2100 choke vacuum control
Thread Starter
|
Junior User
Joined: Aug 2004
Posts: 51
Likes: 0
2100 choke vacuum control
I picked up a remaned 2100 for my '72 and I found out choke vacuum control on the back of the carb is frozen. I can't find anyone who carries it, let alone knows what it is. Are these parts still produced and if not is there another way to make it work? Thanks
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
This is called a choke pull-off. Using this name will make your parts search easier. If this is a 2100, then this is mounted vertically behind the choke tower on the air horn; is that how yours is set up? How is it frozen specifically? All it needs to do is move up and down. They're pretty simple - just a diaphragm with a slug attached, so I would imagine that whatever is preventing it from moving should be easy to free, unless the diaphragm is too stiff from age. Nonetheless, if you need a new one, many manufactures make them - Napa, GP Sorenson, Standard, etc. You should be able to get it from just about any parts store.
Thread Starter
|
Junior User
Joined: Aug 2004
Posts: 51
Likes: 0
It's not on the top but on the passenger side behind the choke themostat. It has a climate controlled choke. My motors manual calls the part " Choke vacuum control assembly ". The vacuum line runs from the vacuum port under the pull off into the " Choke vacuum control assembly " and it hooks up to the linkage that comes off choke plate. Both the pull off on the top and this part operate the same rod for the choke just on different sides. If I knew how to post pictures I'd do it. If the carb will work fine without it I'll just leave it off but I figured there has to be a reason for putting it there.
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
Interesting. The only vacuum mechanism I'm aware of on the passenger side is the choke pull-off for the 2150. Some very early model Autolite 2100's have a pull-off piston internal to the choke housing. So you have the pull-off behind the choke tower on the air horn like I mentioned, but you also have a separate vacuum valve on the passenger side as well? For a total of two vacuum-operated mechanisms operating the choke? Let me know. If you happen to be able to get pictures that would be great.
Thread Starter
|
Junior User
Joined: Aug 2004
Posts: 51
Likes: 0
Well I guess I figured out how to post picts. Its the part that hangs out to the left. Leave it to me to have a one year part. If I can't find a new one will an electric choke be better?
Last edited by BOSSv10; Nov 30, 2007 at 09:15 AM.
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
Thanks for sharing those pictures. I have to say I haven't seen that before. I would say, though, that as long as the choke pull-off and the choke cap work properly, you can get away without it. I would just leave it off. As for an electric choke, there really isn't any reason to switch to one unless you're having problems with the hot-air choke. I run a hot-air choke on one of my vehicles and it does great. Originally electric chokes were introduced as additions to the hot-air system so that the choke would open faster and reduce emmissions. Nowadays, however, you can get fully electric chokes that tend to be less problematic. However if you don't get any trouble with the one you've got on there now then there is no need to replace it with an electric one.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 785
From: Simi Valley, CA
Originally Posted by BOSSv10
I picked up a remaned 2100 for my '72 and I found out choke vacuum control on the back of the carb is frozen. I can't find anyone who carries it, let alone knows what it is. Are these parts still produced and if not is there another way to make it work? Thanks
Engine size, transmission type (3 or 4 speed manual, C4 [302 engine] or C6 [360/390 engine]), F100, F250, F350, sold new in CA, or non CA.
CA vehicles will have a DSO code of 71 or 72.
If you still have the carb ID tag, that will be a big help.
List that info, I'll pass along the Ford & Motorcraft part numbers.
All the 2100 carb parts are not created equal.
Last edited by NumberDummy; Nov 30, 2007 at 11:55 AM.
Trending Topics
Thread Starter
|
Junior User
Joined: Aug 2004
Posts: 51
Likes: 0
The tags first line reads D2GF AA and the second line if you need it is A 1G 7. It came off a 302 with a c-4 auto, thanks.
Thanks for the help fmc400. Any suggestions on which brand of electric choke is best. Just in case I can't get it to work or get a new part.
Thanks for the help fmc400. Any suggestions on which brand of electric choke is best. Just in case I can't get it to work or get a new part.
Last edited by BOSSv10; Nov 30, 2007 at 05:00 PM.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
No problem - Napa tends to have better stuff although it is usually somewhat expensive. Borg Warner is usually pretty good. I don't think there are a whole lot of differences between anything you'll pick up at any of the major parts stores.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 785
From: Simi Valley, CA
Originally Posted by BOSSv10
The tags first line reads D2GF AA and the second line if you need it is A 1G 7. It came off a 302 with a c-4 auto, thanks.
Thanks for the help fmc400. Any suggestions on which brand of electric choke is best. Just in case I can't get it to work or get a new part.
Thanks for the help fmc400. Any suggestions on which brand of electric choke is best. Just in case I can't get it to work or get a new part.
D2AZ-9S514-H .. Control Assy-Vacuum Break (Motorcraft CK-1985)
NAPA can cross the Motorcraft number over to their brand.
Last edited by NumberDummy; Dec 1, 2007 at 12:47 AM.
Thread Starter
|
Junior User
Joined: Aug 2004
Posts: 51
Likes: 0
I guess thats what happens when you buy an old farm truck that turns out to be the frakintruck.
Turns out the engine is out of a later LTD, I'm guessing a II.
Thanks for the help. I'll give Napa a call and see what they have to say.
Turns out the engine is out of a later LTD, I'm guessing a II. Thanks for the help. I'll give Napa a call and see what they have to say.
Junior User
Joined: Mar 2008
Posts: 62
Likes: 0
From: Southern WA
Originally Posted by fmc400
This is called a choke pull-off. Using this name will make your parts search easier. If this is a 2100, then this is mounted vertically behind the choke tower on the air horn; is that how yours is set up? How is it frozen specifically? All it needs to do is move up and down. They're pretty simple - just a diaphragm with a slug attached, so I would imagine that whatever is preventing it from moving should be easy to free, unless the diaphragm is too stiff from age. Nonetheless, if you need a new one, many manufactures make them - Napa, GP Sorenson, Standard, etc. You should be able to get it from just about any parts store.
This is regarding the 71 F250 Automatic with basic 360 with Autolite 2100 suffering from idle problems and leaking gas causing extending cranking at startup after sitting.
Thanks!
Paul
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
Hi Paul - for a 2100, if it is torn, it will not "sit" while the engine runs. With the truck running, it should be push itself all the way down. If, while the engine is running, you can push it down quite a ways, then the diagphragm is ruptured.
These are easily available from many parts stores, they look like this (on its side). This image was taken from Advance Auto's site.
These are easily available from many parts stores, they look like this (on its side). This image was taken from Advance Auto's site.
Thread
Thread Starter
Forum
Replies
Last Post
AubreyA3
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
3
Apr 21, 2016 09:33 AM
sparkyj
1961 - 1966 F-100 & Larger F-Series Trucks
1
Apr 26, 2012 09:24 AM
ClatonK
Fuel Injection, Carburetion & Fuel System
2
Jan 2, 2004 12:52 PM
tbe
1967 - 1972 F-100 & Larger F-Series Trucks
10
Dec 1, 2002 12:09 PM
