throttle linkage

Bruce is right about their being readily available. Be sure to do your homework with the judging standards and get the correct one for your car. They will all functionally interchange but you might as well have the correct one as they will probably all cost the same. Also search the archives here. Use the advanced search and restrict the search to Model A parts for sale to narrow it down. If you update your profile to show your general location someone might suggest a local source. An example being if you are southern California there is a very good swap meet (The Big Three) coming in two weeks where I am sure you could find one.

Charlie Stephens
 
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I am trying envision your situation. Do you mean the mounting is loose so that the entire assembly flops around? If so, make sure the two large bolts that secure it to the back of the engine are not bottoming out and therefore not tightening against the assembly. Modern bolts can be too long., even with lock washers.
If, however, you mean that the throttle arm flops around, you may have a broken or very weak return spring. There are two basic accelerator linkage styles, with some variations within each group, mostly centering around the shape of the main frame. The function is identical between them all, though. One style has the throttle arm to the carburetor pinned in place, while the later style has a spring that simply slides up the arm and hooks into place. If the spring is broken or weak - a VERY common situation - then the throttle arm will flop around and give the appearance that the assembly is worn. Because the long shaft across the top of the assembly is a slow-moving rotation (pivot), it's hard to imagine that there would be enough wear in those two places to cause a loose shaft. Of course, with these cars 85 years later, NOTHING is impossible! I'd remove the assembly from the back of the engine and inspect it. It might only need a new return spring.
Can you post a couple photos with indications where you believe the wear is? That will help us zero in on your problem.
Marshall
 
One more point - If the looseness you are talking about is happening near the starter where the hand throttle pivot arm is located on the accelerator linkage, this arm is supposed to be somewhat loose on the vertical shaft. It is not a precision fit because it allows for some flex in the linkage assembly and the engine itself. Once the short linkage rod is connected between the accelerator assembly and the arm on the steering column, any looseness here will go away or be reduced to the point of being inconsequential. You could, in extreme cases, remove the cotter pin and stack flat washers above that pivot arm to take up slack. I have had to do this only a couple times to avoid welding up the vertical shaft and trying to turn it perfectly round again.
Marshall
 
If the mounting bolts are tight & if it works well, I'd just forget about it. About the only thing that ever breaks, is the return spring.
Bill W.
 
Thanks everyone, cant post pictures at this time as we are on our sailboat in the Caribbean and the car is in frigid N.C. I had a binding situation between the hand throttle and the gas peddle linkage, in the engine compartment of course. As I recall it seems like badly worn bushings letting everything flop around and I doubt this area has seen any oil in many years. You have answered my question, I will take the entire assembly out and have a closer look when I get back in the spring.
 
carolinamudwalker said:
Thanks everyone, cant post pictures at this time as we are on our sailboat in the Caribbean and the car is in frigid N.C. I had a binding situation between the hand throttle and the gas peddle linkage, in the engine compartment of course. As I recall it seems like badly worn bushings letting everything flop around and I doubt this area has seen any oil in many years. You have answered my question, I will take the entire assembly out and have a closer look when I get back in the spring.
Click to expand...

NICE
Any extra room?? I'm freezing.:mad:
 
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