Venturi Removal

AA Ford Discussion Group relating to the repair and restoration of your AA Ford.
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captain marty
Posts: 208
Joined: May 13th, 2009, 6:58 pm
Body Type: firetruck
Model Year: 1928
Location: Tulsa

Venturi Removal

Post by captain marty »

It seems to be one thing after another rebuilding 2 carbs and learning more as I go.
One of my carbs has a frozen venturi in the top half. It will not budge.
I have seen the home made venturi extraction tools but nobody shows how it works.
I may need a press.
Marty
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Chris Haynes
Posts: 2203
Joined: September 7th, 2003, 5:18 pm
Body Type: 82A
Model Year: 1930
Location: Camarillo, CA

Re: Venturi Removal

Post by Chris Haynes »

captain marty wrote:It seems to be one thing after another rebuilding 2 carbs and learning more as I go.
One of my carbs has a frozen venturi in the top half. It will not budge.
I have seen the home made venturi extraction tools but nobody shows how it works.
I may need a press.
Marty

Soak it in WHITE Vinegar for a day or two to disolve the rust that is holding it in.
Reds34
Posts: 603
Joined: May 15th, 2010, 2:34 pm
Body Type: dump
Model Year: 1930
Location: Eastern, CT

Re: Venturi Removal

Post by Reds34 »

If you search Fordbarn I know there have been threads on that. I think some suppliers may sell them too. Have you tried heat? I think most pullers are a piece of pipe or a socket, a bolt or threaded rod, a washer with two flat sides and a nut.

Red
Bob C
Posts: 1442
Joined: April 24th, 2003, 11:50 am
Body Type: Mail truck, Stake tr
Model Year: 1931
Location: SO CAL

Re: Venturi Removal

Post by Bob C »

Here's a link to Tom Endy's great overhaul article.
http://www.ocmafc.org/techarticles/Tom% ... 1-2007.pdf

Bob
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captain marty
Posts: 208
Joined: May 13th, 2009, 6:58 pm
Body Type: firetruck
Model Year: 1928
Location: Tulsa

Re: Venturi Removal

Post by captain marty »

I see the tool but nobody can show me how to use it.
I will try heating up the parts and dunking in cold water when time permits.
Marty
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macswoods
Posts: 313
Joined: May 4th, 2009, 1:20 pm
Body Type: 82-A
Model Year: 1929
Location: Wilhoit, Arizona

Re: Venturi Removal

Post by macswoods »

be real careful those venturis are fragile .
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captain marty
Posts: 208
Joined: May 13th, 2009, 6:58 pm
Body Type: firetruck
Model Year: 1928
Location: Tulsa

Re: Venturi Removal

Post by captain marty »

From what I've read, the venture is made of pot metal and should be soft. I do have a new one.
I will try the vinegar bath tonight before trying the heat.
Marty
Stakebed
Posts: 1223
Joined: June 14th, 2007, 7:29 pm
Body Type: Grainbox
Model Year: 1929
Location: Illinois

Re: Venturi Removal

Post by Stakebed »

if that doesnt work we had to use a bare hacksaw blade and make a slit in the side of it and pop it out that way. Mine did not want to come out of its home haha.
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captain marty
Posts: 208
Joined: May 13th, 2009, 6:58 pm
Body Type: firetruck
Model Year: 1928
Location: Tulsa

Re: Venturi Removal

Post by captain marty »

After the vinegar and maybe some heat I may cut the thing out
Marty
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Chris Haynes
Posts: 2203
Joined: September 7th, 2003, 5:18 pm
Body Type: 82A
Model Year: 1930
Location: Camarillo, CA

Re: Venturi Removal

Post by Chris Haynes »

captain marty wrote:After the vinegar and maybe some heat I may cut the thing out
Marty

Heating is OK if done carefully. BUT DO NOT PUT IT IN WATER WHEN IT IS HOT. This will make it brittle.
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captain marty
Posts: 208
Joined: May 13th, 2009, 6:58 pm
Body Type: firetruck
Model Year: 1928
Location: Tulsa

Re: Venturi Removal

Post by captain marty »

No movement and the vinegar only discolored both parts and stunk up the place. I will try heating the body and putting dry ice inside the venturi and see if both metals go in different directions.
Marty
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Chris Haynes
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Body Type: 82A
Model Year: 1930
Location: Camarillo, CA

Re: Venturi Removal

Post by Chris Haynes »

You have to soak in the WHITE vinegar for at least 24 hours.
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Brady
Posts: 361
Joined: October 21st, 2003, 1:38 pm
Body Type: None
Model Year: 1930
Location: Norwich, NY 13815

Re: Venturi Removal

Post by Brady »

Look it all over closely. You may not have to remove it unless it's damaged - if so, then just smash it out of there. I made the removal tool and it works great some of the time, but once in awhile it really tears up the top portion of the venturi. You might just shine it up carefully with some 000 steel wool. If it is that bad, you'll likely find much more of a problem with the secondary well. Study, collect, and make the carb tools you'll need - winter is coming, and you can enjoy working on them through the cold weather. Good luck
Stakebed
Posts: 1223
Joined: June 14th, 2007, 7:29 pm
Body Type: Grainbox
Model Year: 1929
Location: Illinois

Re: Venturi Removal

Post by Stakebed »

Brady wrote:Look it all over closely. You may not have to remove it unless it's damaged - if so, then just smash it out of there. I made the removal tool and it works great some of the time, but once in awhile it really tears up the top portion of the venturi. You might just shine it up carefully with some 000 steel wool. If it is that bad, you'll likely find much more of a problem with the secondary well. Study, collect, and make the carb tools you'll need - winter is coming, and you can enjoy working on them through the cold weather. Good luck
yea #1 reason why i haven't gone thru the one i picked up at a swap meet yet. easy winter project! :P
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