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fusername Samba Member
Joined: March 15, 2006 Posts: 2897 Location: Boston MA
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Posted: Mon Jun 01, 2009 8:23 am Post subject: |
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when in doubt, I use simple green. I never know what seals and such are actually made of, and solvents tend to disolve everything i don't want them to.
also, is anyone familiar with the PCV setup for a1700 smog pump engine? _________________ [email protected]
Need something custom bent up? shoot me an email, maybe we can make it work!
FORSALE: Thrust cut T4 and 1.9 main bearings
obnoxiousblue wrote: |
Maybe Ben Pon's ghost comes and vomits NOS stampings for your bus, but not mine! |
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SGKent Samba Member
Joined: October 30, 2007 Posts: 41031 Location: Citrus Heights CA (Near Sacramento)
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Posted: Tue Jun 02, 2009 8:52 am Post subject: |
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I have found a place in California that can make these diaphrams for the 1975 - 1978 FI bus. Don't have a price yet but the mold guesstimate is reasonable and the diaphram is too. Probably will be like the original in silicone rubber. The question will be how many of these to make. They will probably be under $10 each shipped for the diaphram and will come with instructions how to get the PCV valve apart and how to clean and replace. Please send me a PM is you want to be on the list of people who buy them. I am guessing there are about 150 of us who need them but if we don't get that many who need them could be as much as $25 each (based on 50 made and sold) _________________ “Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
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raygreenwood Samba Member
Joined: November 24, 2008 Posts: 21520 Location: Oklahoma City
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Posted: Tue Jun 02, 2009 11:29 am Post subject: |
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Yep, it sounds like thye are making a temporray mold like I make for doing small parts. Very fine detail.....and could make a few hundred to maybe a thousand vacuum cast parts before it craps out.
I would volunteer to mold these.....but I have lot on my plate right now. If not enough people step up...I can do it.
Bear in mind...that silicone casting compounds have come light years since these diaphrams have been made originally. You canget newere silicones that have 600+ heat rangew and are almost totally checmical proof. The real question will be what hardness and level of flexibility will work. Ray |
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raygreenwood Samba Member
Joined: November 24, 2008 Posts: 21520 Location: Oklahoma City
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Posted: Tue Jun 02, 2009 11:37 am Post subject: |
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fusername wrote: |
when in doubt, I use simple green. I never know what seals and such are actually made of, and solvents tend to disolve everything i don't want them to.
also, is anyone familiar with the PCV setup for a1700 smog pump engine? |
Uh...just so you know....Simple Green...aint that simple and it aint that green. Its a decent degreaser....but its main two ingredients are 2-butoxyethanol and Butyl Cellosolve. You should not breath either and highly limit contact with skin. Also....personally I would be very careful with using it on rubber and plastics. Ray |
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Vwman55 Samba Member
Joined: August 11, 2005 Posts: 550 Location: Valparaiso, IN
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Posted: Tue Jun 02, 2009 12:01 pm Post subject: |
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I suppose a sample would be make and tested for QC purposes? |
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evanwilliams4u Samba Member
Joined: December 16, 2008 Posts: 88 Location: California
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Posted: Wed Jun 03, 2009 12:08 pm Post subject: |
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Is there an easy way to test the breather valve without disassembling it or having a vacuum tester? Every time I remove my S-boot there is a decent amount of oil in the bottom of it, and I'm pretty sure it's coming from the breather tube--is this a sign that the diaphram is bad?
Thanks for doing all this legwork SGKent. _________________ 1978 Stock Westfalia Deluxe |
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Bleyseng Samba Member
Joined: July 03, 2005 Posts: 4752 Location: Seattle
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Posted: Wed Jun 03, 2009 5:43 pm Post subject: |
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evanwilliams4u wrote: |
Is there an easy way to test the breather valve without disassembling it or having a vacuum tester? Every time I remove my S-boot there is a decent amount of oil in the bottom of it, and I'm pretty sure it's coming from the breather tube--is this a sign that the diaphram is bad?
