did anyone try to use a drag link socket, 1/2 in. drive instead of the wrench? It is a big slotted screwdriver on top of a socket basically. I remembered I had a set of these for an application on a boat motor from Sears. the 3/4 inch screwdriver drag link fits the wrench size almost perfectly. they are $20 for a set of four sizes from Sears.
Joe