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modok Samba Member
Joined: October 30, 2009 Posts: 26785 Location: Colorado Springs
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Posted: Tue Feb 24, 2015 8:03 pm Post subject: |
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vamram wrote: |
What's the purpose of an "emulsion" tube in a 34PICT-3 carb, or any other VW carb for that matter?
Thanks,
Victor |
Because it helps to emulsify the fuel. (mix air with it) Also serves as a metering jet. |
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vamram Samba Member
Joined: March 08, 2012 Posts: 7300 Location: NOVA
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Posted: Wed Feb 25, 2015 4:56 am Post subject: |
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modok wrote: |
vamram wrote: |
What's the purpose of an "emulsion" tube in a 34PICT-3 carb, or any other VW carb for that matter?
Thanks,
Victor |
Because it helps to emulsify the fuel. (mix air with it) Also serves as a metering jet. |
Thanks - can a carb run w/out it? _________________ Eventually, "we are what we pretend to be.’”
Give peace a chance - Stop Russian-Soviet Aggression!!
'74 Super 9/16 - present, in refurb process.
'73 Super - 6/18 - Present - Daily Driver!
'75 Super Le Grande...waiting it's turn in line behind '74.
Click to view image
Save the Supers!! |
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langan Samba Member
Joined: December 31, 2010 Posts: 423 Location: Eagle ID.
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Posted: Fri Feb 27, 2015 6:15 pm Post subject: |
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Well I do thank ALL of you that ansewer my stupid questions. Best VW forum |
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vamram Samba Member
Joined: March 08, 2012 Posts: 7300 Location: NOVA
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Posted: Fri Feb 27, 2015 9:53 pm Post subject: |
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vamram wrote: |
modok wrote: |
vamram wrote: |
What's the purpose of an "emulsion" tube in a 34PICT-3 carb, or any other VW carb for that matter?
Thanks,
Victor |
Because it helps to emulsify the fuel. (mix air with it) Also serves as a metering jet. |
Thanks - can a carb run w/out it? |
Sorry to quote myself but - I've been told that I can run the 34/3 w/out the emulsion tube and just keep changing out the idle jet until I get to one that works...part of a discussion about MPG. Has anybody done this successfully?
In other words - is it possible to and is there any benefit to running the 34/3 carb w/out the emulsion tube? _________________ Eventually, "we are what we pretend to be.’”
Give peace a chance - Stop Russian-Soviet Aggression!!
'74 Super 9/16 - present, in refurb process.
'73 Super - 6/18 - Present - Daily Driver!
'75 Super Le Grande...waiting it's turn in line behind '74.
Click to view image
Save the Supers!! |
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airschooled Air-Schooled
Joined: April 04, 2012 Posts: 12721 Location: on a bike ride somewhere
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Posted: Sun Mar 15, 2015 12:43 am Post subject: |
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vamram wrote: |
Sorry to quote myself but - I've been told that I can run the 34/3 w/out the emulsion tube and just keep changing out the idle jet until I get to one that works...part of a discussion about MPG. Has anybody done this successfully?
In other words - is it possible to and is there any benefit to running the 34/3 carb w/out the emulsion tube? |
I'm confused… I've usually seen emulsion tubes on air-correction jets, which are not in play at idle at all. What are you trying to accomplish?
How will you know when you've changed out your idle jet to one that "works"? (The numbers on them are usually wrong, so I always check them with a jet gauge.) You can seriously mess up your engine with an over-lean idle jet when going for fuel economy. Tuning on this edge without an air-fuel ratio meter/sensor is risky business.
Robbie _________________ Learn how your vintage VW works. And why it doesn't!
One-on-one tech help for your Volkswagen:
www.airschooled.com |
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vamram Samba Member
Joined: March 08, 2012 Posts: 7300 Location: NOVA
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Posted: Sun Mar 15, 2015 7:05 am Post subject: |
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Robbie - thanks for the reply. Is there an AFR that you would recommend for a stock 1600dp w/a stock muffler?
Victor _________________ Eventually, "we are what we pretend to be.’”
