take the impeller out. next make a plate with a hole for the prop shaft. put the plate on the shaft. next add spacers on top of the plate till you can catch a nut on the prop shaft. Tighten nut till the pump cartridge and gears start to move add spacers and repeat till the cartridge is even with the gear case. Should then pull out or tap the assy. out. mark the pump cartridge for installation. heat may be needed. don’t lose shims.
