Q: I can't figure out how to replace the clutch on the 50080 jabsco pump.
A: To remove the clutch you remove the bolt from the end, then to remove the clutch pulley you require a 5/8" UNC bolt. The bolt screws into the pulley (where you removed the smaller retaining bolt) and lifts it off the pump shaft. Once the pulley is removed you can access the coil retaining bolts.