Presentation ... and first problem!

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Presentation ... and first problem! - 7/31/2007 9:39:25 AM    _Remi Posts: 121 Joined: 7/31/2007 Status: offline Hi, I am a French guy living in San Francisco, very new to the Mustang world and I bought a nice 1967 289 three weeks ago. Everything is fine with the car (new interior, nice color, amazing sound) but I have a problem and would like to have your opinion. When I am stopped and start moving, I have to accelerate very slowly for 4 to 5 seconds otherwise I have the feeling that the engine will stop. Everything is fine when I do not accelerate (it does not stop) and when I am moving (I have pretty good performances on the highway). It's only between 0-20 mph that it happens. Note that it is both when the engine is cold and warm :( Do you have any idea about what it could be? Thanks a lot! Post #: 1

RE: Presentation ... and first problem! - 7/31/2007 9:48:24 AM    crunchyskippy Posts: 279 Joined: 6/27/2006 From: Northern Virginia Status: offline I'd start by pulling off your air cleaner and check to see if your accelerator pump is working.  Look down the carb and manually pull the accelerator and listen/look for gas squirting as you do this.  Let us know...it could be a number of things but this will cross at least one off. _____________________________ ___ ___ ___ ___ ___ ___ ___ ___ _____________________________ 1967 Mustang Coupe 302 Automatic (in reply to _Remi) Post #: 2

RE: Presentation ... and first problem! - 7/31/2007 9:50:29 AM    my77stang Posts: 6970 Joined: 12/19/2006 From: Citrus County, FL Status: online it certainly sounds like a carb. issue to me. what is on there? you could have a 2 barrel autolite or a 4 barrel edelbrock, holley, autolite, etc. _____________________________ wat? (in reply to crunchyskippy) Post #: 3

RE: Presentation ... and first problem! - 7/31/2007 10:06:43 AM    67mustang302   Posts: 5421 Joined: 4/21/2007 Status: offline Yeah, 10 to 1 says it's the accelerator pump, or something else carb related _____________________________ Who cares how much horsepower it has, all that matters is how fast it goes! Best run 13.23 at 106.97mph with a 2.183 60' Times from before tune and driver mod. (in reply to my77stang) Post #: 4

RE: Presentation ... and first problem! - 7/31/2007 10:09:16 AM    JMD Posts: 3138 Joined: 1/18/2007 From: Las Cruces, NM Status: offline Congradulations on your Mustang! And I agree with the prevailing opinion that your problem is probably the accelerator pump,,, Or, your ignition timing might be a little retarded. _____________________________ 66 Coupe I-6 Conversion, 408 Windsor, Tremec TKO 600 Wilwood fronts, SSBC Rears 9" Track Loc. "Thats Dumb." (in reply to my77stang) Post #: 5

RE: Presentation ... and first problem! - 7/31/2007 10:27:53 AM    _Remi Posts: 121 Joined: 7/31/2007 Status: offline Thank you all for your answers :) Is changing the accelerator pump something difficult/expensive? Note that unfortunately I am a beginner and would not be able to do it myself (at least for now :)) (in reply to JMD) Post #: 6

RE: Presentation ... and first problem! - 7/31/2007 10:58:19 AM    67mustang302   Posts: 5421 Joined: 4/21/2007 Status: offline Accelerator pumps are'nt difficult to replace parts on. It may be as simple on your's as something just isn't set right, or hooked up. _____________________________ Who cares how much horsepower it has, all that matters is how fast it goes! Best run 13.23 at 106.97mph with a 2.183 60' Times from before tune and driver mod. (in reply to _Remi) Post #: 7

RE: Presentation ... and first problem! - 7/31/2007 11:20:37 AM    JMD Posts: 3138 Joined: 1/18/2007 From: Las Cruces, NM Status: offline The difficulty will depend on which carburator is on your car, some brands are easier than others, if you have a chance, post a couple of photo's of your carburator, one from the front on each side.. the difficulty level from brand to brand varies from very simple to medium difficult for a person with no carb experience...  _____________________________ 66 Coupe I-6 Conversion, 408 Windsor, Tremec TKO 600 Wilwood fronts, SSBC Rears 9" Track Loc. "Thats Dumb." (in reply to 67mustang302) Post #: 8

RE: Presentation ... and first problem! - 7/31/2007 10:24:45 PM    _Remi Posts: 121 Joined: 7/31/2007 Status: offline The mechanic was too busy today so I decided to investigate! As said before, I am a pure newbie. I decided to remove the air filter to have a look at the carburetor which seems to be a Motorcraft 2100D (if you have some pictures, I may be able to recognize it). I found something strange about the "Choke plate": it never moves (even when someone accelerates motor running or not) and thus stay open all the time. Is that normal? Could it be related to the fact that the engine works way better when the car is already moving? It's maybe a pure newbie question but I'm learning One more thing, there is an oil leak. I parked the car somewhere for 5 minutes and there was drops under the engine and little ones from the front of the car to the rear. Note that the engine was running... Thanks a lot :) (in reply to JMD) Post #: 9

RE: Presentation ... and first problem! - 7/31/2007 10:49:21 PM    4reboy   Posts: 1359 Joined: 7/5/2006 From: Long Beach, CA Status: offline No thats not normal. The choke plate is supposed to open as the engine/choke gets warmer. I don't know much about carb's myself, but I think its a safe assumption that the choke is either broken, or not hooked up. If its electric the wire could not be getting power, or disconnected. And if its manual, who knows, coulda just came loose. It could simply be a broken choke in general as stated before. good luck! nice looking car! _____________________________ First car and first mustang, 1969 Mach 1 (in reply to _Remi) Post #: 10

RE: Presentation ... and first problem! - 8/1/2007 12:53:04 AM    Soaring Posts: 17565 Joined: 10/29/2004 Status: offline Since you are pretty new to the wrench turning business, my suggestion is that you take the carburetor off and take it to Autozone and exchange it for a rebuilt 2100.   Although not real sensitive, the carburetors can be a PIA if you are not used to dialing them in.  (in reply to _Remi) Post #: 11

RE: Presentation ... and first problem! - 8/1/2007 5:37:30 AM    scuf23   Posts: 326 Joined: 3/4/2007 Status: offline Remi - welcome to the forum and nice car ! concerning the carburetor issue, I think you should follow the recommendation from Soaring, excepted if you spot very easily a reason for the choke plate not to move ... if you could upload some pictures it would be great! For the oil leak, get undet the engine and try to the see where it is coming from ... it could be the gasket of the oil pan where it interfaces with the engine, or it could be the gasket at the bolt at the bottom of the oil pan ... or it could be somewhere else ... if you cannot locate the origin of the leak, than go the mechanica Some additional questions - the car looks really good, but did you get it inspected prior to buying it? do you know how much work has been done on the engine ... some more pictures of the engine compartment and interior would be great as well Merci et bonne chance! (in reply to Soaring) Post #: 12

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