Results 1 to 8 of 8

Thread: Interesting Manual Choke Install Results...

  1. #1
    DX User jtreed@knology.net's Avatar
    Join Date
    Oct 2004
    Posts
    73

    Question Interesting Manual Choke Install Results...

    I did the vacuum removal about a year ago and have enjoyed better performance; bare bones, Stage 4(?), removing everything including the choke and plate. The only issue to work out was rigging a manual choke since the car tends to stall the first few minutes of driving.

    I fabricated a plate and rod (lost the original) and routed a choke lever in the cabin. I tested it last night and today. When closed, the car would not run. Too rich. With the plate 3/4 open, the car runs great and doesn't stall, like a choke should do. This is puzzling b/c the only thing there to restrict air is the 3/4 opened plate, except for a screw hole where I mounted the cable restraint (wouldn't think it would be open to air though?) With the plate open, it's about 15 degrees short of perpendicular over the flat primary venturi surface.

    This is all great, except that since it seems fully open, I'm gonna be running rich. I can adjust the plate so it's 90 degrees and only closes w/ a 15 degree opening or so, but you'd think it would need to be fully closed to work, right? The only other thing I can figure is that screw hole actually goes into the carb and putting a screw there blocked more air, causing me to run rich.

    Anyone have similar exeriences w/ a manual choke?

    One thing I did differently than the stock choke plate was mount it so the larger side of the flap is on TOP of the carb, rather than hanging down just over the venturi and gas injection nozzle. I wouldn't think that makes a big difference but maybe it does.
    Last edited by [email protected]; 12-29-2005 at 12:48 PM.



  2. #2
    SEi User
    Join Date
    Mar 2005
    Vehicle
    swifts/sprints boosted
    Location
    Saskatoon
    Posts
    1,551

    Re: Interesting Manual Choke Install Results...

    Im totally confused, hopefully someone can help with your problem. Would it always stall when it was fully closed? What about fully open when warm?

  3. #3
    3Geez Veteran lostforawhile's Avatar
    Join Date
    Dec 2002
    Vehicle
    86 hatchback, 1990 Lincoln Towncar
    Location
    nowhere GA
    Posts
    15,401

    Re: Interesting Manual Choke Install Results...

    why did you remove the factory choke? it would have still operated fine. there is a choke opener diaphram attached to the factory one that pulls the choke partway open when you first start the car. this could have also been rigged to run without all the other vaccume stuff. it opens the choke partly to make the car able to run with the choke operating,all it needed was a vaccume source.the electric choke heater would have opened the choke the rest of the way when it heated up. all it needed was power from an ignition source to operate properly. this choke is no different from the chokes on holleys and other carbs,it jus had that opener to make it run better under choke. your car is going to run rich anyway,the carb is set that way, the computer control system is what leans it out to a proper mixture.
    Last edited by lostforawhile; 12-29-2005 at 02:25 PM.

  4. #4
    DX User jtreed@knology.net's Avatar
    Join Date
    Oct 2004
    Posts
    73

    Re: Interesting Manual Choke Install Results...

    Yes, it stalls now when fully closed. Now, fully open it runs, probably rich. Before I put it in, it would stall while cold (no choke).

    I'm not sure why I removed it, but I can't find it now.

  5. #5
    3Geez Veteran lostforawhile's Avatar
    Join Date
    Dec 2002
    Vehicle
    86 hatchback, 1990 Lincoln Towncar
    Location
    nowhere GA
    Posts
    15,401

    Re: Interesting Manual Choke Install Results...

    i'll try to remember to look for an assembly in my parts i'm sure i've got one,but i don't have the top hat itself with the choke in it,I sent my last one out, anyone if i send him a choke coil and stuff anybody got carb top hat with a choke plate and linkage in it? oh yea the choke opener thing, i had to repair mine i'm sure i don't have one,but you could just rotate the choke heater cover so it's always partly open if you wanted.

  6. #6
    DX User jtreed@knology.net's Avatar
    Join Date
    Oct 2004
    Posts
    73

    Re: Interesting Manual Choke Install Results...

    I think I can work with what I've got. i want to see if that hole where I screwed the mounting bracket in is blocking air. Otherwise, it's just tuning the choke plate. I can live with it not working, but I'd rather not run rich. I can also try to readjust the A/F mix if necessary.

  7. #7
    3Geez Veteran lostforawhile's Avatar
    Join Date
    Dec 2002
    Vehicle
    86 hatchback, 1990 Lincoln Towncar
    Location
    nowhere GA
    Posts
    15,401

    Re: Interesting Manual Choke Install Results...

    if you can find a junk carb i can help you to set the choke again,your fast idle can be hooked up too since it's mechanical,that way it'll be easier to drive your car in cold weather. as far as mixture if you disconnected the air jet controler there is no way to adjust your mixture other then idle mixture,it's all computer controlled.

  8. #8
    DX User jtreed@knology.net's Avatar
    Join Date
    Oct 2004
    Posts
    73

    Re: Interesting Manual Choke Install Results...

    Cool. I will look around to see what I can find, but probably won't spend much on parts. It's not worth it to me, but if I sell the car, it would be nice for the new owner to have a choke.

    I have two cars now, only need one. I'll probably wear the tires down on the accord though. They're pretty new, so it'll be a while and I may decide to do the choke. I put this thread out just to see if anyone had worked with a choke like this.

Similar Threads

  1. Manual Choke
    By SILENT in forum Carburetor Tech
    Replies: 18
    Last Post: 11-06-2011, 12:52 PM
  2. manual choke
    By mephi in forum Carburetor Tech
    Replies: 3
    Last Post: 04-10-2009, 11:48 PM
  3. Replies: 6
    Last Post: 03-28-2006, 12:31 PM
  4. weber manual choke or electric choke?
    By myaccord7 in forum Performance
    Replies: 4
    Last Post: 11-07-2002, 04:27 PM
  5. manual choke
    By shepherd79 in forum Carburetor Tech
    Replies: 6
    Last Post: 10-02-2002, 05:08 PM

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
This website uses cookies
We use cookies to store session information to facilitate remembering your login information, to allow you to save website preferences, to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.
     
Links monetized by VigLink