I know this has come up before, but I am servicing the main sail furling motor and worm drive. It is all well but the top shaft seal should be replaced. Problem; Shaft into the worm gear is very tight. Soaked it in diesel for some hours, hesitant to hit it. Plan to find a press to press it out. Does anyone have a better idea? Nick S/Y Amelia Leros. AML 55-019