Thanks for doing all this legwork SGKent. |
no, could be your rings are worn so you have lots of blowby..which includes lots of misty oily gas which condenses in the S boot.
do a leak down test to see what going on.. _________________ 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 |
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reluctantartist Samba Member
Joined: August 13, 2006 Posts: 1927 Location: Bloomington, IN
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Posted: Wed Jun 10, 2009 12:21 pm Post subject: |
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You can take it off and use a piece of hose that attaches to the end that goes to the air intake. Plug the other end with your finger and suck on it to see if it holds vacuum. I also blow a little pressure the other way too,but not much and it should hold pressure as well. Sometimes the diaphragm has a crack that is more susceptible to opening when bending the other way. I disassembled mine and made a spring clip that holds it together. Now I can take it apart for maintenance. It was actually full of gunk on the inside so the flow through it was restricted as well. I put it back together with some RTV (repaired the diaphragm too) and then put a spring clip on to keep it hel together. It works like a new one now....now to see if my MPG improves as well.
_________________ 1982 Westy, 1974 412 Variant... Yes, Aircooled's are great! Oh and I do have modern computer controlled vehicles too, but I just don't care about them. |
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busdaddy Samba Member
Joined: February 12, 2004 Posts: 51153 Location: Surrey B.C. Canada, but thinking of Ukraine
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Posted: Wed Jun 10, 2009 3:34 pm Post subject: |
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I was doing some work on a 78 Datsun 280Z yesterday and noticed that it uses a flow through PCV valve system (280's use L-jet in case you are wondering), I'm hoping to get my hands on the valve that screws into the plenum that the breather connects to and whatever is in the line from the rocker cover to the S boot they call a "flame arrestor" soon for some research. _________________ Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
Слава Україні! |
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webwalker Samba Member
Joined: January 26, 2006 Posts: 2803 Location: Mount Laurel, NJ
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Posted: Sat Jul 10, 2010 6:30 pm Post subject: |
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Back from the dead!
Was any final resolution made on this?
I was actually searching for the I.D. of the Sboot when I stumbled on to this thread.
It seems that there are an increasing number of NLA parts that are going to drive the FI Bus right out of smog states. In NJ, everything gets smogged, with no cut off date. I don't know about the visual inspection, however. (My 72 SB is registered historic, the only way you get off the emissions merry-go-round.)
M _________________ "Consistent maintenance with quality products is the cheapest warranty you'll ever need."
1977 CE1 Transporter Deluxe, Subaru EJ22, Skills Cooling, Steedle HD 091 w/ GuardT .82 4th
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jtauxe Samba Member
Joined: September 30, 2004 Posts: 5780 Location: Los Alamos, New Mexico
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Posted: Mon Jul 12, 2010 6:08 am Post subject: |
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This thread has opened my eyes to a whole new part of the engine to worry about!
Now, how does one go about properly testing the PCV valve? And what maintenance can be done without dismantling and damaging it? _________________ John
"Travelling in a fried-out Kombi, on a hippie trail, head full of zombie..." - Colin Hay and Ron Strykert
http://vw.tauxe.net
1969 Transporter, 1971 Westfalia, 1976, 1977, 1976, 1977, 1971, 1973, 1977 Westfalias,
1979 Champagne Sunroof, 1974 Westfalia Automatic, 1979 Transporter, 1972 Sportsmobile, 1973 Transporter Wild Westerner, 1974 Westfalia parts bus, 1975 Mexican single cab *FOR SALE*, 1978 Irish 4-door double cab RHD
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thewalrus Big Jack
Joined: March 27, 2006 Posts: 3014 Location: Belchertown, MA
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Posted: Tue Jul 13, 2010 9:39 am Post subject: |
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Wow. Tripped over this in a search and didn't realize that little bugger was made of unobtanium. My engine was or originally a 2.0L F.I. and I HAD one but had no clue what it did other then help vent the crank case somehow. When I got the bus it had been converted to single carb and there was a hose coming off the plastic piece and just running over to the spare battery tray. (Don't yell at me here... I was new!!) When I got a new Weber single carb I hooked it up to the back of the air cleaner and assumed it was working.
So a few months ago I pulled the engine and once it was safely on the ground I pushed the bus over it and the lip/head of the plastic thing got caught under the bumper and SNAP! It didn't phase me at the time and I just assumed I could get another one... and did up until 10 minutes ago. Woops.
