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Stock jetting specs for PHN and PDSIT carbs
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Paul Wilson
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PostPosted: Fri Feb 01, 2013 1:16 pm    Post subject: Reply with quote

Ok, the PDSIT 3. The actual measurements of tube heights are;
Acc. tube 12mm
power tube 15.29mm

PDSIT - 2
ACC tube 14.5mm
power tube 11.5 mm
I will correct the heights to match the -3.

jetting will be as follows:
PDSIT-2
24mm venturies
Main 132.5
Air correction 150
55 elect idle

PDSIT - 3
24 mm venturies
Main 130
air correction 120
55 elect idle

Per the chart, I should not have the power jet at all. I will leave them for now rather than remove and plug or just plug.
Paul
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mightymouse
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PostPosted: Mon Nov 11, 2013 5:54 pm    Post subject: Reply with quote

This is such a nightmare. lol

Anyone have all the paperwork in english?

It seems like a vital resource not to.

I need to know what jets i should have in 1967 32 pdsit's on an all stock 1600 with a header and single QP. Also has a pertronix vac distributor.

Plan is to put a wideband on it and jet from there. But until that comes in id love to have some input on what people have found works best.

We do have the air filter that requires the staggered jet setup.

Thanks in advance. Any info is appreciated. Smile

Dave
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EverettB Premium Member
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PostPosted: Mon Nov 11, 2013 10:19 pm    Post subject: Reply with quote

For English:
Go this page on the site:
http://www.thesamba.com/vw/archives/manuals/techbulletins/m1.php

The '67 Type 3 one is at the bottom, titled:
1967 Supplement 4
VW Engines - 45 & 54 bhp
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Slow 1200
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PostPosted: Tue Nov 12, 2013 3:53 am    Post subject: Reply with quote

what's the VW number on those carbs you have? I'd match first the jetting to what they came with originally
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miguedangel
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PostPosted: Tue Dec 16, 2014 10:29 am    Post subject: Reply with quote

thank you very much for this post Wink

but I have a some problem Shocked do not know if this well Embarassed my left carb has a bronze not know how to describe... 050 can not be replaced and my carburetor right has bronze 100 ... that is correct??? Rolling Eyes I do not get information from them Embarassed

Carbu Left
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Carbu Right
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reay
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PostPosted: Tue Dec 16, 2014 2:24 pm    Post subject: Reply with quote

[quote="Slow 1200"]automatic 68-69, with altitude correcting main jets:
Image may have been reduced in size. Click image to view fullscreen.



This is great info - so the main jets are different sizes?

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


I needed to rejet for my new motor and couldn't with the Alt helpers - you just can't find them in different sizes. Ended up get a beautiful pair of 1970 carbs and re-jetting those.
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W1K1
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PostPosted: Tue Dec 16, 2014 3:08 pm    Post subject: Reply with quote

Quote:
I needed to rejet for my new motor and couldn't with the Alt helpers - you just can't find them in different sizes


You can just take out the big lump and put in a standard jet and plug
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reay
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PostPosted: Tue Dec 16, 2014 4:55 pm    Post subject: Reply with quote

It seems like you could, but you can't.
No threads where the jet goes into the venturi - that's what the o-ring does, and the fuel bowl and even the float are a different configuration.
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Tom Reay

68 Karmann Ghia Sunroof / auto T345
66 Standard Microbus T221
66 1200a Standard 115 with factory ragtop
2002 Porsche 996 Carrera C4
Going to be there again in 2020!
I WAS THERE AS WELL!!!
Central Coast Type 3 Rally

http://www.thesamba.com/vw/forum/viewtopic.php?t=665208
I WAS THERE!!!!!!!!
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http://www.thesamba.com/vw/forum/viewtopic.php?p=5475588#5475588
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Randall
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PostPosted: Tue Dec 16, 2014 5:01 pm    Post subject: Reply with quote

What if you go to bigger displacement -- 1641, 1679, 1776, and so on -- do you use bigger jets? I read a HotVWs article back in the '70s about changing jet sizes.
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Slow 1200
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PostPosted: Wed Dec 17, 2014 3:18 am    Post subject: Reply with quote

[quote="reay"]
Slow 1200 wrote:
automatic 68-69, with altitude correcting main jets:
Image may have been reduced in size. Click image to view fullscreen.



This is great info - so the main jets are different sizes?

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


I needed to rejet for my new motor and couldn't with the Alt helpers - you just can't find them in different sizes. Ended up get a beautiful pair of 1970 carbs and re-jetting those.


the differently sized main jets (and air correctors) are due to the air cleaner design, if you use the later cleaner you can jet them symetrically

I thought altitude correction main jets could actually be adjusted, but I would definetely not trust a 40 year old diaphragm Laughing
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W1K1
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PostPosted: Wed Dec 17, 2014 9:01 am    Post subject: Reply with quote

Quote:
What if you go to bigger displacement -- 1641, 1679, 1776, and so on -- do you use bigger jets?


Yes, sometimes even a change in exhaust on a stock motor can warrant a jet change. You can change the venturies for bus ones (26mm) as well for better flow.

I played around with mine on the 1600cc a bit before I bought the 36 dells for the 1904cc. This was about as good as it got when I was playing with it with the 26mm vents.

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

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daos
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PostPosted: Sun Jul 07, 2019 11:56 pm    Post subject: Reply with quote

EverettB wrote:
For English:
Go this page on the site:
http://www.thesamba.com/vw/archives/manuals/techbulletins/m1.php


so how does the archive work? if i go the index page there is no link called 'manuals' yet that's what's in the url. if i shorten the url to just 'manuals' there's a whole page of info which isn't in the index..
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EverettB Premium Member
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PostPosted: Mon Jul 08, 2019 8:43 am    Post subject: Reply with quote

daos wrote:
EverettB wrote:
For English:
Go this page on the site:
http://www.thesamba.com/vw/archives/manuals/techbulletins/m1.php


so how does the archive work? if i go the index page there is no link called 'manuals' yet that's what's in the url. if i shorten the url to just 'manuals' there's a whole page of info which isn't in the index..


It goes to the main manuals page.
Click on Technical Bulletins there to see the overall technical bulletins page

I admit this not super easy to figure out if you just shorten the URL

If you shorten it to just http://www.thesamba.com/vw/archives/manuals/techbulletins/ it will also redirect to the Technical Bulletins index (now, just did that)
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daos
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PostPosted: Mon Jul 08, 2019 8:58 am    Post subject: Re: Stock jetting specs for PHN and PDSIT carbs Reply with quote

ok, thanks. i was thinking about all the exhortations to 'use the search' so often aimed at people asking questions. turns out there's a bunch of hidden info on the site that would never turn up just using the indexed material.

what does samba dog say?
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PostPosted: Mon Jul 08, 2019 6:10 pm    Post subject: Re: Stock jetting specs for PHN and PDSIT carbs Reply with quote

The Samba Dog approves of the current organization of the site.
You probably only hear a "bark" sound though, the specific meaning is in the tone and length. Very Happy
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