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poptop tom
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Joined: July 27, 2004
Posts: 1266
Location: The Hoosier State
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 Posted: Fri Apr 15, 2011 7:13 am Post subject: |
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Some good additional info that may help.
http://www.ratwell.com/technical/Smog.html
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XXX/Rx/RnR
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Joined: March 01, 2008
Posts: 304
Location: valley of the sun
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| Posted: Fri Apr 15, 2011 7:53 am Post subject: |
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Been there. No luck. Need a pic of that rod that has a spring on it and what does it connect to. Looks like vaccum opens the poppet and the spring helps to close it? I'll keep looking. All the pics I've seen, its hidden fron view. Never seen that part before till I viewed SGKents add that had it pictured with the tubing and gaskets. Thanks again...
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78'FI, 2.0, a/t, lift spindles, index rear, 930 cv's & axles, 4-2-1 header, Xtera rack, 6gal. Manchester LP tank, Atwood Hydroflame, 1800 watt invertor, Holt ice maker, custom cooktop, sink, & rear rack. 27x8.5x14's on stock rims. Solar panel 2amp/hr. hard line to 2 blue tops for aux. power. Red top for engine. 70 amp. alt. |
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busdaddy
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Joined: February 12, 2004
Posts: 23879
Location: Surrey B.C. Canada, Land of the giant flying moose!
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| Posted: Fri Apr 15, 2011 8:18 am Post subject: |
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Don't forget the Samba gallery 
The 78 valve isn't vacuum controlled, it's all mechanical.
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SGKent
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Joined: October 30, 2007
Posts: 17543
Location: State Capitol CA (Sacramento)
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| Posted: Fri Apr 15, 2011 8:44 am Post subject: |
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see BusDaddy's picture for the Plenum.
I would pull your valve and replace it with new gaskets and the valve I sent. I know the valve I sent is good and there is a chance yours is bad and that is why it is capped off. When you pull the screws, just pull the two holding the valve to the plenum - when it comes off you can use a pocket knife or putty knife to pop off the old gaskets. I put each new gasket in a seperate plastic baggie and wrote where each one goes.
Here is a photo of the parts book on how it is assembled. The rectangular flange on the tube goes on top of the valve.
If you can push a piece of flexible wire, old bicycle brake line or a thin wire tie into the plenum tube hole 4 or 5 inches it is open. If it is plugged the wire will stop after about 1/2". I found that the easiest way to unplug them was to soak carb cleaner in the hole for three or four hours, dig out the goop when it softened like toothpaste and do it again and again until I could see it was fully open. I took the plenum off to do this so it is a good time to replace any bad rubber boots. I also sent you a cork gasket - that is for the Cold Start Valve if you remove that off the plenum. You can try to pass smog with it plugged if you are willing to get the fail if they catch it which they may or may not. As you can see, all they have to do to test it is move the lever and they will know if it works and that is how shops normally test an egr on any car.
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Steve aka Merlin the Wrench
formerly Steve's Racing and Engine Blueprinting. Wrenching since 1967.
bdamico on GF wrote | Quote: | | "When I was your age I'd plan out all sorts of stuff for the future and almost none of them came true. Just wonder if it's worth trying to be a crystal ball. " |
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XXX/Rx/RnR
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Joined: March 01, 2008
Posts: 304
Location: valley of the sun
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| Posted: Fri Apr 15, 2011 12:25 pm Post subject: |
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SG, I'm not the one you sent the parts to. I read the post and want to get mine ready for emmissions if they tough in Az. If you have parts, I'm interested in them. P.M. if you do. Thanks for the great pics BD & SG. I need the rod that connects the linkage together and the gaskets and tube. I can see how it works now.
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78'FI, 2.0, a/t, lift spindles, index rear, 930 cv's & axles, 4-2-1 header, Xtera rack, 6gal. Manchester LP tank, Atwood Hydroflame, 1800 watt invertor, Holt ice maker, custom cooktop, sink, & rear rack. 27x8.5x14's on stock rims. Solar panel 2amp/hr. hard line to 2 blue tops for aux. power. Red top for engine. 70 amp. alt. |
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SGKent
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Joined: October 30, 2007
Posts: 17543
Location: State Capitol CA (Sacramento)
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| Posted: Fri Apr 15, 2011 7:11 pm Post subject: |
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| XXX/Rx/RnR wrote: | | SG, I'm not the one you sent the parts to. I read the post and want to get mine ready for emmissions if they tough in Az. If you have parts, I'm interested in them. P.M. if you do. Thanks for the great pics BD & SG. I need the rod that connects the linkage together and the gaskets and tube. I can see how it works now. |
I am too low on gaskets to send anymore out. You will need to resuse the old ones with some high temp silicone. The tube you can probably get from Raul VW76Westy or in classifieds. If I can answer any questions ask. I don't know if AZ requires a functional test or not. California does.
