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amishman · 09-08-2013, 08:05 PM

Deceleration vibration really bothered me a lot, and a friend says it's a Model A, what do you expect? My first A was a 31 Roadster with a new rebuild from AER in Skokie IL, it had a 5.0 head, and balanced crank. I had my 1930 Townsedan rebuild this last winter with AER also, this one with 5.5 head, Burlington balanced crank, larger intake and exhaust valves, and Stipe .340 cam. The deceleration vibration was about the same. But let me tell you this, because I don't understand all of the physics talked about above, Last weekend I installed the Weber downdraft carb. and First Street electronic ignition and the vibration is gone. Most might not believe this, but it is true I think I'd read something like that in a post before. This weekend weekend we put in the Mitchell overdrive transmission. My wife can't believe it's the same car, she thinks driving from Michigan to Tacoma won't be so bad after all. Hope to meet some of you Fordbarners from the West Coast next summer.

09-08-2013, 08:05 PM	#43
amishman Member Join Date: Jul 2012 Location: Freeport, MI Posts: 35	Re: What causes deceration vibration Deceleration vibration really bothered me a lot, and a friend says it's a Model A, what do you expect? My first A was a 31 Roadster with a new rebuild from AER in Skokie IL, it had a 5.0 head, and balanced crank. I had my 1930 Townsedan rebuild this last winter with AER also, this one with 5.5 head, Burlington balanced crank, larger intake and exhaust valves, and Stipe .340 cam. The deceleration vibration was about the same. But let me tell you this, because I don't understand all of the physics talked about above, Last weekend I installed the Weber downdraft carb. and First Street electronic ignition and the vibration is gone. Most might not believe this, but it is true I think I'd read something like that in a post before. This weekend weekend we put in the Mitchell overdrive transmission. My wife can't believe it's the same car, she thinks driving from Michigan to Tacoma won't be so bad after all. Hope to meet some of you Fordbarners from the West Coast next summer.