Give peace a chance - Stop Russian-Soviet Aggression!!
'74 Super 9/16 - present, in refurb process.
'73 Super - 6/18 - Present - Daily Driver!
'75 Super Le Grande...waiting it's turn in line behind '74.
Click to view image
Save the Supers!! |
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airschooled Air-Schooled
Joined: April 04, 2012 Posts: 12721 Location: on a bike ride somewhere
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Posted: Sun Mar 15, 2015 9:40 am Post subject: |
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vamram wrote: |
Robbie - thanks for the reply. Is there an AFR that you would recommend for a stock 1600dp w/a stock muffler?
Victor |
That's a really loaded question. The AFR will change based on load, RPM, timing, and intake/exhaust flow. So we want a richer ratio during acceleration, a slightly rich ratio while cruising, and a stoichiometric or slightly leaner ratio when at high RPMs letting off the throttle. An idle at stoichiometric or slightly richer is your goal too.
The idle/pilot jet affect your mixture when you're accelerating in low RPMs. It also affects your base idle, which you then fine tune with the mixture and volume screws. Your main jet takes over from there, working with the air correction jet to keep you from going to far in either correction.
Let's go to this thread if we want to talk about sensor tuning; I've tuned by feel for years, and just started using a wide-band O2 sensor this year, and it has confirmed all of my "gut" feelings of jetting, timing, and idle tuning.
http://www.thesamba.com/vw/forum/viewtopic.php?t=525240
So I ask you:
What are you trying to achieve, and why do you think taking off an emulsion tube will solve your issues? _________________ Learn how your vintage VW works. And why it doesn't!
One-on-one tech help for your Volkswagen:
www.airschooled.com |
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vamram Samba Member
Joined: March 08, 2012 Posts: 7300 Location: NOVA
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Posted: Sun Mar 15, 2015 10:50 am Post subject: |
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asiab3 wrote: |
vamram wrote: |
Robbie - thanks for the reply. Is there an AFR that you would recommend for a stock 1600dp w/a stock muffler?
Victor |
That's a really loaded question. The AFR will change based on load, RPM, timing, and intake/exhaust flow. So we want a richer ratio during acceleration, a slightly rich ratio while cruising, and a stoichiometric or slightly leaner ratio when at high RPMs letting off the throttle. An idle at stoichiometric or slightly richer is your goal too.
The idle/pilot jet affect your mixture when you're accelerating in low RPMs. It also affects your base idle, which you then fine tune with the mixture and volume screws. Your main jet takes over from there, working with the air correction jet to keep you from going to far in either correction.
Let's go to this thread if we want to talk about sensor tuning; I've tuned by feel for years, and just started using a wide-band O2 sensor this year, and it has confirmed all of my "gut" feelings of jetting, timing, and idle tuning.
http://www.thesamba.com/vw/forum/viewtopic.php?t=525240
So I ask you:
What are you trying to achieve, and why do you think taking off an emulsion tube will solve your issues? |
Robbie, apologies, i posted an incomplete question. I meant to ask about an "AFR SENSOR", not the AFR itself.
I have that thread bookmarked and have just started making my way thru it. Check out this thread (http://www.thesamba.com/vw/forum/viewtopic.php?t=621196&start=0&postdays=0&postorder=asc&highlight=) for details what i'm trying to accomplish - better MPG out of my basic 1600dp. This is thesamba so you'll some of the usual silliness on it. _________________ Eventually, "we are what we pretend to be.’”
Give peace a chance - Stop Russian-Soviet Aggression!!
'74 Super 9/16 - present, in refurb process.
'73 Super - 6/18 - Present - Daily Driver!
'75 Super Le Grande...waiting it's turn in line behind '74.
Click to view image
Save the Supers!! |
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banditwolf Samba Member
Joined: April 03, 2011 Posts: 617 Location: oHIo
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Posted: Mon Mar 16, 2015 8:01 pm Post subject: |
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Is there a way to tell if the Upper Strut bearing mounts are worn?
I didn't see anything in the Bently book.
