Originally Posted by old polaris tech

Propane torch especially around the rear of the counter balancer. You have to take off the crank gear first. Pay attention to the dots on the gears when reassembling. Several people have just left the c/b in the outer cover,but to really do it right it's best to have the tool and pull it. Once the outer cover's off you can throw a little heat around the cases especially the clutch side that has the two crank bearings. Tapping on the ends of the crank shaft with a dead blow hammer helps in starting the case separation,plus there are a couple points you can tap with a brass hammer to get one side off. On the other side just knock the crank shaft out. Leave the bearings on the crank shaft for the machinist to remove and give him the new ones along with the rod assy to install. Again the manual can help you on tear down and assembly.