The iboats forum moderators are excited to announce that at this time it appears the iboats forums posting pictures function is working once again. Though we cannot promise for how long, we're hoping for indefinitely.
In the op's first post the photo shows the bolt securing the balancer to the crankshaft is through the insert. Makes me wonder if this is an offset washer used to gain clearance for the pump assembly, which is bolted on as a drive pulley would be.
Wayne