Topic: Throttle Binding--Possible Wear in Under-dash Pedal Assembly?

[drummingrocks]

Hi guys, I was wondering if anyone had ever encountered any significant wear on a '69 gas pedal assembly?  I'm still troubleshooting a slight binding condition in the gas pedal on my '69 Mach 1.  So far, I've replaced the throttle cable twice and have verified multiple times that the cable has a dead on straight throw to the carburetor linkage.  I've run three different carburetors on this car (two Edelbrocks and a Holley), and all have had this bind in the accelerator pedal, so it's definitely not the carburetor. 

At this point, all I can think is that there's something going on under the dash.  Everything else is new or has been replaced.  I remember inspecting and lubricating the pedal assembly when I restored the car, and at the time I didn't notice any appreciable wear.  I've poked around under the dash with a light, and there's nothing interfering with the throttle cable/assembly.  Maybe I'm missing something?  Thanks for any suggestions, help, advice, etc. 

[Brian Conway]

     Suggestions, help, advice etc ?  I have a little recent experience in this area.  Slightly different situation with my after market intake and carb.  I shortened the Plastic jacket by 1 and 1/4" and moved the lead plug the same distance and problem solved.  You say the cable is not your problem.  Good.  That narrows the problem to the pivot assembly or the carb accelerator assembly.  With the cable disconnected at both ends test both assemblies for the binding issue. Find the problem ? No ?  OK, now reinstall the cable and test.  Got binding ?  I hope you have a sense of humor because I know this can be a little annoying when driving the car.  Stick with it you'll get it.  Brian

[drummingrocks]

I hope you have a sense of humor because I know this can be a little annoying when driving the car.  Stick with it you'll get it.  Brian

Thanks, Brian!  Trust me, I've learned to have a sense of humor with these cars.  Some days you've just gotta laugh or else you'll cry.   I didn't realize how much I'd adapted to the binding until my wife tried to drive the car last weekend.  She could hardly take off or even go down the road smoothly.

[Aussiemach]

Found this in the library here. hope you've got it fixed

http://concoursmustang.com/speegle/69%20Mustang/69%20Mustang%20Accel%20Linkage%20Service%20Campaign%20654.pdf

[drummingrocks]

Thanks, Aussiemach.  I haven't had a chance to work on it yet.  I spent the weekend fighting the thermostat housing and exhaust manifold heat shield.  I'll let you know what I find out.