The way I understand it, you have two options from Amel or the manufacturer who were very slow in their response to me. One, you can purchase a new motor which I understand includes the gear or two, purchase a complete new pump entirely.
Our boat is in Bundy.
I have a friend who also berths his boat at Newport and had intended to meet up for a sail, I will drop by if that happens.
Barry & Robyn
Tradewinds III SM# 171