I'm going to be doing the suspension soon on my 73 SB. Never driven it so I don't know how it handled before. _________________ 1973 Super Beetle l 1981 Trans Am |
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modok Samba Member
Joined: October 30, 2009 Posts: 26785 Location: Colorado Springs
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Posted: Mon Mar 16, 2015 8:55 pm Post subject: |
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vamram wrote: |
vamram wrote: |
modok wrote: |
vamram wrote: |
What's the purpose of an "emulsion" tube in a 34PICT-3 carb, or any other VW carb for that matter?
Thanks,
Victor |
Because it helps to emulsify the fuel. (mix air with it) Also serves as a metering jet. |
Thanks - can a carb run w/out it? |
Sorry to quote myself but - I've been told that I can run the 34/3 w/out the emulsion tube and just keep changing out the idle jet until I get to one that works...part of a discussion about MPG. Has anybody done this successfully?
In other words - is it possible to and is there any benefit to running the 34/3 carb w/out the emulsion tube? |
That is a cheap carb, if they could have left it out they would have!
All carbs have emulsion tubes or wells, they can sometimes be improved, but you have to be very lucky to find an improvement.
In addition to the usual, tune with the venturi size, main air jet size, and idle air jet size.
WAIT....i get it. I think what you read was about disabling the main system so you can tuning idle jet size only. Yeah you caould leave out the tube and air jet for tuning purposes. |
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vamram Samba Member
Joined: March 08, 2012 Posts: 7300 Location: NOVA
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Posted: Tue Mar 17, 2015 4:05 am Post subject: |
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modok wrote: |
WAIT....i get it. I think what you read was about disabling the main system so you can tuning idle jet size only. Yeah you caould leave out the tube and air jet for tuning purposes. |
AH-HAH! Thanks Modok. Question is - can i really tune the carb better by doing this or is this just a hack? _________________ Eventually, "we are what we pretend to be.’”
Give peace a chance - Stop Russian-Soviet Aggression!!
'74 Super 9/16 - present, in refurb process.
'73 Super - 6/18 - Present - Daily Driver!
'75 Super Le Grande...waiting it's turn in line behind '74.
Click to view image
Save the Supers!! |
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LemonheadWhitaker Samba Member
Joined: April 27, 2014 Posts: 3 Location: Torrance, California
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Posted: Mon Mar 30, 2015 8:58 am Post subject: Super Beetles & Standard Beetles |
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I know that the 1303 Super Beetles had the big panoramic windshield installed primarily to pass crash tests. How were the flat-windowed standard Beetles able to be sold beside them? Did they still meet the Federal crash requirement? |
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Lmcook919 Samba Member
Joined: November 12, 2014 Posts: 4 Location: Beck Row, UK
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Posted: Tue Mar 31, 2015 7:24 pm Post subject: Fuse Box Wiring |
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I am working on rewiring the fuse box of a 1973 1303. (I am currently trying to salvage the shotty wiring, that was with the car when I bought it, for a short time). I have shot wires from disconnect to disconnect and traced wires through the appropriate wiring diagram. I notice on some of the fuse box layout that some fuses almost looked as though they are chained together.
Any guidance (if that is the case) on what fuses go together and Do I simply run the appropriate gauge wire from terminal to terminal on the upper part of the fuse box that has two terminals together? Any information would be greatly appreciated I am hoping to figure this out before i get it completely rewired and try to crank it up for the first time after the salvage.
I am using the two tier fuse box with the relay tower attached if that helps at all.
Thanks,
Lmcook919 |
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vamram Samba Member
Joined: March 08, 2012 Posts: 7300 Location: NOVA
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Posted: Fri Apr 17, 2015 10:33 am Post subject: |
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What does "flash" time of a paint mean? _________________ Eventually, "we are what we pretend to be.’”
Give peace a chance - Stop Russian-Soviet Aggression!!
'74 Super 9/16 - present, in refurb process.
'73 Super - 6/18 - Present - Daily Driver!
'75 Super Le Grande...waiting it's turn in line behind '74.