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Steve aka Merlin the Wrench
formerly Steve's Racing and Engine Blueprinting. Wrenching since 1967.
bdamico on GF wrote | Quote: | | "When I was your age I'd plan out all sorts of stuff for the future and almost none of them came true. Just wonder if it's worth trying to be a crystal ball. " |
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SGKent
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Joined: October 30, 2007
Posts: 17543
Location: State Capitol CA (Sacramento)
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| Posted: Sat Apr 16, 2011 8:38 am Post subject: |
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When I do have EGR extra gaskets they sell $45 a set shipped. I can have more made if enough people need them. There are 5 EGR gaskets of which one has a metering orifice and 1 cork CSV gasket for a total of 6 gaskets.
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Steve aka Merlin the Wrench
formerly Steve's Racing and Engine Blueprinting. Wrenching since 1967.
bdamico on GF wrote | Quote: | | "When I was your age I'd plan out all sorts of stuff for the future and almost none of them came true. Just wonder if it's worth trying to be a crystal ball. " |
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furthur78
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Joined: February 18, 2010
Posts: 11
Location: San Francisco, CA
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| Posted: Wed Jun 01, 2011 6:27 pm Post subject: |
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yeah so thanks SG Kent and the rest of ya for the help - under a 100 bucks for the whole EGR assembly, i owe you one - I got a hand by Gary down at Sonoma VW in Glen Ellen, CA and with their fine tuning our bus passed cal smog. he said it wasn't easy though and recommended a catalytic converter for the next go around - i don't know, we'll see - i'm just thrilled to have the bus on the road for the summer - i really thought I was screwed. thanks again all
say hi if you see us around the bay areas <p>
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furthur78
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Joined: February 18, 2010
Posts: 11
Location: San Francisco, CA
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| Posted: Wed Jun 01, 2011 6:31 pm Post subject: |
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| SGKent wrote: | see BusDaddy's picture for the Plenum.
If you can push a piece of flexible wire, old bicycle brake line or a thin wire tie into the plenum tube hole 4 or 5 inches it is open. If it is plugged the wire will stop after about 1/2". I found that the easiest way to unplug them was to soak carb cleaner in the hole for three or four hours, dig out the goop when it softened like toothpaste and do it again and again until I could see it was fully open. I took the plenum off to do this so it is a good time to replace any bad rubber boots. I also sent you a cork gasket - that is for the Cold Start Valve if you remove that off the plenum. You can try to pass smog with it plugged if you are willing to get the fail if they catch it which they may or may not. As you can see, all they have to do to test it is move the lever and they will know if it works and that is how shops normally test an egr on any car.
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yeah you were right about that - Gary cleaned the plenum tube and got the EGR valve going... but all the baggy labeling and everything helped me install the whole kit with no problems, appreciate all that - thanks again |
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SGKent
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Joined: October 30, 2007
Posts: 17543
Location: State Capitol CA (Sacramento)
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| Posted: Wed Jun 01, 2011 9:30 pm Post subject: |
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really glad it past smog. That should be a relief off your mind - I know it was for me when mine finally did. If you have to buy a convertor next year you can get one direct from EMICO in Canada at a reasonable price that is CARB II certified. Scan and PM me your final smog results and I will interpret them.
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Steve aka Merlin the Wrench
formerly Steve's Racing and Engine Blueprinting. Wrenching since 1967.
bdamico on GF wrote | Quote: | | "When I was your age I'd plan out all sorts of stuff for the future and almost none of them came true. Just wonder if it's worth trying to be a crystal ball. " |
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BUSBOSS
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Joined: January 21, 2009
Posts: 1195
Location: Northern California
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| Posted: Wed Jun 01, 2011 11:43 pm Post subject: |
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| furthur78 wrote: | he said it wasn't easy though and recommended a catalytic converter for the next go around
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Did you pass with no cat?
