote:
busdaddy wrote:
Very interesting, looks like a great fix if function is higher on your list than looks, and no worries about loss of vacuum advance.

There are at least two different sized diaphragms on the air cleaner housings so it hardly would benefit a company to make them. They'd sell what, 3 units a year? I think Colin and some others have used Silicone RTV to repair theirs when they perforated. I am thinking that someone who just wants it to work and pass smog if in a smog state then the one at GOWESTY is a quick fix. Unless it is a museum piece, no one will really notice it. It is like the present PCV fix, a couple people flamed me when I suggested they could buy the real mccoy for $35 a piece when they work around was $15. So I bought both and will someday get my money back when someone wants a real mccoy. Most of the long time folks who were restoring buses close to stock are long gone. Mostly the questions these days come from newly started low cost daily driver restorations. The days of buses like this one below being worked on seem gone, or at least not posting. This was probably close to a $100,000 restoration when it was done. He even dunked it rather than media blasted it. It was a down under bus.

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


Chrome bumpers? I know Champagne Editions had them here in The States. Were they used more commonly overseas?
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PostPosted: Tue Nov 08, 2022 9:35 pm    Post subject: Re: canister purge diaphragm Reply with quote

Thanks for posting that. I’ll grab one for now, some people actually like when their vacuum advance works AND the garage doesn’t smell like gas. Cool

It looks a lot like the air-cooled Vanagon EEC valve.
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rsbadura
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PostPosted: Wed Nov 09, 2022 1:33 am    Post subject: Re: canister purge diaphragm Reply with quote

oscarsnapkin wrote:
Chrome bumpers? I know Champagne Editions had them here in The States. Were they used more commonly overseas?

Standard in Europe for the luxury versions - like my "Bus L" with lots of extra chrome inside and out.
(not standard at campers, because they are not based on the bus versions - they are based on the much more naked and simple transporters / Kombi)

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pittwagen
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PostPosted: Wed Nov 09, 2022 9:13 am    Post subject: Re: canister purge diaphragm Reply with quote

I believe that purge valve is the same as the one in the CIS Rabbits etc. With that Go Westy part number (049-133-517) the item should be available from several sources.
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PostPosted: Wed Nov 09, 2022 9:22 am    Post subject: Re: canister purge diaphragm Reply with quote

pittwagen wrote:
I believe that purge valve is the same as the one in the CIS Rabbits etc. With that Go Westy part number (049-133-517) the item should be available from several sources.
The GoWesty valve looks the same or very similar to the one on our '84 Vanagon. They show it as up to '91, so I guess that makes sense... Think
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PostPosted: Wed Nov 09, 2022 9:23 am    Post subject: Re: canister purge diaphragm Reply with quote

airschooled wrote:
Thanks for posting that. I’ll grab one for now, some people actually like when their vacuum advance works AND the garage doesn’t smell like gas. Cool

It looks a lot like the air-cooled Vanagon EEC valve.
And now I need to take a hand held vacuum pump to mine to see if the valve even still works.... Embarassed Embarassed
Wink
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metahacker
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PostPosted: Wed Nov 09, 2022 4:17 pm    Post subject: Re: canister purge diaphragm Reply with quote

https://www.buslab.com/product-p/049133517.htm

buslab says it's the WBX charcoal valve (and OE VW is NLA)
also appears to have been on jetta and scirocco and im sure countless others

the GoWesty picture says Brasil

looks like JP Dansk makes it (man, they sure make a TON of old VW parts...)
https://www.aircooledshop.com/category-20/category...anguage=en

i'd probably trust them over brasil
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