74-77 Evaporative Emission parts question

[eche_bus]

Replacing evaporative system hoses on my new '76 Westy and just discovered:

A) German Supply doesn't supply a drawing with their kit, but a link to Ratwell's website.
B) The drawing on Ratwell.com is for '78/79 models. 74-77 is not the same.

This applies only to 74-77 models. Could someone here please provide me with photos or at least a very good description of the evaporative emission parts I've circled in this diagram? I'm missing these parts!

Extra credit for explaining what the heck items 10 and 11 are and where they're supposed to be located/attached.

[busdaddy]

#9 is a short peice of steel or plastic tubing, the circled question mark is rubber hose or steel with a short hose to connect. #10 and #11 are for when the canister is located in a different spot or the Euro 1600 installation (some didn't use a canister and routed the vent directly to the aircleaner).

It doesn't really matter how and what you use to connect it, the 2 small diameter vents coming from each side Tee together and connect to the small nipple on the canister.
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[eche_bus]

Thanks for all the additional info!
It matters to me that I find out what parts were originally used so the can be replaced with same. I'm not just getting it to run.

I would like to know whether the circled part on the right is metal or rubber or what. I understand the theory, but need to know what the missing part looks like.

[busdaddy]

Well then you'd better post the month your bus was built because 76's have a whole grab bag of oddball parts used, if it's close to mine I'll have a look. Could be painted steel, could be unpainted steel, could be braided rubber, could be white nylon, could be yellow nylon.............
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[eche_bus]

Okay, I had no idea that changed so much within the 76 model year. Mine was built February, 1976.

Is there a reference for parts that shows this kind of specific information? I'm experienced correctly restoring late 60s/early 70s era Fords. I have a book originally supplied to dealer parts departments where I can see an exploded diagram, look up a base part number, then use the base number to find a part number/name/description specific to a model, year, and and even date if changed within year. Online I see the VW microfiche drawings like the one i referenced earlier, but don't find the rest of the stuff . What am I missing and where do I find it?

[Westfabulous]

Eche....got your PM, and always happy to help out. Here are some pics from Mrs Westfab's bus. The components that you asked about are as they were when from the factory. There are no alterations here:

The 3 way junction. Coming into it from the passenger side is a metal tube (also circled in the diagram above):

The metal tube coming in from the passenger side is a straight shot to the "hard wired" green tubing:

Connecting the two tubes is a 1.5" piece of grey braided fuel line with clamps:

The connector that you asked about that joins the run to evap canister:

Back tracked to the charcoal canister:

The rubber junction:

The piece that you wanted to know about. It is metal; it is 11/4" long; the outer diameter is about 3/16", and the inner diameter is about 1/8":

Hope this helps.
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[eche_bus]

Westfabulous - your photos showed me *exactly* what is missing from my '76. It appears like a fairly "generic" copper tube that runs to the right from the rubber 'T' over to the short hose section that couples it to the rest. Looks like I'm also missing that metal retaining clip that's pulling out of your top panel (bet those didn't stay put long)- guess I'll be using the tie-wrap meanwhile, too.

Man, Mrs Westfab's bus sure is clean. Gotta figure that wasn't the work of tiny elves working through the night. Nice, nice work!

[Westfabulous]

[Westfabulous]

Eche.....I got your PM, and I decided to post the pictures here in the event that they can be of use to someone else someday. So, here is Mrs Westfab's bus; it looks much dirtier here than it is overall. Specifically, you were looking for info on how the charcoal canister connects to the fan shroud, so, here you go...hope this helps:

No hole here:

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"I will gladly pay you Tuesday for a hamburger today."

[eche_bus]

For the benefit of "the audience":

I'd PM'd Westfabulous asking for photos/clarification on a couple of things. They weren't directly related to this thread's original topic, or I would have posted to this thread.

I'd asked to see where the charcoal canister to fan housing hose connected to the fan housing on a '76 model. The only photo I found during a search was a '77, and I could see it was different from '78/79 so didn't want to assume '76 was the same. I couldn't find a Microfiche drawing showing this detail. It appears on my engine the fitting has been sawn off, and a rubber plug installed. Nice work, previous owner from hell.

I also wanted to figure out why my upper tin just to the rear of the ignition coil had an open hole in it. I've seen the A/C installation instructions and they make mention of drilling a hole in this location, but it has something to do with relocating the "air hose" associated with an "air pump". There's no air pump in '76 so this didn't make any sense. I see that Westfabulous' tin has no such hole, yet has A/C. My compressor was pulled and a tin patch hacked in, so perhaps this upper tin with the hole is from a year that used an air pump? FWIW, the rest of the engine seems consistent with the '76 model year.

Just in case someone here recognizes this hole in the tin, here's the (corroded) detail from my engine. For now, I'll see if I can find a metal (or rubber?) plug somewhere that will fill it. Comments welcome.

[Wildthings]

It shouldn't be a big deal to figure out how to reinstall a nipple in the side of the shroud, or you could get a later right side cylinder tin which has the relocated nipple and use that.

You can just cut a patch from the lid of a tin can and JB Weld it over the hole in your tin. As another alternative for you missing nipple, you could install a nipple right through your new patch.

[eche_bus]

Update:

I've discovered that my sawn-off and plugged fan housing tube and large hole in the top of the tin is the result of standard installation procedure for Fort Worth Texas CCOOL A/C. The tube must stick out too far for the compressor to butt up to the fan housing properly. There's a bunch of different documents out there describing the install and I must have been reading the wrong one before. For now, I'll assume that Mrs. Westfabulous' '76 model must have a different type/model of A/C than mine.

This http://www.thesamba.com/vw/archives/manuals/1976_bus_dpd_under_dash_ac.php points to the install that seems to match what I have.

Here's the step that removes the charcoal canister hose, then cuts off and plugs the metal tube:

Here's the step that drills out the tin, grommets the hole, and relocates the hose connection to the charcoal canister:

Now I just need to find the right size grommet somewhere and I can plug the canister back in!

[Westfabulous]

That is very interesting Eche. I have those install instructions in hardcopy, but haven't looked at them in a while. Both Mrs Westfab and I have Cooool AC units, and as you can see, her fan shroud tube was not cut. I will say that whoever installed hers at the dealership had obviously done a few, as his work was really clean. Perhaps the installer had learned from experience that the alteration was not necessary. There were also a number of installation amendments printed and distributed over the years, and that aspect may have changed at some point. Anyway, that makes life easier for you. Time for a trip to the Home Despot for a look in their bung section.
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"I will gladly pay you Tuesday for a hamburger today."

[Happyfolk]

[busdaddy]

[SGKent]

look at the tin above where #2 is. On 1978 and later engines that connector moved there. It is possible the bus has 1979 tin and a 1976 shroud.
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[Happyfolk]

[busdaddy]