Re: IML: Progress Report

[<dansgarage@xxxxxxxxxxxx>]

Hi Dan...the 'choke pull-off' looks like a small (dia. of +/-2in.) flying saucer! Its job is to slowly open the butterfly on your carb. when the engine starts up. When you first get set to turn the key, you usually push the gas pedal down once (sometimes more) to set the butterfly completely closed (and probably give the carb a little squirt of gas). This way the engine will initially start up with lots of gas and little, if any, air in the mixture going from the carb into the engine. As soon as the engine fires up, the choke pull-off is suposed to s-l-o-w-l-y open the butterfly, just a bit to allow more 'air' into the mixture going into the engine. If your car has a bad, or non-functioning, choke pull-off, the car will run very bad and sound like its chugging or missing real bad, until the engine gets warmed up enough for the butterfly to open up from the engine heat. If I remember right, also attached to the butterfly via a spring and some linkage, this spring, sort of like a 'heat riser', is attached right on top of the motor and has a cover which keeps the engine heat underneath and expands a small spring (heat expands the spring) so that eventually the butterfly will open once the spring gets heated up (and expanded) enough.
I had this problem years ago (early 70's) with the '66 Imperial that was my then daily-driver....I had no idea what the problem was for about a year!(made me crazy!) During warm days or mornings the car started fine and never gave me a problem. BUT! in the New York City winters the car had to sit for a while, and warm up, before I could even put it into gear without it stalling. One day I happen to be watching the motor/carb when I had started it up and noticed that the 'little flying saucer thingy' wasn't doing what I had read in the FSM (or someone told me about, I don't remember which) was suposed to do, and the butterfly was staying closed!!! I manually moved the short link from the pull-off to the butterfly and , there it was!... the car ran nice and smooth!!! Back then I could just go to the parts store and get a new one! Ha! try that now!

Anyway, hope I didn't bore you with the story and although lots of guys on this list can probably tell you the same thing in 5 words or less, I hope this helps!!
Good Luck!!
Dan Melnik

P.S. if you ever do find a supplier for these choke pull-off's PLEASE email me so I can see if they carry any for my two '66 Imperials!!!
---- Dan <sunup@xxxxxxxxxxxxx> wrote: 

=============
I hate to have to ask this, but what is a choke pull-off and how do you check it? I thought I had a Holly when I wrote yesterday, but today found out it is a Carter.

Thanks,

Dan

67CC
  ----- Original Message ----- 
  From: john sadowski 
  To: mailing-list@xxxxxxxxxxxxxxxx 
  Sent: Friday, November 03, 2006 6:32 PM
  Subject: Re: IML: Progress Report


  If you have a choke pull off on your carb, check to see that it is functioning. I had a 66 with the symptoms you describe & that was all that was wrong with it.
  John
    ----- Original Message ----- 
    From: randalpark@xxxxxxx 
    To: mailing-list@xxxxxxxxxxxxxxxx 
    Sent: Friday, November 03, 2006 7:07 AM
    Subject: Re: IML: Progress Report


    Black smoke means a rich mixture. Choke being stuck, plugged air filter, or stuck floats in the carb are common causes. It now probably also needs to have the spark plugs cleaned/replaced.

    Paul W. 

     
    -----Original Message-----
    From: sunup@xxxxxxxxxxxxx
    To: mailing-list@xxxxxxxxxxxxxxxx
    Sent: Thu, 2 Nov 2006 5:41 PM
    Subject: Re: IML: Progress Report



      CC was just delivered. I pumped the gas a few times to set the choke on the 440 and my 67 Crown started right up with the oil, fuel and alt guages immediately coming to life. But she ran very rough. I figured it was because it is cold (about 28 degrees) and gave it about 15 minutes to warm up until I got a temp reading of about 20%. It continued to run rough while dark (black) smoke exited the back. As I listening to her idle I could hear it miss. I put her in drive and rolled down off the small hill where she was parked. When I put it in reverse to drive back up she started to buck and stall so I gave it more gas. It sounded labored the way a tired engine will sound but did make it back up. I'm dissapointed and not at all sure it's any better now than the last time I drove it. 

      In the hopes it's nothing too serious like valves, heads etc, I'd like suggestions of what else it could be. Here's a list of what they did; 

      new points and condenser
      set ignition timing
      adjusted carb
      changed the plug I couldn't get to so now it has all new plugs with just over 100,000 miles and old gas. 

      I've read posts about old gas and am hoping that's the culprit. There's also a possibility I might have added more lead additive than necessary.

      Thanks in advance for your suggestions.

      Dan Collins

      67 Crown Coupe 

----------------------------------------------------------------------------
    Check out the new AOL. Most comprehensive set of free safety and security tools, free access to millions of high-quality videos from across the web, free AOL Mail and more.



-----------------  http://www.imperialclub.com  -----------------
This message was sent to you by the Imperial Mailing List. Please
reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be
shared with everyone. Private messages (and attachments) for the
Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx
To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm