Sometimes when connecting rods break they can damage the sleeve. This can cause the sleeve to become jammed in the case. Look up through the back plate opening and check the rim of the bottom of the sleeve. If it's not nicked or distorted you should be okay. I would using some penetrating lube on the sleeve. Spray some wd40 in through the back plate opening, and then let the motor sit upside down for afew minutes. I would heat the motor up to allow the case to expand and use a wooden dowel or other non-metal device to push up on the rim of the sleeve. I would alternate on different edges of the sleeve so that it doesn't become "cocked" in the case. The sleeve should come out.