Thanks, but I found a somewhat simpler solution. The rivet can be removed by grabbing it firmly with vice grips; and the twisting it until it comes out of the tongue. Once the tongue is in place within the crank, gently file the rivet hole until it can be inserted back in the hole. Then place the larger side of the rivet in a solid surface, like the head of a large hammer- and peen the smaller side to restore the fit. Perhaps all of this could be avoided if the vendors would sell the tongue without the rivet, and include the rivet and simple instructions for the buyer to use. I guess either solution works, so take your pick!