Last weekend I was picking pieces off a '74 1800 duel carb and remembered I needed this piece but mine being originally a Fuel Injected and the 1800 being carbed obviously it wasn't there. So I took the metal vent box off and just assumed I could swap that on. Now that I'm putting on duel carbs... WHERE is this hose really supposed to go?
Here's a pic I took of the 1800 engine before I took the vent box off. The hose is missing though: (Upper right hand corner)
_________________ '73 Transporter 1.7L Dual Carb
notchboy wrote: |
You ran over some #Vanlife'ers hopes and dreams? |
60vwnewengland wrote: |
Looking forward to next weekend, weed, krunk juice, hookers, blow, hanging with bums, philly, ...the awards! |
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busdaddy Samba Member
Joined: February 12, 2004 Posts: 51153 Location: Surrey B.C. Canada, but thinking of Ukraine
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Posted: Tue Jul 13, 2010 11:25 am Post subject: |
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thewalrus wrote: |
WHERE is this hose really supposed to go? |
To the nipple on the air filter neck (hose goes under and around the front). _________________ Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
Слава Україні! |
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BUGSTUFF Samba Member
Joined: October 20, 2004 Posts: 526 Location: Bartlett, IL
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Posted: Sun Jul 25, 2010 9:48 pm Post subject: |
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If you have dual carbs and no factory airbox, where shoud the hose from the crankcase breather go? Should it be connected to anything or just vented out underneath the engine somewhere? _________________ Kirk
Northeast IL VW Association - www.nivaclub.org
www.facebook.com/nivaclub
Volkswagen Club of America - www.vwclub.org |
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BUGSTUFF Samba Member
Joined: October 20, 2004 Posts: 526 Location: Bartlett, IL
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SGKent Samba Member
Joined: October 30, 2007 Posts: 41031 Location: Citrus Heights CA (Near Sacramento)
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Posted: Sat Jan 22, 2011 11:35 pm Post subject: |
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Bobbie found me 2 NOS last last year but nothing on the diaphragms. Don't have the money to make new ones. _________________ “Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
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jimeg Samba Member
Joined: May 14, 2007 Posts: 510 Location: PNW
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Posted: Tue Aug 09, 2011 5:33 pm Post subject: |
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Any progress on this? |
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SGKent Samba Member
Joined: October 30, 2007 Posts: 41031 Location: Citrus Heights CA (Near Sacramento)
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Posted: Tue Apr 24, 2012 2:08 pm Post subject: |
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the cheapest I have found someone to make them is out of the price range most of you would pay. I bumped this because someone contacted me re finding a diaphragm or whole new valve. The last new ones I found were in Europe and it was Bobbie who found them, however he no longer frequents here as he lost lots of money selling NOS items due to problems delivering. _________________ “Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
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Chris_914 Samba Member
Joined: September 16, 2011 Posts: 344 Location: Las Vegas
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Posted: Tue Apr 24, 2012 3:13 pm Post subject: |
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I spent a little time pestering the parts guy at the local VW dealership and came home with a similar valve for a 2003 1.9L TDI Jetta/Beetle. It works on the exact same principles but its flow rate is a bit higher. A very important factor is the valve is in the proper orientation, meaning it is designed to go into the valve cover and not the intake boot like the Audi part I've seen.
Only issue so far is a bit of a high idle when completely warmed up. Seems I have some decent blow-by and this valve flows more. I am looking into restricting it to the same size hole that is molded into the upper section of the original valve. |
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skills@eurocarsplus Samba Peckerhead
Joined: January 01, 2007 Posts: 16883 Location: sticksville, ct.
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Posted: Tue Apr 24, 2012 4:52 pm Post subject: |
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Chris_914 wrote: |
I am looking into restricting it to the same size hole that is molded into the upper section of the original valve. |
thats easy enough. find a piece of pvc (or what have you) and slide it inside of the valve to whatever dimention you want to choke it down to _________________
gprudenciop wrote: |
my reason for switching to subaru is my german car was turning chinese so i said fuck it and went japanese....... |
Jake Raby wrote: |
Thanks for the correction. I used to be a nice guy, then I ruined it by exposing myself to the public. |
Brian wrote: |
Also the fact that people are agreeing with Skills, it's a turn of events for samba history |
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