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smitty Samba Member

Joined: January 04, 2004 Posts: 141 Location: Nashville Tn.
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Posted: Tue Jul 18, 2006 6:04 pm Post subject: balance tube |
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Hey all, just looking for some info on carburetor balance tubes. I have a set of Solex PDSIT 32s but I'm missing the balance tube. The manifolds are dual port and the spigots for the tube are 8mm but the bracket (which also supports the aircleaner) the tube runs through is much larger, say 14mm. Now for the Q&A... Is there supposed to be a grommet in the bracket? Whats the ID and the OD of the tube supposed to be (approx.)? What happens if the tube is larger/smaller/eliminated?
thanks for playing! |
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Russ Wolfe Samba Member

Joined: October 08, 2004 Posts: 25187 Location: Central Iowa
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Posted: Tue Jul 18, 2006 6:59 pm Post subject: |
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Should be a piece of rubber around the tube where it goes through the center bracket.
I made my balance pipe when I did my conversion to dual port from some 5/16" gas line from the local parts store.
http://classicvw.org/gallery/main.php?g2_view=core.ShowItem&g2_itemId=1767
You can kinda see it in that picture. _________________ Society is like stew. If you don't keep it stirred up, you end up with a lot of scum on the top!--Edward Abbey
Gary: OK. Ima poop. |
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smitty Samba Member

Joined: January 04, 2004 Posts: 141 Location: Nashville Tn.
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Posted: Tue Jul 18, 2006 9:44 pm Post subject: |
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Works for me. Thanks Russ |
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EverettB  Administrator

Joined: April 11, 2000 Posts: 71333 Location: Phoenix 602
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jimmynotch Samba Member

Joined: February 11, 2003 Posts: 2901 Location: sacramento
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Posted: Tue Jul 18, 2006 10:31 pm Post subject: |
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EverettB wrote: |
The 64-66 balance tube for the single port engines is larger:
http://www.thesamba.com/vw/forum/album_page.php?pic_id=291340
They retained the same center bracket for '67, which used a smaller balance tube, so a bushing was used to make up the space.
If anyone needs a 64-66 big balance tube, I have some for sale. |
What happens if one usd a smaller diameter tube for SP? Is there a change in performance? _________________ Jim in Sacto -
my wonderful loving supportive wife wrote: |
You guys are dorks. |
1965 1500-S Notchback --"Maggy"
1971 Type 2 Double Cab --"George"
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EverettB  Administrator

Joined: April 11, 2000 Posts: 71333 Location: Phoenix 602
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Posted: Tue Jul 18, 2006 10:35 pm Post subject: |
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jimmynotch wrote: |
EverettB wrote: |
The 64-66 balance tube for the single port engines is larger:
http://www.thesamba.com/vw/forum/album_page.php?pic_id=291340
They retained the same center bracket for '67, which used a smaller balance tube, so a bushing was used to make up the space.
If anyone needs a 64-66 big balance tube, I have some for sale. |
What happens if one usd a smaller diameter tube for SP? Is there a change in performance? |
Assuming you could get the tubing to make it work, I think it would just be harder to balance the carburetors correctly? I don't know what would happen when driving. _________________ How to Post Photos
Everett Barnes - [email protected] | My wanted ads
"Water is the only drink for a wise man" | "Communication prevents complaints"
Stop dead photo links! Post your photos to The Samba Gallery! |
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mr. warehouse Samba Member

Joined: February 27, 2001 Posts: 5002 Location: Nor Cal 707
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Posted: Tue Jan 02, 2007 12:32 pm Post subject: |
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Digging up an old thread.......
I was adjusting the carbs on my Square yesterday and noticed no balance tube (I'll fix that) but 2 spigots coming oiut of each manifold for a total of 4 spigots.
2 balance tubes or what??
Aside from the typical #3 acting funny at idle everyhing else is smooth. |
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BerT3 Samba Member
Joined: August 18, 2002 Posts: 1569 Location: Antwerp
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mr. warehouse Samba Member

Joined: February 27, 2001 Posts: 5002 Location: Nor Cal 707
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Posted: Tue Jan 02, 2007 5:19 pm Post subject: |
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Perfect, that's what I needed to know.
I'll make some here unless anyone has some for sale?? |
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