that picture appears to be a motorcycle type engine, if so there is a good chance the rod does not unbolt from the crank, if that kind of work needs to be done, the pin get pressed out of the crank, and then has to be properly aligned with a jig to re-install the crank pin.
I seems like he is looking to pull the piston off the connecting rod, otherwise I dont see him pulling the wrist pin clips to complete this task,
