When the mechanic went to remove the fuel servo this morning (the rebuilt replacement finally arrived yesterday; ordered this past Sunday from Aircraft Spruce, but it's not an "in stock" part, had to be shipped from the factory), he found this ~4x1" piece of rubber inside the throttle body. (The penny is for size reference.) Any idea where it came from? Assuming this was the cause of, or at least significantly contributed to, my sudden complete loss of power a couple of weeks ago. 1969 M20F, IO-