Click to view image
Save the Supers!! |
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Volks Wagen Samba Member
Joined: February 13, 2013 Posts: 2926 Location: Germany
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Posted: Fri Apr 17, 2015 1:50 pm Post subject: Re: Super Beetles & Standard Beetles |
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LemonheadWhitaker wrote: |
I know that the 1303 Super Beetles had the big panoramic windshield installed primarily to pass crash tests. How were the flat-windowed standard Beetles able to be sold beside them? Did they still meet the Federal crash requirement? |
My understanding is that in USA standard stopped and it was Supers only due to this safety legislation. _________________ 1973 1303 with AB-motor - sporadic
reconstruction as time permits, 1986 ex-Bundeswehr Doka - on the road again.
I'm definitely, probably, the worlds greatest lover.
Aithníonn ciaróg ciaróg eile. |
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vamram Samba Member
Joined: March 08, 2012 Posts: 7300 Location: NOVA
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Posted: Fri Apr 17, 2015 2:28 pm Post subject: |
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The panoramic windshield began in the US w/the '73 Super. Standards were sold alongside these Supers through 1977. _________________ Eventually, "we are what we pretend to be.’”
Give peace a chance - Stop Russian-Soviet Aggression!!
'74 Super 9/16 - present, in refurb process.
'73 Super - 6/18 - Present - Daily Driver!
'75 Super Le Grande...waiting it's turn in line behind '74.
Click to view image
Save the Supers!! |
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Type1_trans Samba Member
Joined: May 28, 2014 Posts: 10 Location: United States
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Posted: Tue Apr 21, 2015 11:09 am Post subject: Panoramic windshields |
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The curved windshields were introduced because there was serious lobbying to introduce a requirement in the US safety standards for a minimum distance from the back of the steering wheel to the inside of the windshield that would have killed beetle sales overnight. |
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hitest Samba Member
Joined: September 30, 2008 Posts: 10296 Location: Prime Meridian, ID
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Posted: Wed Apr 22, 2015 4:48 pm Post subject: |
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That's a lot of R & D and of course production costs for an uncertain US-only law. Weren't 1303s sold everywhere? _________________
EverettB wrote: |
I wonder what the nut looks like.
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'62 L390 151, '62 L469 117, '63 L380 113, '64 L87 311, '65 L512 265, '65 L31 SO-42, '66 L360 251, '68 L30k 141, '71 L12 113, '74 ORG 181
FU#5 |
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GArBa Samba Member
Joined: January 27, 2014 Posts: 2105 Location: Milano, Italy
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Posted: Wed Apr 22, 2015 11:32 pm Post subject: |
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it's my understanding that at the time there was a lot of uncertainty at VW concerning the product line up. failure of the type 4 program was evident by then, the EA266 had just been axed, and success of the soon to be watercooled range was far from granted. beetle sales were still strong, albeit not in '60s numbers, so in this frame it probably made some sense to them to keep the bug "futureproof" just in case, and eventually drop the torsion bar beetle entirely.
then the golf came around, and things changed again. _________________ cars:
'97 type 1 1600i
'14 type AA Seat Mii (sadly dead after 270.000 km)
'22 type C1 T-Cross
'23 type AC3 Hyundai I10 (VW no longer makes small cars!)
-------------------------
moped:
'82 Benelli Magnum 3v |
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porkchop-rob Samba Member
Joined: April 28, 2015 Posts: 440
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Posted: Tue Apr 28, 2015 5:02 am Post subject: |
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Hello, this is my first post!
I just purchased a 69 Baja and I am beginning the tear down and clean up process. This car will be completely restored and is to be my 8 yr old sons first vehicle. I plan to purchase another VW for his twin sister as her first!
I am looking for a replacement panel for the engine firewall. The one in my car seems to be rusted completely through. Not the interior panel....just the exterior one. I am not sure if this is available or not, as I cannot seem to find one by searching the interwebs.....help! LOL
The floorboards and heater channels seem to be fine, but the kick panels and this firewall need attention. Hopefully I can get the body off of the pan this weekend and really get a look at what is needed. |
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