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dfolstrom
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Joined: June 30, 2011
Posts: 4
Location: Palm Desert Ca
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| Posted: Thu Jun 30, 2011 4:16 pm Post subject: |
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| Great thread I wish I would have researched this much earlier anyway now I am one of those SGKent says "is on our own" I need a replacement EGR valve for my 77 diaphram is shot. If anyone has a lead on one, please let me know. Thanks. |
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furthur78
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Joined: February 18, 2010
Posts: 11
Location: San Francisco, CA
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| Posted: Thu Aug 18, 2011 4:34 pm Post subject: |
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| BUSBOSS wrote: |
Did you pass with no cat? |
yes - I had to add a EGR valve to get past the visual inspection, but it was a non-CA model so the cat wasn't required... passing smog without it was tough... he recommended adding one before the next smog test in 2 years... although i hear it is illegal to do that? bizarre. |
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curtis4085
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Joined: July 22, 2011
Posts: 2977
Location: Colorado
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| Posted: Mon Aug 29, 2011 7:28 pm Post subject: |
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| anybody have luck taking a 78 Egr filter and modifing it to fit a 79 engine? i am at wits end to get the proper 79 egr filter and egr tube/pipe. Not sure if the egr pipe for the 79 is the skiiny one or the regular one? I live in COlorado and just want stock system. What is a guy to do? |
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vw76westy
Samba Member
Joined: May 06, 2007
Posts: 1480
Location: so cal
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| Posted: Mon Aug 29, 2011 9:21 pm Post subject: |
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| Quote: | | Not sure if the egr pipe for the 79 is the skiiny one or the regular one |
pics or did not happen
i have seen different shapes for the pipe that connects
the egr filter to the valve
& i have seen filters with the pipe connection in every possible spot
threwout the filter
but the filter & the size of the pipe has always been the same
on the other hand being from CA most of the 79's i find are
CA-79's with a oxygen sensor,etc
& i have never seen fed 79 with a complete & correct egr system
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johnlynch47
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Joined: July 17, 2008
Posts: 265
Location: Bradenton, Fl
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| Posted: Sat Apr 28, 2012 11:16 am Post subject: |
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Very confused, I did a bunch of work on my 2.0 FI and as I was putting everything back I noticed the EGR was frozen, Do I need to replace or can I just block off the hole? or can I somehow clean the one I have?
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curtis4085
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Joined: July 22, 2011
Posts: 2977
Location: Colorado
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| Posted: Sat Apr 28, 2012 11:49 am Post subject: |
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| johnlynch47 wrote: | | Very confused, I did a bunch of work on my 2.0 FI and as I was putting everything back I noticed the EGR was frozen, Do I need to replace or can I just block off the hole? or can I somehow clean the one I have? |
Are you talking about the EGR valve or filter? The filter if solid you can clean out with carb cleaner, compressed air and lots of shaking and banging on it to Get the chuncks of carbon out.
The Egr valve you can buy em used in classifieds or get a rebuilt one from interstate, they are pricey rebuilt but available in classifieds as well
As for the EgR pipe being different size, I found that the I.D. Is same and both sizes will fit. It's the O.D that's different that threw me off.
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johnlynch47
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Joined: July 17, 2008
Posts: 265
Location: Bradenton, Fl
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| Posted: Sat Apr 28, 2012 11:56 am Post subject: |
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#28 in the diagram above from Kent. So I need that valve to work properly for the bus to run well? Or can I block it off?
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"My shovel is sharp, my pick is sharp, and my will is outstanding." - Rod Marinelli
"I've got a good heart, but this heart can get ugly" Rapper DMX
"Bring your face over here so I can smack it" My Mom
1977 Sage Green Westy up in this!
her name is Velma
1994 Chevy Silverado - Mater
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Westfabulous
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Joined: January 07, 2007
Posts: 4083
Location: The tropic of Canada, dodging the giant flying moose of Surrey!
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| Posted: Sat Apr 28, 2012 12:04 pm Post subject: |
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You can most certainly block it off. I did. Others will tell you not to. You can make your own block off plate, or German Supply sells a kit. I am in favor of blocking it off if your smog laws don't require it, but then again, I couldn't hook mine up if I wanted to, as I stil need a '79 only EGR filter.
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